Post by: Fred on August 19, 2011, 15:47:22 PM
Quick build last night, a bit of time, and a fresh bottle of cyano, and here we go :
(http://www.gliderireland.net/forum/images/uploads/Fred/P1050893.jpg)
I can already see a few things to change, and also to make it much much lighter, but will see how it goes like this!
I have modified the plan already, I might put it for download after the first flight.
Post by: erwan on August 19, 2011, 19:04:28 PM
Post by: Fred on August 19, 2011, 19:20:49 PM
Revenus de la peche ? :D
Non, pas prevu, mais faisable avec un coup de scie, y'a la place pour les servos :D
No quadroflaps, but do-able, lots of room for the extra servo in the wing. the plan shows the quadro version :D
Post by: erwan on August 20, 2011, 10:48:39 AM
Bref le bonheur. Il faut que je post des photos de ce que je monte en ce moment :D
Post by: rasemote on August 23, 2011, 08:58:01 AM
j'ai hate de voir cela jolie travaille FRED
Post by: mario on August 24, 2011, 05:33:58 AM
Post by: Fred on August 29, 2011, 12:02:06 PM
A bit of progress this week end, with a bit (lots!) of sanding and the start of the wings.
All that is an hour worth of work :D
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060002.jpg)
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060003.jpg)
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060005.jpg)
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060006.jpg)
With the daughter :D
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060008.jpg)
A relatively big machine by the way. A tad over 2m but actually looks bigger. Might be due to the generous wing chord or the high fuselage :?:
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060013.jpg)
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060014.jpg)
Left to do : wing sheeting, servos, covering! Not much, but I really like how this glider "feels" so far! (Autosatisfaction ON! :D )
It is also possble to make this glider extra light, I have added a few options in the plan for a very lightweight version.
Post by: rasemote on August 29, 2011, 12:14:55 PM
j'ai hate de recevoir
thierry
Post by: orionis on August 29, 2011, 12:45:06 PM
Post by: rasemote on August 30, 2011, 18:23:15 PM
Post by: woodstock on August 30, 2011, 20:22:35 PM
Will kits be available?
Post by: Fred on September 01, 2011, 07:59:30 AM
Chris, no plan to kit that one yet, but might consider it, not sure if there is a demand for this kind of stuff. More and more people don't want to have to glue things together before being able to fly :(
We'll see how that thing fly anyway :D
On the build, not much done so far, kids are taking all my free time! A few yeards back, I could have finish this model in a day! :(
I'll make some photos tonight of the wing sheeting.
Post by: woodstock on September 01, 2011, 13:43:23 PM
Post by: Fred on September 01, 2011, 14:13:20 PM
Yes. This is how I do all my kits for the shop :D
Post by: Fred on September 16, 2011, 08:02:33 AM
Very busy at work and with the shop :cry:
First : Thierry, c'est dans la boite!
And just for you all, here are the plans for the Quark :D
PLANS OFF FOR UPDATES
I can print the plan for the price of the paper for the one that want the full plan. Contact me! (sheets are 800x1470 and 800 x 1200 approx, not small!)
Photos of the finished model, soon! :D
Post by: rasemote on September 16, 2011, 08:13:26 AM
thanks you
j'ai acheter les servos et récepteur
une nouvelle radio
la colle
i ready
Post by: Alan_Perse on September 16, 2011, 19:38:36 PM
Post by: rasemote on September 27, 2011, 19:56:30 PM
alors quoi de neuf docteur cela avance fred ....
:D
Post by: erwan on September 27, 2011, 20:26:30 PM
Quote from: "rasemote"
toc toc toc toc
alors quoi de neuf docteur cela avance fred ....
:D
+1 :D
Post by: mario on September 27, 2011, 20:42:05 PM
Post by: Fred on September 29, 2011, 14:47:01 PM
Nothing done, only managed to cut out the ailerons! Too much work with 12h+ days at the moment! :!:
Post by: JohnPearson on October 22, 2011, 22:47:36 PM
Started the Quark 2m, and so far may I say that this is a great model to build and quick to stick together. I have had no problems yet with the plan except I had to put extra ply at the fuselage joints for strength, this was due to the cnc cutter, I think. I like the new tail design, which saves a lot of time during the building process.
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/quark1.JPG)
All parts cut out and checked against the plans.
All the formers, lined up perfect except C5, however a little triming and everything was fine.
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/quark2.JPG)
Checking the formers before adding the other fuselage side.
The two sides of the fuselage are now added and supported with rubber bands before any glue is applied. As I said, this is a great model to build, all this done in less than 2 hours WoW!
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/quark3.JPG)
Less than 2 hours work, i am starting to like this build already!
Next I need to add the top and bottom sheeting and start on shaping the nose, keep you all updated soon!
Post by: Happy Days on October 23, 2011, 07:06:44 AM
With all this building activity on the forum I’m beginning to feel a bit ‘left out’. :(
I might have to buy something new to play with :?: ………………maybe a 2mtr Quark. 8)
Keith
Post by: JohnPearson on October 23, 2011, 21:59:39 PM
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/quark4.JPG)
All formers glued and the bottom sheeting applied.
The next step was to mount the bell crank for the elevator, I had no 4mm tubing at hand therefore I used some metal rods with a plastic cover which I had spare, It proved to be perfect and the system work well.
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/quark5.JPG)
I used a push rod to connect to the bell crank, an old way to connect control surfaces.
I decided at this stage to build the elevators, again a simple process due to a good design.
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/quark6.JPG)
The elevators can be removed for transport.
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/quark7.JPG)
A quick check to see if all is o.k., yes works perfect!
I finished the top sheeting and give the fuselage a good sanding down and removed all the rought edges. Next I will build the cover and add the nose than sand the edges round and smooth.
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/quark8.JPG)
Build so far, looking good I think :?: :?:
Thats it for now, can't do any more tonight, I have run out of glue :oops: time to call Richard :lol: :lol:
Post by: billscottni on October 24, 2011, 10:18:37 AM
Imagine running out of glue! :shock:
What are you going to sniff tonight? :?:
Post by: Fred on October 24, 2011, 11:22:44 AM
Really lokks like this is coming along nicely! :clap:
By the way, for the rudder, you think the one on the plan is better, or the one you have? (to me, the one on the plan, looks more "rigid" if you see what I mean)
I agree with the cutting, asked them to do a quick job for prototyping, and looks like that's what they did! :!:
Remember that the plan you have, if the final one :D
The hard bit, are the wings now! Have fun, and go get some glue! (Mr Harry Potter's glasses! :P )
Post by: andrew wallace on October 24, 2011, 18:42:50 PM
must say the kit goes together rather well :clap: :clap:
Post by: JohnPearson on October 24, 2011, 22:44:20 PM
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_6047.JPG)
Fuselage ready for an over all sanding to shape.
The tail I have is the prototype and Fred has changed this on the plans, However I just used a few strips of hard balsa along the edges of the rudder and fin to make them more rigid see below:
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_6041.JPG)
Tail with added strips for strengh
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_6045.JPG)
How the tail looks when added to the fuselage.
So that's about it for now, not a lot done tonight, however I am still making good progress with the the Quark 2m and by the way my glasses are an old pair which I keep in the workshop, and yes Fred, they do look like Harry Potter's :oops: :oops:
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_6037-1.JPG)
Cheers for now from Harry Potter!!
Post by: Happy Days on October 25, 2011, 07:01:41 AM
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_6041.JPG)
Tail with added strips for strengh
quote]
It’s statements like this that throw me completely off.
When you say you’ve “added some strips of hard balsa along the edges” do you mean;
a) that you have stuck some kind of balsa veneer strips onto the original edges of the rudder & vertical fin? (I’ve never heard of such veneer strips,…but that doesn’t mean such things don’t exist of course.)
Or
b) That you’ve stuck some balsa of the same thickness to the edges of the rudder/fin? (Thereby increasing the surface area of the rudder/fin in the process. Which is what the pictures look like to me.)
This probably sounds a daft question to all you experienced guys, but to a Numpty like me :roll:
K.
Post by: Happy Days on October 25, 2011, 07:05:08 AM
Post by: billscottni on October 25, 2011, 08:37:18 AM
Post by: Happy Days on October 25, 2011, 08:55:13 AM
But this begs a further question…… :?:
Did JP reduce the original rudder & fin by the thickness of the edging pieces, or are the rudder & fin now a little bit larger than the original parts?
Keith
Post by: JohnPearson on October 25, 2011, 11:19:25 AM
Fred question, I have no cardon tubes, therefore could I use Aluminum 10mm tubes for the wings, the 1m tudes are 50g each, also how did you join the wings to the fusleage??
Post by: andrew wallace on October 25, 2011, 12:49:54 PM
another question fred what about the position of the CG i'm gonna put a tow hook on mine and use the bungee :clap:
Post by: Happy Days on October 25, 2011, 12:57:26 PM
These little tricks are all very interesting to know.
Thanks to both JP & Bill. :D
K.
Post by: JohnPearson on October 25, 2011, 16:53:31 PM
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_6051.JPG)
Fuselage ready to cover
Post by: andrew wallace on October 25, 2011, 18:03:12 PM
that's the bit i hate the most the sanding down
i have the servo's installed in the fuselage and i'm now putting servo's in the wings more photo's soon :D
Post by: billscottni on October 25, 2011, 18:30:11 PM
Post by: JohnPearson on October 25, 2011, 18:34:13 PM
I will have to have a look what's in the box, I may ask Terry to make up a set of graphics for 'Islandmodels' if Fred can send me the Logo!
Post by: Fred on October 25, 2011, 19:41:00 PM
Well, lots of chat in here! :D Sorry, had to deal with some flooding in the garden!
All good, all the water is in the neighbour's garden now! :lol:
John, the build is really looking good!! :clap: :clap: Hats off Mr P!
Or should have said Harry? :?: Scary one for sure! Good photo anyway, made the daughter cry! :lol: :lol:
Ok, so, for the spar, I have to admit that using aluminium went into my mind at some stage... I'd say, why not!
After all, this is a prototype, so why not trying! Just don't crash the thing, you might bend a wing! :lol: :P (well, no, I would be surprised!)
To hold the wings, if I remember, all is on the plan :?: But as Andrew said, the design use a hook and rubber band (good old fashion!).
In N1, you have to glue N1'. The hole in the middle, is where you screw the hook. Holes in N0 and fuselage should align to allow to put the rubber band (should have plenty of access through the canopy. Designed the shape to have maximum access to the radio :D ).
Well, I'm sure you know what I mean, but let me know if not, and I'll take a photo for you.
Logo now... Funny enough, I don't have one for Islandmodels!
What format do you want for the file?
I can make up a 3 view with the logos / names, and I'll send you the files to scale if you want.
Anyway, all that is looking good, I'm happy! (autosatisfaction full on! :D )
Post by: Fred on October 25, 2011, 19:44:57 PM
That's on the right of the picture :D
(http://www.gliderireland.net/forum/images/uploads/Fred/P1050867.jpg)
Post by: andrew wallace on October 26, 2011, 20:24:27 PM
i was in with bill ervine the other day and he has some nice transparent oracover first time i've ever seen clear covering but it's £17.99 for a 2m roll :(
i'm sure terry would be delighted to make a glider Ireland logo
Post by: JohnPearson on October 26, 2011, 21:18:37 PM
I have went with the carbon 10mm tubes, which I got today. The Aluminium tubes required epoxy for fixing ribs to much work and added weight to the wings. So hope to get back to the wings tomorrow night and over the weekend, and get it finished by the end of next week, fingers crossed.
I will have to contact Terry and see what he can do for us Andrew!
By the way Fred, look what I picked up today, two big sexy ladies */~# 'I mean glass fuselages'
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/CIMG4344.JPG)
Can't wait to get these big models onto the slope!
Post by: billscottni on October 26, 2011, 22:04:53 PM
Post by: Brian on October 27, 2011, 00:58:47 AM
Quote from: "JohnPearson"
Thanks Andrew!
I have went with the carbon 10mm tubes, which I got today. The Aluminium tubes required epoxy for fixing ribs to much work and added weight to the wings. So hope to get back to the wings tomorrow night and over the weekend, and get it finished by the end of next week, fingers crossed.
I will have to contact Terry and see what he can do for us Andrew!
By the way Fred, look what I picked up today, two big sexy ladies */~# 'I mean glass fuselages'
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/CIMG4344.JPG)
Can't wait to get these big models onto the slope!
Hi John,
My green monster is breaking out.
Brian
Post by: woodstock on October 27, 2011, 13:47:27 PM
Quote from: Brian
Quote from: "JohnPearson"And here! Those look like great aerobatic / VTPR planes! What wingspan is going to be used?
Hi John,
My green monster is breaking out.
Brian
Post by: woodstock on October 27, 2011, 13:49:21 PM
Post by: andrew wallace on October 27, 2011, 15:28:24 PM
Post by: rasemote on October 28, 2011, 13:44:10 PM
Post by: woodstock on October 28, 2011, 16:13:42 PM
Did you ever sell your one, rasemote?
Post by: Fred on October 28, 2011, 17:02:39 PM
Yes, they are, I have the moulds :D
Post by: Fred on October 28, 2011, 17:23:56 PM
For the WS, mine will be 4.5, but you can go between 4 and 5m ws :mrgreen:
Post by: Brian on October 28, 2011, 18:24:03 PM
Mine will be 3M :shock:
???????
Brian
Post by: woodstock on October 28, 2011, 18:39:18 PM
Quote from: "Fred"
Hi Chris,Aha! AHA!!!! :twisted:
Yes, they are, I have the moulds :D
Post by: Fred on October 28, 2011, 18:59:55 PM
We don't want mould!
Post by: Happy Days on October 28, 2011, 19:05:30 PM
Quote from: "Brian"
Hi,
Mine will be 3M :shock:
???????
Brian
That's gonna make for rather a high wing loading isn't it Brian?
K.
Post by: Fred on October 28, 2011, 19:35:06 PM
No fear!
Post by: Brian on October 28, 2011, 21:41:36 PM
Quote from: "Happy Days"
Quote from: "Brian"Hi,
Mine will be 3M :shock:
???????
Brian
That's gonna make for rather a high wing loading isn't it Brian?
K.
Keith,
That might be the chord :shock: :shock: :?:
Dunno Fred ,I'm staying stumm :wink:
Seriously though are those available ?? from who?? how?
Brian
Post by: Fred on October 28, 2011, 22:06:26 PM
I'll send you a mail, we are destroying the Quark topic with all that :oops:
Post by: Brian on October 28, 2011, 23:31:30 PM
Thank you.
I did ask on the toons thread.
Back to Quark.
Brian
Post by: JohnPearson on October 30, 2011, 00:15:16 AM
Sorry, for not answering your questions, I have had a busy few days, between weddings, work and going to see Lee Evans in concert. So!!! I did a little work tonight on the wings of the Quark 2m, one side completed.
I went with the 10mm carbon option on the main spar and used the 10mm aluminum on the back( the model shop had only 2x 10mm tubes instock.
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/wing1.JPG)
A little glue and all the spars are in place
The wings do take time to build, however you must be careful to get everything straight and level for maximum performance in flight.
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/wing2.JPG)
Starting to sheet the wings in light balsa
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/wing3.JPG)
Oneside of the wings finished
Not much done tonight but I should get more build time tomorrow and maybe get the wings finished.
Andrew the fuselages, build by a professional glassfibre company.
Cheers for now!
Post by: JohnPearson on October 30, 2011, 22:45:51 PM
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/wingquark2m.JPG)
Port wing finished and ready to cover with solarfilm 'colour ????' :?:
I think Fred is ready to go for a test flight, so I will have to get my finger out and get moving.
Happy landings
JohnP
Post by: billscottni on October 31, 2011, 10:14:03 AM
Should roll at some rate.
Looking good John. You & Andrew are coming on well. Mr Richard has been surprisingly quiet :?:
Post by: Fred on October 31, 2011, 17:56:00 PM
Building part of mine is done. Starting the finishing stage now :D
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060181.JPG)
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060180.JPG)
Weighted it at this stage (never weight my gliders, but I know the question is going to pop at some stage!), and it came down at 900grs.
Only the covering and electronic to go, so that is going to be a relatively light glider, all without trying to save weight, so it can even be made lighter for all the grams chasers!
Post by: JohnPearson on October 31, 2011, 19:04:32 PM
Post by: rasemote on October 31, 2011, 20:16:35 PM
i like the made lighter for all the grams chasers!
hihihihi
thierry
Post by: woodstock on November 02, 2011, 13:34:31 PM
Quote from: "rasemote"
very nice fredIs Thierry saying you should set it on fire to lighten the airframe :roll: :D ?
i like the made lighter for all the grams chasers!
hihihihi
thierry
Post by: JohnPearson on November 02, 2011, 22:08:11 PM
Just finished building the Quark 2m tonight, therefore, I hope to cover the model over the next two nights and install the gear. Weight at present is 1.5kgs 'dry'
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/quark2maerobaticmodel.JPG)
Quark ready for covering.
Could have her ready for test flight Sat or Sun maybe??? :?: :?:
Post by: JohnPearson on November 04, 2011, 22:14:00 PM
Well just finished covering the Quark tonight. I have kept the graphics simple until I test fly the model, then I may go crazy with the design :roll: Just need to install the gear and balance the model, by the way Fred, what is the CofG, not on the plan??
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/quark%202m%20model.JPG)
Quark 2m ready for test flight can't wait to get her onto the slope!
Keep you all updated how she flys!
Post by: billscottni on November 04, 2011, 22:40:25 PM
Post by: johnfireball on November 04, 2011, 22:44:48 PM
That looks really nice, is it available in kit form?
John.
Post by: JohnPearson on November 05, 2011, 00:12:04 AM
This is one of the prototypes designed by Fred,that Richard, myself and Fred will be test flying soon. Not sure if this version will be available as a kit (all wood), that will depend on flight performance, if it is to be added to the Islandmodel's portfolio of short kits.
Post by: rasemote on November 05, 2011, 09:19:50 AM
:clap: :clap: :clap: :clap:
Post by: Fred on November 07, 2011, 09:14:36 AM
That thing is really looking good John! :clap: :clap:
Can't wait to see how that fly!
Mine should be finished this week hopefully.
CofG need to be determined in more details after the first flight, but in theory, CG is right at the front of the wing joiner. (but you have a full flying tail, so you have lots to play with :D )
Post by: JohnPearson on November 07, 2011, 16:20:04 PM
I will use the cofg as indicated and see how she performs off the slope. I had a little touble with the wings when I put the carbon rods in and used the rubber bands to hold all together, even with strong rubber bands, the front of the wings would move out, therefore I added a small carbon rod across the wing slightly behind the leading edge, this stopped the wings parting at the front, however if we moved the hooks forward in front of the first carbon spar, this would prevent the front of the wings parting, therefore, no need to add the extra cardon rod at the front.
I will take some photos Fred, to show you what I have done tonight.
Post by: Fred on November 07, 2011, 16:57:33 PM
I was not too sure about the positioning of the hook! Always follow your first idea! :!:
Might be good to add one in front, but also keep the other one :?:
Post by: JohnPearson on November 07, 2011, 21:35:50 PM
O.K. the Quark 2m is ready to fly. I used the Cof G you suggested and it balanced with a battery and 12oz/340g of lead.
Here is a photo of the changes I made to the wing joining system.
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_5164.JPG)
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_5163.JPG)
If you changed the last rid on the wing, and put the cable hole at the back i.e. ( the reverse of the present design), then we could add the hook in front of the front wing spar, which would hold the wings together better. I could not do this, due to the fact that I had already added the hook brocks and covered the wings, the rod added to the front, was a quick fix solution.
When I talk to you next Fred I will explain it better, hopefully soon!
The AUW ready to fly is 3.8lbs/1.7kgs
Post by: Fred on November 07, 2011, 23:12:40 PM
I'll modify my plan to my first idea tomorrow. I'll put a screenshot here.
1.7Kg, not bad at all, that should do it fine! :D You might even remove a bit more lead from the nose after the first flight.
Can't wait for the first flight too now!! :D
Post by: Richard Boyd on November 08, 2011, 08:50:40 AM
Post by: Fred on November 08, 2011, 09:01:32 AM
Report, photos, videos as soon as you come back home! :D
Mine almost finished, just can't wait!
Post by: Richard Boyd on November 08, 2011, 11:34:38 AM
Camera is ready and so am I lol
As long as we get enough wind to fly the fots will follow.
Post by: Fred on November 08, 2011, 11:35:54 AM
Post by: Fred on November 08, 2011, 11:37:38 AM
Post by: Happy Days on November 08, 2011, 11:44:51 AM
I’m very interested to see how this thing flys. I want to see if it can flip, though I doubt there will be enough lift for that today.
Anyway guys, know that the eyes of Ireland are upon you today. :D
(Not trying to put any pressure on you of course! :lol: )
K.
Post by: Fred on November 08, 2011, 13:49:01 PM
Not that I am curious at all to know! :P :P
No shame, even if that crashed!
Post by: Richard Boyd on November 08, 2011, 16:11:05 PM
I will let JP give you his report lol.
Post by: Fred on November 08, 2011, 16:47:56 PM
Time to blame the slope, the weather, the CofG :lol: :lol:
Come on JP this is torture! :)
Post by: JohnPearson on November 08, 2011, 16:56:45 PM
Just got into the house, 'well no flying today' the wind was perfect, however Richard and I sat on the mountain for over an hour, but the cloud was just to low, a complete 'White Out!'. I did hold the model into wind near the edge of the slope, and she lifted out of my hand and hovered in the wind for a short time, but just could not see far enough to have a quick flight. Still I am off over the next three days, so if the weather improves, the Quark will fly!
Post by: Fred on November 08, 2011, 17:00:15 PM
So, I was right to blame the weather then! :P
Hopefully, the weather will improve now. Same here anyway, haven't see the light all day! :!:
Post by: Richard Boyd on November 08, 2011, 17:08:15 PM
I really like the over all shape of the Quark, very pretty :wink:
The build quality is superb,
A big well done to Fred :clap:
I need to get mine on the building board.
Post by: Richard Boyd on November 09, 2011, 13:33:41 PM
We mite be lucky today !
Winds are strong from the South, which means the smallest slope on the mountain.
Fingers crossed gentlemen for the Quarks maiden :lol:
Post by: Fred on November 09, 2011, 13:46:12 PM
Hopefully, that will fly, and you'll have fun! :clap:
And don't forget the photos! :D
Post by: Brian on November 09, 2011, 14:38:25 PM
Best of luck.
Brian
Post by: Happy Days on November 09, 2011, 15:23:19 PM
PLEASE
Post by: Fred on November 09, 2011, 16:20:34 PM
Well well well...
:mrgreen:
Post by: the Pope on November 09, 2011, 18:10:10 PM
Post by: Fred on November 09, 2011, 18:12:14 PM
Post by: JohnPearson on November 09, 2011, 19:09:43 PM
When to the mountain today, the weather was great clear skies, as soon as we parked the car on top of the slope, the bloody cloud came down and again stop us from flying the Quark 2m so sorry Fred, you will have to keep the fingers crossed a little longer!
Post by: Fred on November 09, 2011, 19:10:57 PM
Post by: Richard Boyd on November 09, 2011, 19:19:51 PM
One way or another this Quark has to get airbourne
Post by: Fred on November 09, 2011, 20:24:18 PM
Post by: JohnPearson on November 10, 2011, 11:48:33 AM
Post by: Fred on November 10, 2011, 11:50:03 AM
Lovely day here, blue skies and wind!
And stuck in the office! :evil:
Post by: billscottni on November 10, 2011, 13:13:10 PM
Post by: Fred on November 10, 2011, 13:37:31 PM
And I'll have a look :)
Post by: billscottni on November 10, 2011, 13:43:56 PM
[/youtube]
Post by: Fred on November 10, 2011, 14:21:46 PM
Ah well, we just have to wait!
Post by: Fred on November 10, 2011, 15:38:28 PM
Just received a phone call from 2 very excited guys from the top of a mountain somewhere north! :D
I say nothing, they will tell us better how the Quark flies, but you can expect some photos and a video!
Did I said excited?? :D :D
Post by: JohnPearson on November 10, 2011, 19:32:52 PM
Well the Quark 2m flew today and what a great model this is! my hat off to you Fred, for designing a smooth flying totally fantastic performing aerobatic glider.
Richard and I flew the Quark for over an hour, I done the first 30mins and checked that the model was flying straight and level, and completed the basic aerobatic manoeuvres, rolls, inverted, stall turns etc. After only, I guess about 60 seconds, from throwing the model of the slope, I loved the feel of the Quark, the model just did everything you asked of it!. Richard took over the controls and gave the Quark a good hard work out, and after again roughly 60 sec I could see the smile on his face, he was ready enjoying the Quark, I will let richard tell you all how he got on, when he posts later.
The light started to get poor, so a landing was called, so I did a few passes to see how she would feel on the back off the slope, smooth and steady all the way in, so on the third pass, I give the Quark a little up elevator, and she just floated to a perfect slow landing, no wing drop or flaps needed. Here are some photos:
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_5170.JPG)
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_5171.JPG)
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_5184.JPG)
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_5186.JPG)
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_5187.JPG)
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_5188.JPG)
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_5191.JPG)
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_5193.JPG)
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_5194.JPG)
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_5218.JPG)
(http://www.gliderireland.net/forum/images/uploads/JohnPearson/IMG_5236.JPG)
I will post the setting (CofG position, amount of throw on the control surfaces later) I just need to give the model a good overall look over and check that everything is still in place for the next flight.
Richard has some video of the flight which he is working on I write this post, so, all I can say is well done Fred, a great model which I have been looking for over many years of flying, I kid you not guys, this glider is that good in the air!!!
JohnP
Post by: mario on November 10, 2011, 19:38:03 PM
I want one :wink:
Post by: Fred on November 10, 2011, 19:56:12 PM
And also for being a tester! :clap: :clap:
Well, I must say that the Quark do look good in the air! It looks right on the photos!
Oh boy, can't wait to see the video! :D
Did you move the CG back a little after the first launch?
What was the wind speed roughly? Just to see if the Quark will fly in a wide range of wind if you see what I mean :?:
Ok so, tomorrow, I will finalise the plan, write a quick article, and make all that available to download.
I hope to have mine ready for this wek end :D
Post by: Fred on November 10, 2011, 19:58:35 PM
Quote from: "mario"
:lol: freeeeeeeeeeeeeeed,
I want one :wink:
I don't speak English! :P :P
Everything is negociable! :D :mrgreen:
Post by: Fred on November 10, 2011, 20:05:19 PM
Post by: mario on November 10, 2011, 20:11:13 PM
Quote
--------------------------------------------------------------------------------
mario wrote:
freeeeeeeeeeeeeeed,
I want one
I don't speak English!
Everything is negociable
OK tu veux quoi, cassoulet,confit, choucroutte.... :wink:
Post by: Fred on November 10, 2011, 20:13:15 PM
Post by: JohnPearson on November 10, 2011, 20:19:21 PM
CofG is just in front of the front wing joiner, I will measure the distance and post it. I balanced the model with a very slight nose down for the maiden, and in flight I just added one or two clicks of up trim when I was happy with the flight performance, very little adjustment was required, she flew as they say straight off the plan. Today I think the wind speed was about 15mph gusting to 19mph at times, however the slope was the south facing slope, which produces poor lift compared with the other slopes around the mountain.
The Quark has a good speed range, I hovered it straight into wind, then I tried some high speed passes across the slope face, 'she is fast' a quick turn into wind and back to the hover, great stuff.
Post by: Fred on November 10, 2011, 20:22:11 PM
Thanks again for that John :clap:
Post by: rogallo on November 10, 2011, 20:23:58 PM
Post by: Richard Boyd on November 10, 2011, 20:33:42 PM
Words can't explain the feeling this plane gives me.
It has it all !!!!!!!!! lovely, strong, perfectly formed, thrilling ,sexy , may I say it ! F__ken awesome glider.
Every maneuver is percise and so so simple to achieve, it holds four point rolls for ever ! in the knife edge quarters, this is an F3A style plane/glider that is made of high quality wood !!!!!!!!!!!!!
Snap rolls are sublime it exits them with speed and precision.
Keith my old cock, get a Quark :clap:
The rudder looks quite large but this does not kick the glider out of maneuvers, I just love this plane so much.
I have a Le Fish and it is in no way as much fun as JP'S Quark, I would go further to say I wish I had of had my hands on a Quark before buying a Vector. The Quarjk is an alround better plane with no vices that I can detect.
For the novice pilot that wants a plane to learn aerobatics there is no better plane, in my eyes. or a good aerobatic pilot there aint no better, unless you join the expensive crew that pay over the odds for mouldies, then get someone to install there radio gear and set up their radios for them :roll:
Fred you have designed and produced one brilliant plane
Roll on the big winds to get her down low and dirty !!!!!!!!
Post by: Brian on November 10, 2011, 20:38:05 PM
Video ???
Brian
Post by: Fred on November 10, 2011, 20:42:10 PM
Wow, that good, really?
Ok, I must remove the fingers and finish to cover mine to give it a go! (So do you Mr B! :P )
Thanks again Mr Boyd for the comments, especially coming from a pilot of your class! :clap: :clap:
Was concerned a bit for the rudder, this is one of the hardest part to get right in size / effectiveness and must work without adding to much induced effects.
Post by: JohnPearson on November 10, 2011, 20:42:54 PM
75mm from the leading edge on the fuslage, or at the front edge of the front wing joiner hole pre drilled into the side of the fuselage.
Throws:
Elevator, as shown on the plan cut out (all flying tail) I used 60% expro rate on the elevator also.
Ailerons, 30mm again I used alot of expo 60%
Rudder as much as possible 40mm each way with 60% expro
Post by: Fred on November 10, 2011, 20:46:26 PM
Post by: JohnPearson on November 10, 2011, 20:56:09 PM
Post by: Fred on November 10, 2011, 20:58:05 PM
And the ailerons are... well, big :mrgreen:
Post by: Richard Boyd on November 10, 2011, 21:01:24 PM
Post by: Fred on November 10, 2011, 21:06:51 PM
Looks like the glider have a correct speed range, and the rolls looks very sharp in the stops.
I like the hability to turn a roll with almost no speed :clap:
Well, that is looking really good for a first flight! :clap: :clap:
And thanks for the flag :lol: :lol:
Post by: mario on November 10, 2011, 21:18:41 PM
Post by: Richard Boyd on November 10, 2011, 21:42:13 PM
Next visit to the mountain I hope to get John to do the video footage.
This Quark is so sweet.
I never fly a borrowed glider hard as I have smashed other peoples planes in the past and felt really guilty :(
This time the I feel the quark has so much to offer and I hope to surprise you :wink:
Keith , the Quark is blender heaven :clap:
I am clearing my bench tomorrow and starting to build the Quark kit I got from Fred yippee
Post by: Happy Days on November 10, 2011, 22:20:13 PM
Quote from: "Richard Boyd"
Keith , the Quark is blender heaven :clap:
I want one!,……..no, I want a dozen!!! :D
(BTW Richard, I’m still struggling with blenders. Sometimes I can do them, sometimes I can’t. :!: )
I must say I’ve rarely heard of a new model that caused such an uproar on a forum. So well done to designer, builder and pilots. :clap: I’d be very interested to see how The Quark performs in the big winds of winter.
I’ve got quite a few projects coming up for the workshop so I won’t be getting a Quark this side of xmas,……. but in the New Year perhaps. :wink:
Well done Mr. Boyd for a rapid video production. I see you sneaked in a few aerial shots, you cleaver little chappie you! :clap:
Keith
Post by: billscottni on November 10, 2011, 22:28:34 PM
Post by: JohnPearson on November 10, 2011, 22:48:35 PM
Yes we throw the F22 off the slope, but hit a down draft which happens on the south slope, the F22 hit the ground down the slope, and one of the control horns on the ailerons snapped off so no joy this time, I will replace the part and try again, this time off one of the other better slopes.
Post by: billscottni on November 10, 2011, 22:53:54 PM
Post by: johnfireball on November 10, 2011, 23:09:59 PM
She looks beautiful. Fred when is kit coming out I think there would be plenty of interest what with Christmas and a 50th birthday approaching.
John.
Post by: Fred on November 11, 2011, 10:25:26 AM
Plans for the Quark2M are now available! :D
The non tiled version won't fit in a A0 sheet, so that is a bit oversize!
Fuselage plan - 1410x800mm
http://www.gliderireland.net/files/quark/Quark2M-FuselagePLAN.pdf
Wings plan - 1110x800mm
http://www.gliderireland.net/files/quark/Quark2M-WingsPLAN.pdf
And tiled versions for A4 printers:
http://www.gliderireland.net/files/quark/Quark2MFuselage_tiled.pdf
http://www.gliderireland.net/files/quark/Quark2MWingsPlan_tiled.pdf
As for a kit, well, we'll see if there are enough requests, and I can launch a production.
Anyway, have fun! :D :D
Post by: mario on November 11, 2011, 10:37:21 AM
mini 2 kits pour moi et mon pote jean :wink:
Post by: Alan_Perse on November 11, 2011, 10:44:13 AM
Put me down for a kit if you are going to produce one.
Post by: rogallo on November 11, 2011, 12:23:10 PM
Post by: erwan on November 11, 2011, 13:13:33 PM
Post by: Richard Boyd on November 11, 2011, 16:35:32 PM
We done my friend.
Keith, keep on practising your blender.
, another nice maneuver for the Quark is come straight in towards yourself a eye level (with speed) then as you get to the slope edge pull to a vertical up line, hold the line until the model starts to tail slide then apply up elevator, on the down line you can else do a half roll and pull to exit , or just push to exit inverted. It will give you a wee thrill and you can go home to the wife full off testosterone :clap:
Post by: Happy Days on November 11, 2011, 17:54:21 PM
One manoeuvre that I do enjoy when flying towards myself at head height, is to do a 450 degree roll, and then pull back on the elevator. Looks quite good, although also a little freighting the first time you do it. 8)
I did it once at a Glide-In at Big L.. Bill Scott promptly shouted “Who's the F****ing idiot flying that plane!” (I’ve never done it since. Except when on my own. I wouldn‘t like to frighten the visitors away.) :lol:
As for getting keyed up on testosterone . It would do me no good. Mandy says she prefers eating chocolate to having sex. :(
K.
ps, have you got your Quark finnished yet? :P
Post by: billscottni on November 11, 2011, 18:07:14 PM
Using offensive language? Never! :wink: :wink:
If I'd know at the time it was you Keith, I could have left out the "idiot"!!
(sorry! couldn't resist) :lol:
Back to Quarks now.
I WANT ONE TOO!!!!!!!!!
Post by: mario on November 11, 2011, 18:19:54 PM
Post by: hweeler on November 11, 2011, 19:22:44 PM
Eric
http://www.oldschoolmxresto.com/VTPR.html
Post by: Brian on November 11, 2011, 20:50:56 PM
K.
Hey Keith,
You need to check that out.
I've seen that 'Confessions of a post mistress' and they eat chocolate alright :mrgreen:
Brian
Post by: Happy Days on November 11, 2011, 21:13:20 PM
And immersing my manhood in hot, molten chocolate is one of them! :cry: :cry:
Anyway, enough of all this vulgarity, (Whatever will our civilized French friends think of us! :oops: )
So, what was this topic about? :?: Oh yes, elementary sub-atomic particles called Quarks!
K.
Post by: Richard Boyd on November 12, 2011, 07:34:44 AM
Quote from: "hweeler"
Love this new plane Richard and Fred!!! It shows great potential for Vtpr in a smaller ship. I especially love the wood construction. A truely nice modeling experience with traditional modeling style. You guys have done a fantastic job.
Eric
http://www.oldschoolmxresto.com/VTPR.html
Hello Eric and welcome to Glider Ireland.
Yes you are correct about this beautiful constructed balsa wood plane.
I so am looking forward to flying the Quark in stronger lift at our site at Slieve Gallion, we have a beautiful North slope that produces clean air lift and also we are lucky to live in the North of Ireland were the winds blow alot
, sad part is, we also get alot of rain lol.
John was flying on the very small south slope in the video, the air was ok but no good for low down aerobatics.
Fingers crossed the winds will change to the North or East before the winter snow comes.
[youtube]http://www.youtube.com/v/Q1RsOcMB7jQ[/youtube]
Post by: Fred on November 17, 2011, 08:20:49 AM
Rudder servo and ailerons hinges left to be done tonight, and ready to fly! :D
Ok, I'm not saying that because it is mine, but I really like it a lot! :mrgreen: Also the size is very nice, and feel right!
Ok, enough with autosatisfaction, here are the photos :
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060190.JPG)
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060191.JPG)
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060192.JPG)
Post by: Richard Boyd on November 17, 2011, 10:41:13 AM
You will love your Quark :clap:
Post by: JohnPearson on November 17, 2011, 12:59:58 PM
Post by: andrew wallace on November 17, 2011, 15:55:11 PM
Post by: Fred on November 17, 2011, 19:29:49 PM
Look better on photos actually!
Hate this plastic covering transparent thing! :!:
Next one, Ferrari red Vinyl! :D
No flying this week end (family stuff), but hopefully, weather will be good next week end, either in Dublin, or up North (have to fly in NI before the end of year! And good occasion to get a "group" photo! :D )
Post by: andrew wallace on November 18, 2011, 16:22:25 PM
Post by: Fred on November 21, 2011, 08:54:19 AM
Busy for the next 2 week ends! :!: :!:
Work next week end, and month anniversary after that!
That push to December :!:
Post by: venture on February 03, 2012, 11:12:37 AM
I have downloaded the plans and taped them together, but one thing i don't understand;
how are the wings attached?
By means of an 8 mm carbontube sliding in the 10 mm main spars?
Same with the alevators.
Is there a shortkit availeble?
thnx; Nico
Post by: Fred on February 03, 2012, 12:24:52 PM
Welcome to the forum :D
To answer your question, yes, the wings are attached to the fuselage with the carbone rod (8mm), sliding in the carbone tubes (10mm).
The 8mm carbone rods are the wing joiners.
Then, as you can see on the plan, 2 hooks will held the wings to the fuselage (you can use rubberbands).
Hope this helps, but let me know if you need more details
Fred
Post by: Fred on February 03, 2012, 12:25:20 PM
Post by: venture on February 03, 2012, 12:48:24 PM
Quote from: "Fred"
To answer your question, yes, the wings are attached to the fuselage with the carbone rod (8mm), sliding in the carbone tubes (10mm).
The 8mm carbone rods are the wing joiners.
thnx Fred, for the fast response.
The hooks, i had figured out.
Is the allevator held in place in the same manner , that is, with 2mm rods in the 4 mm tubes?
Please keep me informed in concern of the shortkit
thnx; Nico
Post by: Fred on February 03, 2012, 13:07:31 PM
Yep, same for the elevator :D
Post by: Fred on February 14, 2012, 12:54:41 PM
Received this morning a mail from Brasil where the Quark will be flown during a aerobatic contest in the biggest slope event in Brasil :D
You can visit the website of this bunch of slopers from the other side of the Atlantic here : http://www.planabh.com.br/
Post by: joe on February 14, 2012, 14:28:31 PM
Post by: Richard Boyd on February 14, 2012, 15:24:36 PM
I have half a wing completed all but the aileron,
Tonite I am free and intend to do a little more work on my Quark.
We have big winds today and I wish I had of had my Quark ready to fly,
Good luck to the Brazil pilot :clap:
Richard
Post by: Richard Boyd on February 15, 2012, 11:46:21 AM
(http://www.gliderireland.net/forum/images/uploads/Richard%20Boyd/P1020808.JPG)
I have the lovely 45 throws for ailerons,
(http://www.gliderireland.net/forum/images/uploads/Richard%20Boyd/P1020809.JPG)
Post by: billscottni on February 15, 2012, 12:43:33 PM
Was that the 2nd, 3rd or 4th shipment of carbon :wink: :twisted:
Post by: Fred on March 24, 2012, 10:32:36 AM
First, and most important modification, is the elevator. As it is, it is working fine, but I found it not "sharp" enough, and compared to all the other controls, that felt a bit like a let down!
So now, the elevator have a "real" profile, and that should also shift a few grams at the back, and that's a lot at the front!
I'll start mine later, but here are the plans for the ones who wants to give it a go :
(http://www.gliderireland.net/forum/images/uploads/Fred/Quark%20elevator%20mod.PNG)
http://www.gliderireland.net/files/quark/Quark2Melevatormod-Plan.PDF
http://www.gliderireland.net/files/quark/Quark2Melevatormod-RIBS.PDF
It's a direct replacement of the one you already have, and should not take more than a few hours to make :D
While I was at it, I have changed the way ailerons are built. No more sanding! :D And finally, I have added 5cm to the nose to help with the CG. All that should shift around 300grs off the glider.
Anyway, thanks to Keith, I have 2 minutes of raw footage of the first launch of my Quark :D Roll after the first 5 seconds, no trim adjustement, a real pleasure to fly!
The only changes I made at the slope was to remove my expo from the elevator, that helped a lot in the sharpness division.
CG is as per JP, and on the back, only a very slight push is needed. I'll move my CofG back a bit for the next flights.
All in all, very very happy with this glider, love it in fact! Had a few reports from other builders, and all the same, good machine!
Ok, next? Well the plug for the original Quark is moving forward, and I hope to have the first fuselage done sometimes this summer :D
Post by: surfimp on March 25, 2012, 02:51:40 AM
Steve
Post by: Fred on March 31, 2012, 15:15:21 PM
2 minutes saved, only added title and shitty music!
You can see the elevator is a bit unprecised with the expo turned on, roll rate is appropriate, good energy retention. Hope to have another video with proper aerobatics in April!
[youtube]http://www.vimeo.com/moogaloop.swf?clip_id=39531080[/youtube]
Post by: mario on March 31, 2012, 17:36:00 PM
Post by: Fred on March 31, 2012, 19:30:43 PM
Prochains vols quand vous etes la :D
Post by: andrew wallace on March 31, 2012, 22:26:04 PM
Post by: Fred on April 06, 2012, 20:04:35 PM
Mine will be :D Ready to crash! (yeah, Ronan will try it, so we can fear the worse! Or the best, we don't know, that's why it's so exciting! :lol: )
Talking about the Quark, the updated plan is now on the Jivaro website (see the Quark page).
For the ones who don't read French, plans are here :
http://jivaro-models.org/quark_2m/page_quark_2m.htm
Enjoy! :D
Post by: GeorgeB on April 12, 2012, 12:13:36 PM
a/ How deep-giong into 10mm tube is the 8mm rod in the wing or what is the length of 8mm rods?
b/What servos do you use?
c/How is the canopy attached to the fuselage?
d/How are hinges solved?
Could you make a photo for your answers. Thank you very match.
Sorry, my English isn't good.
Regards
GeorgeB
Post by: Fred on April 12, 2012, 13:58:29 PM
Thanks, and welcome to the forum :D
I give you a quick answer now (sorry, I'm on the go to our annual meeting), but I can send you the photos next week (glider is packed up in the car).
Quote
a/ How deep-giong into 10mm tube is the 8mm rod in the wing or what is the length of 8mm rods?
Good question! :D I don't know, but I would say that on mine, the rod goes maybe 10cm in each tube. I think my total wing joiner lenght is around 30cm.
But no worries if you have more, or a bit less, this is not critical :D
Quote
b/What servos do you use?
I used mini servos for the wings with metal gears (MG14 from HobbyKing), and 2 standards servos for the Elevator / rudder (Futaba 3003 if I remember.. That's what I had in the spare box, but any mini or standard servos will do).
Everything is powered by a 5 cells nimh battery.
Quote
c/How is the canopy attached to the fuselage?
Mine... ermm.. With a piece of tape at the front and back... :oops: Original idea was to use magnets or rubber band
Quote
d/How are hinges solved?
Sorry George, I don't understand that one, but I guess you are talking about the hinges for the ailerons / rudder?
If so, I used Blenderm.
By the way, do you have the new set of plan available on the Jivaro website? :?: The ailerons construction is slightly different (no more sanding! :D )
Sorry, this is a bit short, but don't hesitate to let me know if you need more details!
I'll do a few detailled photos when I come back :D
Post by: Happy Days on April 12, 2012, 15:00:11 PM
As Fred said, here in Ireland we have a big Glide - In this weekend 8) so many pilots are busy getting their models ready, or travelling to the flight area. (Mt. Lienster in County Wexford.)
Regarding how to hinge the aileron, rudder, and elevator. There are many ways to hinge them. The way that Fred is saying is by cutting the bottom trailing edge of the aileron at 45 degrees as you can see in the next picture.
(http://www.gliderireland.net/forum/images/uploads/Happy%20Days/Aileron%20shampfer.jpg)
This will allow the aileron to move downward, as shown in the next picture.
(http://www.gliderireland.net/forum/images/uploads/Happy%20Days/down%20aileron.jpg)
The hinge itself is actually some very strong sticky tape that is stuck to the top of the aileron. Part is stuck to the top of the aileron and part is stuck to the top of the trailing edge of the wing. Look carefully and you will just see it in the next picture.
(http://www.gliderireland.net/forum/images/uploads/Happy%20Days/Diamond%20tape.jpg)(http://www.gliderireland.net/forum/images/uploads/Happy%20Days/Hinge%20line.jpg)
If you wanted to make a very strong hinge you could also use some more tape on the underside. So the aileron has tape on top and on the bottom as well.
Elevators can be hinged in the same way.
For the rudder……
Cut the trailing edge of the fin to a > shape. And the leading edge of the rudder to a < shape.
Place the rudder and fin close together > <and stick the tape on both sides. (They should be as close as possible so that they are touching >< )
You can clearly see the tape in the next pictures
(http://www.gliderireland.net/forum/images/uploads/Happy%20Days/rudder%20left.jpg)
(http://www.gliderireland.net/forum/images/uploads/Happy%20Days/rudder%20right.jpg)
There are many other ways to hinge controll surfaces George, but this is the easiest, cheapest and lightest way that I know of.
Oh, one more thing I must tell you George. By International Convention & Law you must show us some pictures of your finished model. (we like to see lots of pictures on this forum! :D)
Keith
Post by: GeorgeB on April 12, 2012, 15:34:55 PM
Yours answers satisfied me completely! I have one more question :D
I dont undertand what does Ribs Angle Gauge mean?
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/rag.jpg)
Once again thanks for your answers and enjoy yours annual meeting
:) We have here (in Prague) rainy days and forecast isn't better for weekend :cry:
Pictures of finished model and video from maiden flight I of course post here.
:wink:
Post by: Fred on April 12, 2012, 15:44:00 PM
Very quickly (just heard that the plane with the Frenchies just landed!)
The gauge is to give the correct angle to the ribs and ailerons' ribs.
The Piece N1 on the plan, is put on a flat surface, then the ribs for the ailerons glued to it.
As you can see on the plan, the ribs are not at a 90 degrees angle at their leading edge!
So you use this template to have them glued correctly if you see what I mean :?:
Hard to explain, I try to find a photo later :D
Post by: GeorgeB on April 12, 2012, 20:37:13 PM
Quote from: "Fred"
Hi George,
Very quickly (just heard that the plane with the Frenchies just landed!)
The gauge is to give the correct angle to the ribs and ailerons' ribs.
The Piece N1 on the plan, is put on a flat surface, then the ribs for the ailerons glued to it.
As you can see on the plan, the ribs are not at a 90 degrees angle at their leading edge!
So you use this template to have them glued correctly if you see what I mean :?:
Hard to explain, I try to find a photo later :D
sorry Fred, I'm reading your words again and again, but still don't understand :oops: maybe photo helps :)
Post by: GeorgeB on April 12, 2012, 20:46:31 PM
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/ask.jpg)
Post by: johnfireball on April 12, 2012, 22:10:16 PM
Hi George,
I believe these are the angles Fred is referring to.
John.
Post by: GeorgeB on April 12, 2012, 22:32:01 PM
Quote from: "johnfireball"
(http://www.gliderireland.net/forum/images/uploads/johnfireball/quark%20gauge.jpg)
Hi George,
I believe these are the angles Fred is referring to.
John.
Thanks a lot John, for your explaining. :)
Post by: Richard Boyd on April 13, 2012, 06:56:06 AM
Venue for her first flight will be Mt Leinster.
Sorry for no fotos, I am superstitiious :?:
I have the car packed and just finishing of charging batteries and then I will meet up with JP in Armagh for our journey to Mt. Leinster.
Hope to see you all soon, well 5 hrs time.
Richard
Post by: alibodin on April 16, 2012, 10:48:15 AM
Alistair
Post by: Richard Boyd on April 16, 2012, 17:27:43 PM
The big throws on the all moving elevator made for some extreme maneouvers yet on small movements it is sleek and very precise.. The Quark has everything I would ever want in an aerobatic glider. With ease it will perform the most demanding maneouvers and still retain air speed after exiting the maneouver. This is what makes the Quark head and shoulders above any other wooden aerobatic plane on the market that I have flown.
I think Quark has everything I need and accord to it producer the Quark with all the updates will be in production with in the next few weeks.
I have ordered another one and will gladly pay my hard earned cash for a great flying plane.
I am hoping Fred will post a few fotos of it flying, as I never took any fotos of it because of Friday the 13th.
Richard
Post by: alibodin on April 16, 2012, 17:46:47 PM
GLad to hear it went well and I look forward to any pictures.
I also look forward to getting a the short kit when they become available.
AListair
Post by: Fred on April 19, 2012, 21:27:01 PM
I concur! :D Richard's Quark first flight went very well! Lots of fun!
Tried it also, and Richard have demoniac throws on the elevator! Fun fun fun! :D
Here is a very short video, and the very first launch of Richard's Quark!
https://vimeo.com/39531080
Post by: Richard Boyd on April 20, 2012, 07:36:39 AM
For anyone that missed the event post we are having our second Slope Fest on the slopes of the Sperrins (Slieve Gallion) this Saturday and Sunday, everyone is welcome and the winds look promising so it will be fun fun fun and a hotdog or 2 maybe eaten lol
Post by: GeorgeB on May 01, 2012, 20:40:46 PM
small progress here :)
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/IMG_6090.jpg)
can somebody show me how rudder is connected with the servo?
and answer my questions on the picture below
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/ask.jpg)
thanks a lot
George
Post by: Fred on May 01, 2012, 20:58:18 PM
This is some good progress! :clap:
Ok, for the rudder, mine use closed loop cables, but you can use Robart snakes if you prefer, but I would personaly use cables. They exit by the holes at the end of the fuselage.
For your drawing, 90 degrees on the right : Yes
Don't mind the cuts (lines) that are on the 2 long pieces named N1. They are for the Laser Cut kit!
Now, talking about these 2 parts, I just realized that I did not name them right and placed on the plan! :oops:
If you look carefuly at the plan and the pieces, this is easy to find which one goes where : the notches on the ribs will match the correct piece if you see what I mean.
Material is : top one on the plan : 2mm plywood (that's the piece that is the ailerons LE)
Bottom one : 3mm plywood (that's the piece that go at the end of the ribs of the wings)
This bad drawing should shed some lights :D
(http://www.gliderireland.net/forum/images/uploads/Fred/quark%20ailes879872.JPG)
Let me know if there are still parts that are unclear.
Fred
Post by: GeorgeB on May 01, 2012, 21:39:17 PM
can you make a detailed photo of your tail and servos please :wink:
George
Quote from: "Fred"
Hi George,
This is some good progress! :clap:
Ok, for the rudder, mine use closed loop cables, but you can use Robart snakes if you prefer, but I would personaly use cables. They exit by the holes at the end of the fuselage.
For your drawing, 90 degrees on the right : Yes
Don't mind the cuts (lines) that are on the 2 long pieces named N1. They are for the Laser Cut kit!
Now, talking about these 2 parts, I just realized that I did not name them right and placed on the plan! :oops:
If you look carefuly at the plan and the pieces, this is easy to find which one goes where : the notches on the ribs will match the correct piece if you see what I mean.
Material is : top one on the plan : 2mm plywood (that's the piece that is the ailerons LE)
Bottom one : 3mm plywood (that's the piece that go at the end of the ribs of the wings)
This bad drawing should shed some lights :D
(http://www.gliderireland.net/forum/images/uploads/Fred/quark%20ailes879872.JPG)
Let me know if there are still parts that are unclear.
Fred
Post by: alibodin on May 01, 2012, 22:08:39 PM
You could to make things easier make the pieces A1 and A2 in one piece if you have long enough material. I think Fred has them in two parts so as to make the box of bits smaller.
AListair
ps Fred any news when the short kits will be available?
Post by: GeorgeB on May 02, 2012, 14:11:06 PM
Quote from: "alibodin"
George,
You could to make things easier make the pieces A1 and A2 in one piece if you have long enough material. I think Fred has them in two parts so as to make the box of bits smaller.
AListair
ps Fred any news when the short kits will be available?
thanks, but here they sell only 3 mm (190 x 387 mm) plywood :roll:
so I have to glue 3 pieces together :!:
Post by: GeorgeB on May 03, 2012, 13:23:16 PM
Quote from: "Fred"
Hi George,
Ok, for the rudder, mine use closed loop cables, but you can use Robart snakes if you prefer, but I would personaly use cables. They exit by the holes at the end of the fuselage.
Let me know if there are still parts that are unclear.
Fred
Hi Fred,
is something like this you meant about the rudder control?
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/nahon_lanka_1.gif)
Post by: Fred on May 03, 2012, 16:34:31 PM
This is exactly that. But no need to have all the stuff in the middle..
I'll take a photo of mine tonight (sorry, forgot yesterday :oops: ).
Takes litterally 5 minutes to install
Post by: GeorgeB on May 03, 2012, 18:31:35 PM
Quote from: "Fred"
Hi George,
This is exactly that. But no need to have all the stuff in the middle..
I'll take a photo of mine tonight (sorry, forgot yesterday :oops: ).
Takes litterally 5 minutes to install
Thanks a lot Fred , I'm curious :wink:
Post by: GeorgeB on May 03, 2012, 21:52:53 PM
for what is this?
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/ask1.jpg)
and this?
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/ask3.jpg)
and I dont understand how elevators are fixed to fuselage?
They are plant into 3mm rods, and are they glued to them?
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/ask2.jpg)
sorry for my maybe stupid questions :oops:
Post by: Richard Boyd on May 04, 2012, 08:07:08 AM
Second foto is as described, servo mounting plates for your aileron servo.
I have altered my elevator mount and am currently testing it , I have massive throws but for normal flying mount your elevator as standard.
It is all very basic and you will learn from your mistakes, I make plenty of them :!:
Post by: Fred on May 04, 2012, 10:53:03 AM
As Richard says :D Look carefully at the plan, and you will see what and where all these pieces are going.
For the elevator bellcrank, it is 4mm tube for the front one, and 3mm rod for the one at the back (it's on the plan if you look at the bellcrank)
The front tube is glued on the side of the fuselage, using the T1 pieces as support (extra gluing surface). DO NOT GLUE the tube to the bellcrank, only on the side of the fuselage!
Here are the photos for my rudder :
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060837.JPG)
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060839.JPG)
(http://www.gliderireland.net/forum/images/uploads/Fred/P1060842.JPG)
Fred
Post by: GeorgeB on May 04, 2012, 22:02:10 PM
Still don't understand what for are two holes on ST1 servo tray I highlighted by red color? On second picture highlighted by green color are points for screws whitch fixed servo tray with servo cover I suppose (I thought that they are glued together, therefore my question). Because main wings are fixed by hooks so my last question was how elevators wings are fixed to fuselage, if they only put on 3mm rods or ?
My main problem now is where to get 10mm tube and 8mm rod which will match to each other, because in local hobby markets they have only china sh.t which don't match together :!:
But I don't give up, Quark must take the air :D
Once again , thank you.
Post by: Fred on May 05, 2012, 23:32:21 PM
Sorry, quick reply as it is a bit late, I'll take photos tomorrow to answer your questions.
Basically, don't worry about the holes in T1, this is only to pass your servo cables, that have no other functions.
In green, yes, don't glue! Use screws, as this will allow you to unscrew the servo tray if you need to do a bit of maintenance.
I feel your pain for the tubes / rod... My tube was 7mm inside, and had 8mm rods! :!: :!: Sanding, re-drilling of the tube etc etc :!: :!: :!:
Post by: Richard Boyd on May 06, 2012, 07:48:06 AM
I think there are 10 peices left in the workshop.
I am unsure of the exact price, but think the 10mm carbon tube cost me £8 per 1m lenght.
Post by: GeorgeB on May 06, 2012, 08:08:03 AM
Quote from: "Fred"
Hi George,
Sorry, quick reply as it is a bit late, I'll take photos tomorrow to answer your questions.
Basically, don't worry about the holes in T1, this is only to pass your servo cables, that have no other functions.
In green, yes, don't glue! Use screws, as this will allow you to unscrew the servo tray if you need to do a bit of maintenance.
I feel your pain for the tubes / rod... My tube was 7mm inside, and had 8mm rods! :!: :!: Sanding, re-drilling of the tube etc etc :!: :!: :!:
I wanted to avoid sanding, but I see there is no other way :!:
Thank you Fred
Post by: GeorgeB on May 06, 2012, 08:13:41 AM
Quote from: "Richard Boyd"
Hi George, I have 10mm tube with 8mm I/D and alloy 8mm tube for the wing joiner.
I think there are 10 peices left in the workshop.
I am unsure of the exact price, but think the 10mm carbon tube cost me £8 per 1m lenght.
I appreciate your offer Richard, but I'll try to sand a little carbon rod like Fred said. Many thanks.
Post by: Richard Boyd on May 08, 2012, 11:08:54 AM
[youtube]http://www.youtube.com/v/Pvm43zS27XA&feature=g-all-u[/youtube]
YOU CAN JOIN US AND FLY HERE AT OUR WEEKEND TRIP TO RATHLIN ISLAND !!!!!!!
Post by: Fred on May 08, 2012, 21:12:14 PM
Good to see the Micro Quark flying, looking good in that wind1 :D
I'll see anyway, I might consider producing that one too :D
Any words from Denis? Did he flew his model? :?:
Post by: Richard Boyd on May 09, 2012, 07:27:51 AM
I hope to meet up with him this weekend at the Banbridge Model clubs glider tow fly-in on Saturday.
I will keep you posted.
Post by: mario on May 12, 2012, 19:04:16 PM
(http://www.gliderireland.net/forum/images/uploads/mario/IMGP1277.jpg)
Post by: Richard Boyd on May 13, 2012, 08:06:31 AM
Post by: Fred on May 14, 2012, 11:54:15 AM
Quote from: "Richard Boyd"
Hi Fred, Denis had to go into hospital and is now out and recovering, he intends to get the mini Quark in the air as soon as he is in better health and the temperature rises alittle on the mountain.
I hope to meet up with him this weekend at the Banbridge Model clubs glider tow fly-in on Saturday.
I will keep you posted.
Hey Richard,
Sorry to hear that! Hope he make a good recovery and go back to the slopes soon!
Sorry for the long silence, mad at work + took me a day 1/2 to recover from Friday night! :lol: :lol: And Chicken Pox all over at home too!
Anyway, nice one Ronan! :clap: :clap:
Post by: GeorgeB on May 15, 2012, 22:20:42 PM
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/IMG_6093.jpg)
I have a question about tubes in the fuselage. On yours it look like aluminium
tubes. Can I use carbon tube(same one as in wings) or it is necessary use aluminium?
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/P1060839.jpg)
thank you, George
Post by: mario on May 16, 2012, 01:09:42 AM
Post by: Richard Boyd on May 16, 2012, 07:32:32 AM
Either carbon or alloy is good !
Post by: GeorgeB on May 16, 2012, 08:27:13 AM
Quote from: "mario"
I use carbon for my quark
thanks Mario, I'll use carbon too.
Do you have some video of your Quark flying over ocean?
G.
Post by: GeorgeB on May 16, 2012, 08:34:37 AM
Quote from: "Richard Boyd"
Hi George, really nice bit of workmanship, keep us posted on your build
Either carbon or alloy is good !
thank you Richard, by the way I bought tubes and rod and they match together without any problem :shock: Anyway thanks again you offered yours :clap:
And yes I'll post my progress :wink:
G
Post by: Fred on May 16, 2012, 08:49:20 AM
Really looking good! :clap:
Yeah, I used aluminium (I use scraps of stuff I have :wink: ), but carbone will do it fine too :D
Very good build so far :clap: :clap:
Post by: GeorgeB on May 16, 2012, 09:01:16 AM
Quote from: "Fred"
Hi George,
Really looking good! :clap:
Yeah, I used aluminium (I use scraps of stuff I have :wink: ), but carbone will do it fine too :D
Very good build so far :clap: :clap:
Thanks Fred, I spend almost my every free time to build Quark, but still a lot of work in front of me :)
Post by: mario on May 16, 2012, 09:33:40 AM
Post by: miki.r on May 24, 2012, 15:26:10 PM
I plan to start my Quark 2M build this weekend becasue i want to try something new on the slope...
The only thing i am not sure about is which servos to choose. The Ailerons are really huge (could be a problem for the standard HS81 with higher speeds?) and as this will be my first aerobat I don't know exactly what is more important - speed, torque, precision...? For my slope racers I never had to think about anything, the slim wing servos like HS125 were the only ones that would fit in.
So which servos do you use in your slope aerobats and what would you recommend?
Thank you
Post by: Fred on May 24, 2012, 20:12:21 PM
Welcome to the forum :D
For servos, everything is important (speed, torque etc), but maybe one of the most important, is the servo capability to come back to the exact neutral position each time (can't remember the English word for that (and I will not try in German! :D ))
In my case, I use 2 standard servos for the Elevator / Rudder, and 2 MG14 at the ailerons, everything hooked up to a 6v battery for speed and added torque.
And this is working just fine for me (went agricultural and on the cheap! :D ), but maybe others will jump in and tells you what work for them :D
In the mean time, don't hesitate if you have any questions.
Fred
Post by: alibodin on May 24, 2012, 20:14:18 PM
Any news when the short kit for the Quark will be available?
Alistair
Post by: Fred on May 24, 2012, 20:19:44 PM
Yep, files are ready, and they will be tested on Saturday!
If all goes well, they should be online next week hopefully! (That's if I receive the boxes for the kits on Monday, fingers crossed!)
The Quark should be even lighter! (most of the plywood for the wing etc, replaced by Balsa, lightning holes in the fuselage etc) to make it even better! :D
Post by: alibodin on May 24, 2012, 23:25:59 PM
Is there a list of parts required to complete the kit?
Alistair
Post by: Richard Boyd on May 25, 2012, 07:18:21 AM
3off 10mmo/d,8mm i/d carbon tubing wing
1off 8mm o/d carbon or alloy tube for wing joiner(needs to be snug fit with the above)
1off 4mmo/dx 3mm i/d tube for elevator
1off 3mm solid carbon for elevator joiner
Closed loop wire for rudder aprox 2.5m should be enough, plus use loop adjusters for fine tuning.
Elevator push rod, I used balsa square with light fiber glass to make ridjet and piano wire z bends to servo.
Control horns x 4 good quality
Servos, any good standard servo for elevator+ rudder (6v servos is good)
for wing servo you are restricted to slimmer servo , 14mm deep servo should be snug fit as far as I remember.
2 x 700mm servo extension leads for aileron servos
The rest is just general items like covering etc. and radio gear of your choice.
Post by: miki.r on May 25, 2012, 15:00:27 PM
I will be building mine with balsa ribs too (only the 3 inner ribs will be plywood for more strenght around the wing joiner area).I can't wait building with balsa again, thats what i really missed when flying and repairing molded models....
And now i'm off to the hobby shop! :D
Post by: Fred on May 25, 2012, 15:43:54 PM
No problem at all, and don't hesitate if you have any questions! :D
And most important, have fun with the build! You'll see, it is quick and easy to build :D
Post by: miki.r on May 26, 2012, 12:45:38 PM
i already started the fuse - build is really simple compared to some other projects i built. The only thing i was thinking about was top and bottom sheeting of the fuse and balsa grain direction. Will the construction be more rigid with cross or straight grain balsa? In the curved front sections cross grain would also be much easier to bend...
Post by: erwan on May 26, 2012, 19:06:12 PM
Today, i test Ronan's Quark ..
It's very funny and not very difficult to pilot.
I think to order a short kit for september :D
Post by: Fred on May 26, 2012, 20:20:04 PM
Quote from: "miki.r"
Hi again,
i already started the fuse - build is really simple compared to some other projects i built. The only thing i was thinking about was top and bottom sheeting of the fuse and balsa grain direction. Will the construction be more rigid with cross or straight grain balsa? In the curved front sections cross grain would also be much easier to bend...
Very good Miki! :clap:
You'll see, dead easy and quick to build! :D
You are right for the sheeting, better to do it this way.
By the way, if you want a more "rounded" fuselage, you can replace the 5x5 strips by 10x10 (square or triangle), that will give you more material to sand.
But that doesn't matter much, just a question of taste :D
And don't hesitate to send us photos of your build! :D
Post by: Fred on May 26, 2012, 20:25:17 PM
Quote from: "erwan"
Hello
Today, i test Ronan's Quark ..
It's very funny and not very difficult to pilot.
I think to order a short kit for september :D
Howdy Erwan :D
Yeah, that's the thing, everybody who tried the Quark, want one! :D
So, tested all the aerobatic manoeuvers in the book? :D
Post by: erwan on May 26, 2012, 21:23:09 PM
Post by: alibodin on May 26, 2012, 22:51:45 PM
Thank you for the extra componets list. Just need a kit now.
AListair
Post by: miki.r on May 30, 2012, 15:09:44 PM
here are the first pictures of my build - all goes together really well. Fuse is not rounded yet. The elevator turned out really good, 44gr both halves together. I built the rudder with 3mm parts sheeted with 1mm, it is really stiff now but still very light.
The most annoying part of the build was sanding down the 3mm carbon rods to fit into the tubes - the inner diameter was 2,8 instead of 3mm :!:
Waiting for the 8mm carbon tubes now to start the wings...
(http://www.gliderireland.net/forum/images/uploads/miki.r/P1170196.JPG)
(http://www.gliderireland.net/forum/images/uploads/miki.r/P1170197.JPG)
(http://www.gliderireland.net/forum/images/uploads/miki.r/P1170198.JPG)
Post by: Richard Boyd on May 31, 2012, 07:11:32 AM
It is very satisfying to see good workmanship.
Post by: Fred on June 01, 2012, 10:06:47 AM
Well, you are not wasting your time! This thing is half built already! :clap:
Quick question for the elevator, did you build them with ribs etc as per the latest plan?
44grs for the 2 halves is very good :clap: Looks like you will have the lightest Quark made so far :D
Post by: miki.r on June 01, 2012, 13:13:14 PM
I've got one wing almost done (needs only some sanding at the LE and wingtip), when i put it on the scale I couldnt believe it: 225g with one servo and fully sheeted! Really very light, the fuse with the stabs comes in at ~430g. I didnt really try to build light, but it comes together very well. AUW around 1,2kg should be possible (I will see how much lead will be necessary...)
I hope to have it done until next weekend for my trip to Slovakia - it would be great to maiden it at Donovaly, a great slope!
I'll post some more pictures when I come home...
Post by: Fred on June 01, 2012, 13:33:12 PM
Yeah, the plan update should bring you to the 1.2Kgs target easy (between 5 and 600 grs lighter than mine for example).
Looking foward to hear about your test flights :D
Post by: miki.r on June 03, 2012, 08:23:09 AM
Today is sanding of the left wing and the fuse (with the nose block :shock: )...
Altogether a really great design and easy build, but you have to be careful and take your time for some details to get a perfect result. With those huge moving surfaces warping could screw up all the work... From my experience aerobatic airplanes need the most precision to fly well.
(http://www.gliderireland.net/forum/images/uploads/miki.r/P1170201.JPG)
(http://www.gliderireland.net/forum/images/uploads/miki.r/P1170210.JPG)
(http://www.gliderireland.net/forum/images/uploads/miki.r/P1170211.JPG)
(http://www.gliderireland.net/forum/images/uploads/miki.r/P1170209.JPG)
Post by: Fred on June 03, 2012, 18:53:52 PM
Record time build, and done very nicely at that!
So, first flights next week end? :D
Post by: Richard Boyd on June 04, 2012, 06:11:11 AM
What colour will you cover this plane ?
Richard
Post by: miki.r on June 04, 2012, 12:33:16 PM
Post by: miki.r on June 05, 2012, 06:56:45 AM
I've got a few questions concerning the setup.
Is 30mm up and down for the ailerons enough (as per plans)? I need to know if I have to sand the gap between wing and aileron wider, I get exactly 30mm down now...
And how do you set up your transmitter for the Quark - 4 axis, 3 axis like F3F, how much aileron up/down for thermal and speed flight...?
Thanks
Post by: Richard Boyd on June 05, 2012, 08:23:42 AM
Use duel rates and reduce your throws for light air flying.
I think you will have no problem setting up your plane if your building is anything to go by.
I like the colour scheme you ordered. this will be super cool !
Post by: Fred on June 05, 2012, 12:08:54 PM
I don't know what I have on mine for throws. The maximum I could get, but 30 / 40 is about right. No differential of course.
As for mixes, you can use snap flaps. I don't really see the need on mine (have the mix setup, but never used it) as the SB profile don't really need it. But That can be tried (I'll give it a shot anyway, just to see what can be improved).
Note that my Quark fly inverted with almost no push on the stick (maybe 1 or 2mm, just enough to remember I fly inverted :lol: )
For thermal, you can add 2mm camber, but keep in mind that the sb profile already have camber (1.26%) so is pretty decent in light condition s as is.
Anyway, I am a bad example for mixes etc, as I usually never use them.
Talking about the Quark, a guy is doing it with splitted ailerons for flaps etc. I'll keep you updated of the progress :D
Post by: miki.r on June 12, 2012, 10:33:24 AM
Although I didnt finish it before the weekend it was no problem - the weather was very british in Donovaly so absolutely no flying! Instead I took my time to get a good covering job and I am very pleased with the result (but it was three evenings work to get it all done - covering can be very time consuming... :?: ).
AUW is somewhere around 1,4kg, dont know where all the weight came from, but I also needed more lead than initially assumed... But for a fully sheeted wing and a sheeted stab it is OK, 1,2kg should be possible if desired. As I don't really like to fly in light wind I plan to add some kind of ballast to get it up to 1,8kg for the heavier days. And the stabs and wings/ailerons are really huge...!
Waiting for good wind and weather now...
Fred: please keep us informed about the flaps/ailerons version...
(http://www.gliderireland.net/forum/images/uploads/miki.r/4.JPG)
(http://www.gliderireland.net/forum/images/uploads/miki.r/5.JPG)
(http://www.gliderireland.net/forum/images/uploads/miki.r/6.JPG)
Post by: Fred on June 12, 2012, 11:48:55 AM
Very very nice Miki, great job on the finishing!
At 1.4Kgs, you are still way lighter than mine. Mine fly without any problem in light winds. The ballast option is a good idea, as I like an aerobatic glider to be not too light. More inertia on the vertical moves :D
Fingers crossed with the maiden flight, and really hope you enjoy it! :D
I'll keep you updated on the full house Quark as soonn as I have some news :D
PS : George, how is your Quark build going? :D
Post by: alibodin on June 13, 2012, 19:41:49 PM
That model does indeed look beautiful. You have done an excellent job in the covering and building. Makes me impatient to start mine when the kit is available. What servos did you use in yours? Hope the maiden goes well.
Alistair
Post by: miki.r on June 13, 2012, 21:50:12 PM
I've got HS85 MG on the ailerons and Spektrum A4000 for rudder and elevator.
Weather forecast for the weekend looks promising... :twisted:
Post by: Richard Boyd on June 14, 2012, 07:19:35 AM
Weather is still not good in the North of Ireland so flying is a no no this weekend.
Post by: Frederic on June 15, 2012, 09:46:54 AM
I am pleased to present a glider directly inspired Quark2m but profoundly enhanced: The Quouèrk, by HollandModels (Correzian traditional factory). The Quouèrk (pronounced like the cry of a hen that crushed) kit is a fully cut by water jet.
The kit:
(http://www.gliderireland.net/forum/images/uploads/Frederic/quouerk1.jpg)
CN with the system of the nozzle water jet cutting:
(http://www.gliderireland.net/forum/images/uploads/Frederic/cn%20G%20d%27eau.jpg)
As you can see from the picture, the water jet cutting leaves a blue mark on the wood that fades after a few hours.
(http://www.gliderireland.net/forum/images/uploads/Frederic/quouerk2.jpg)
We are doing tests CNC (Cat Natural Cutting) that appear to be very promising ... Then we would change the name of the glider: Quouirk ... (like a cat being crushed)
(http://www.gliderireland.net/forum/images/uploads/Frederic/quouerk3.jpg)
Soon, the beginning of the construction.
Note: You can not sell the kit for now, it is forbidden to send any material from the psychiatric hospital.
Big Kiss !
Frédéric
Post by: Fred on June 15, 2012, 11:18:57 AM
Post of the year!! :clap: :clap:
Very nice Frederic!! Love the waterjet cutter :lol:
Post by: mario on June 15, 2012, 12:09:42 PM
Post by: orionis on June 15, 2012, 18:49:29 PM
Post by: erwan on June 16, 2012, 09:15:21 AM
Post by: Frederic on June 17, 2012, 21:44:54 PM
Today, we tried beer cutting, after water cutting at the flying club ... it does not work well, it foam too, but it makes the children laugh...
(http://www.gliderireland.net/forum/images/uploads/Frederic/quouerk5.jpg)
we start building our glider. In two days, our fuselages are almost complete
(http://www.gliderireland.net/forum/images/uploads/Frederic/quouerk4.jpg)
big kisses
Frédéric
Post by: miki.r on June 21, 2012, 07:18:59 AM
i maidened my Quark last weekend and it flies great! Well, I started with the CG a bit too far back - this was not really funny, but with a bit more lead in the nose the Quark flies just perfect. Inverted loops are great, and rolls are incredibly fast with 35mm on the ailerons.
The only problem I found was the speed limit. Yesterday flying in 14m/s wind with strong thermal activity was really fun, the plane also accelerates very well, but suddenly the rudder+elevator caught a really bad flutter. The lightening holes in the tail of the fuse make the structure too soft and the whole tail starts twisting. so no fast flying with those holes. I will reinforce the holes with some 3x0,5mm CF rods glued across.
The Quark makes a beautiful whistle on fast aileron rolls, while being absolutely quiet on straight flight, really great fun! I will post some pictures and maybe a vid too as soon as i get them...
Post by: Richard Boyd on June 21, 2012, 07:32:53 AM
I too am awaiting good weather to get my video shot.
Rain again for the next few days and no forcast of any descent winds. I donot remember weather like this, global warming has no effect on Ireland lol
Post by: Fred on June 22, 2012, 12:05:18 PM
Glad you enjoyed it, and I hope this glider will give you many hours of flying plaisure!
For the flutter, strange, never had the case (or at least heard of it). I would have bet that the ailerons would flutter first :P
I can't try on mine (no lightning holes on my fuselage), but I have to admit that I never pushed the glider hard speed wise (just some fast low pass, that's it), as I have to say that it was not intended for pure speed, but rather to keep constant speed during an aerobatic display (hence the good acceleration, thanks to the profile etc :D )
I have checked my fuselage last night, and tried to twist it by hand, but that was almost impossible. With the openings at the back of the fuselage, that should be also hard to twist :?: (mainly because of the 4 strips that act as a beam, supported by the former at the middle :?: ).
Maybe some play in the elevator axle because of the carbone tube/rod?
Anyway, interresting! I guess I'll have to build a light fuselage to find out!! :D :D
Please, post photos and videos of the first flight, really looking forward to it :D
Post by: alibodin on June 24, 2012, 12:28:28 PM
What battery do people use for theirs. Ideally I want 5 cell for 6volts. I have a 5 cell C type but it looks like it will not easily fit and be removeable.
Also what servos do people use will Hitec 85MG be OK for ailerons and Hitec 325HB for Rudder/ Elevator?
Thank you for your help.
Alistair
Post by: Richard Boyd on June 24, 2012, 15:19:37 PM
Post by: alibodin on June 24, 2012, 15:33:28 PM
Alistair
Post by: Richard Boyd on June 24, 2012, 15:53:16 PM
Post by: alibodin on June 24, 2012, 15:55:34 PM
I will take a look and see what batteries I can find.
Alistair
Post by: Richard Boyd on June 24, 2012, 17:46:36 PM
Let us all know how your getting on during your build and upload a few fotos as you go along.
Post by: alibodin on June 24, 2012, 18:41:08 PM
The Fuz is different to the website, it is 3 pieces, front top and bottom and then a rear section. The balsa sheets for the fuz are below.
(http://www.gliderireland.net/forum/images/uploads/alibodin/Fuz_bits_sm.jpg)
Hope to make a start soon.
Alistair
Post by: Fred on June 25, 2012, 16:36:14 PM
Glad you received the kit :D Hope you enjoy the build!
For the battery, on mine, I have a 5 cells 2200Mah, in 3+2 configuration.
As Richard said, the "New" Quark have a longer nose, so you should be able to fit the same, or bigger battery (longer as its configuration, like side by side cells etc).
To me, your servo choice is fine for the Quark :)
Post by: alibodin on June 25, 2012, 16:58:18 PM
(http://www.gliderireland.net/forum/images/uploads/alibodin/MiniQUARK.jpg)
Alistair
Post by: Fred on June 25, 2012, 17:28:21 PM
That allow you to choose your colour scheme! :D
And careful, your wing is the wrong way around :D
Actually, never tried, but might fly (fast!) with a bit of lead on the nose :?:
Anyway, something to bring with you in the office :D
Post by: alibodin on June 25, 2012, 19:49:21 PM
Fin built, using jig from fuselage of Grunau Baby to ensure straight edge. Had to add some shims of 1mm balsa to get nice tight fit for the horizontal part of the fin.
(http://www.gliderireland.net/forum/images/uploads/alibodin/Fin.jpg)
Rudder also built though I had to make my own leading and trailing edges.
(http://www.gliderireland.net/forum/images/uploads/alibodin/Rudder.jpg)
Also glued up the fuselage sides. Comes in 3 bits, fits together nicely.
(http://www.gliderireland.net/forum/images/uploads/alibodin/FuzSides.jpg)
Nearly done all I can as I am waiting for materials to arrive.
Alistair
Post by: alibodin on June 26, 2012, 14:40:56 PM
Some questions if I may?
Rhetorical: Why when I buy carbon tube and rod are the rods slightly too big to fit?
How does one glue the carbon fibre tubes to the wing ribs for wing and tailplane. There is a small gap. Tack then with thin cyno and the expoxy or thick cyno?
Also how does one cut Carbon fibre and sand it down, I have heard it is nasty stuff. First time to use carbon fibre.
How long does the 8mm rod need to be for the main wing joiner, I guess the rest of the 1 metre after cutting of the bit for the rear wing joiner?
Thank you for any help on the above,
On with the fuselage now!
Alistair
Post by: Richard Boyd on June 26, 2012, 14:53:37 PM
tack and then use 5min epoxy for wing ribs to carbon,
Use fine emery sanding paper to sand carbon and I cut with fine blade balsa saw, using pull back strokes.
It is very difficult to get accurate carbon, you have to pay extra cash for this, cheap chineese carbon is not accurate and also alot is not potruded carbon and is only carbon dust and glue mixed.
Post by: alibodin on June 26, 2012, 18:01:23 PM
Thank you for confirming my suspicions.
Added all the 5mm (3/16) stringers to the fuselage sides and the tail plane ply.
(http://www.gliderireland.net/forum/images/uploads/alibodin/Fuzwithstringers.jpg)
Marked them so to avoid building two sides the same, whcih I have done before.
Need to modify ST1 and ST2 for my servos and a switch as well.
AListair
Post by: Richard Boyd on June 26, 2012, 18:09:04 PM
Post by: alibodin on June 26, 2012, 22:11:57 PM
Having sanding the 3mm carbon rod to fit the tube I did the all moving tailplane AMT.
(http://www.gliderireland.net/forum/images/uploads/alibodin/AMT_1.jpg)
Here they are with the epoxy drying. Glad is a symetrical section as both can be built the same way. On second one chamfered the leading edge of the ribs to fit the leading edge when added.
Also made the servo holes in ST1 and ST2 bigger for my servos. Added wood for screws to hold servos in and also a switch as well.
Need to add some holes for cable tie to secure the RX and another hole for the arial tube.
Alistair
Post by: alibodin on June 27, 2012, 14:04:31 PM
(http://www.gliderireland.net/forum/images/uploads/alibodin/Fuz1.jpg)
As the nose is a little narrower I will add that former later and hopefully ensure both sides at the front bend equally for a nice symetrical fueslage. Same applies to the rear as well. I will pull it in to the last former hoping for a nice symetrical fuselage.
Because the Carbon tubes are not too accurate, the holes in the AMT horn are too large. So lets make another one. Got some of my 3mm ply and it is not as good as the ply in the kit. So only big enough piece of ply with the strength in the correct direction was the rib gauge. So made a new rib guage with my own ply, then cut the rib guage to make a new AMT horn. Hopefully means the holes will be a nice tight fit to minimise slop.
(http://www.gliderireland.net/forum/images/uploads/alibodin/AMT%20Horn.jpg)
Now measure up and cut some carbon tube and rod for the wings, ohh what fun.
AListair
Post by: alibodin on June 27, 2012, 18:21:47 PM
(http://www.gliderireland.net/forum/images/uploads/alibodin/StbWing.jpg)
Need to add the expoxy to ribs and carbon fibre.
WHOOPS :oops: :oops: :oops:
Looked at rear of fuselage and all is not fine.
(http://www.gliderireland.net/forum/images/uploads/alibodin/Whoops.jpg)
Things do not line up. It will line up with pressure, so I may line it up and then brush rear of fuz with water to hopefully remove the twist. Then glue it up. I always seem to have problems building straight fuselages.
Alistair
Post by: Richard Boyd on June 28, 2012, 06:55:22 AM
I have a small twist in my Quark , not the the glider at fault but me the builder lol. Good news is that it still flies straight and true, I would need to make myself a jig for building.
I am enjoying your build
Post by: Happy Days on June 28, 2012, 08:38:39 AM
This really is not good enough!! I want to see some action, I want to see these planes flying. :D So come along gentlemen, show us how they fly!
(Richard, can you get your model to do a blender? 8) Ask someone to film it for you and stick the vid up on the forum,……there’s a good fellow. :P )
Yours frustrated,
Keith
Post by: Richard Boyd on June 28, 2012, 09:38:24 AM
I have a few weeks to prepare for my trip to fly in Lithuania F3K EURO TOUR competition and I can not even get out to practise.
I am in big problem as I never have flown in this type of competition before so last place will be mine lol.
If you donot believe about weather then look at yesterdays,
BBC NI Iplayer link,
http://www.bbc.co.uk/news/uk-northern-ireland-18618973
Post by: Happy Days on June 28, 2012, 09:58:47 AM
Good luck in your forthcoming contest Richard and remember, “He who dares, wins.”
K.
Post by: Richard Boyd on June 28, 2012, 10:07:29 AM
Here is first flight with mine, elevator is twitchie cause I had the elevator on zero expo, the switch got knocked on my way to the slope.
http://vimeo.com/40676722
Post by: Happy Days on June 28, 2012, 20:27:15 PM
Certainly seems agile enough, tried any back flips? I didn't see any footage of how fast she rolls? It would be relative to speed I know but I'd be interested to see just how fast and sharp she can roll :?:
K.
Post by: Richard Boyd on June 29, 2012, 07:23:51 AM
Just build it will super throws and use good quality fast servos and you will have what you ask for. :clap:
Post by: alibodin on June 29, 2012, 20:36:10 PM
Note. The fuz can be twisted though it does require some force.
Added top and bottom sheeting and did the canopy. I will add nose later once I have a rough idea of how much lead I require to balance.
(http://www.gliderireland.net/forum/images/uploads/alibodin/Fuz2.jpg)
Joining the two halves of the aileron leading edge was tricky. Decided to use balsa dust to make a nice fit and wick in cyno. Seems to have worked fine. Add the ribs using the rib guage took a while.
(http://www.gliderireland.net/forum/images/uploads/alibodin/Ailerons1.jpg)
Seeeting to be done then shaping.
Fin and ruder seem quite fragile built as per plan, considering sheeting with 1/32 balsa to add some strength. Thoughts???
Sheeted one half of the tailplane. Took a while but I think worth the effort. WOuld have been quicker to completely sheet it.
(http://www.gliderireland.net/forum/images/uploads/alibodin/Tailplane1.jpg)
Think it looks OK and weighs in at 19.5 grams.
Alistair
Post by: Richard Boyd on June 30, 2012, 12:43:03 PM
I tried to keep the rudder as light as possible, it saves adding unwanted weight to the nose.
I built my rudder different to the plan and it was 9.8g with covering and control horn, the way the rudder is mounted on the quark means it does not contact the ground when landing in rough terrain. So keep it light.
Post by: alibodin on June 30, 2012, 21:19:12 PM
Decided to do wing as per plan rather than fully sheet, mainly because I can not join sheets together. Also even without any sheeting wing is very strong and does not twist.
Seems stock wood for sheeting is 3 inches as that is the size of the D sheeting. The sheeting at the rear is 3/4 inch, which is one sheet 3 inch cut in 4! Clever design Fred!
Here is the port wing.
(http://www.gliderireland.net/forum/images/uploads/alibodin/portwing.jpg)
Had fun with servo wire. Taped it up nicely at the root and then sanded root smooth and discovered I had sanded through the servo cable :oops: :oops:
Took it out and re did the cable. Fortuntaley the ribs have holes in so I could drop a thread with a small eight through the holes and then pull the servo lead through.
Another wing, ailerons and some sanding, then some covering to do, secure aileron servo to plate and then set up.
Alistair
Post by: mario on July 01, 2012, 10:24:54 AM
Post by: erwan on July 02, 2012, 09:12:48 AM
I receive for my wedding a short kit of Quark . The building start as soon as possible. :D
Post by: rogallo on July 02, 2012, 09:33:52 AM
Maybe the may hours of peace and quiet while you are building it.
Best wishes Ralph
Post by: alibodin on July 03, 2012, 22:33:39 PM
Added a frame around the servo plate and sanded it down so the servo plate was a nice snug fit.
(http://www.gliderireland.net/forum/images/uploads/alibodin/AileronPlates.jpg)
Repeat for other plate. Cut some wood and glued to plate for servos to mount on to.
Ailerons next!
Alistair
Post by: Richard Boyd on July 04, 2012, 08:14:31 AM
He had an aileron servo failure when I flew with him on Mt Leinster and he had the servo changed in a matter of minutes. I thought it was a great idea especially if your landing site has a rough landing area.
Post by: alibodin on July 04, 2012, 18:03:11 PM
(http://www.gliderireland.net/forum/images/uploads/alibodin/AileronPlatesServo.jpg)
Will add some fibre glass and epoxy to strenthen the wood on the plates.
Alistair
Post by: GeorgeB on July 05, 2012, 09:43:52 AM
And I have a question:
What is a shape the ends(tips ?) of wings, I mean from front view.
Plese show me it on photos.
Thank you.
George
Post by: GeorgeB on July 05, 2012, 15:48:22 PM
Thank you.
G
Post by: alibodin on July 05, 2012, 18:01:23 PM
Your Quark is looking good.
I am about to do my horn and will take pictures later. The horn will be 1.5mm ply and glued to the aileron spar and top sheet at the front of the aileron. I will then add block balsa either side glued to the horn, top aileron sheet and leading edge of aileron. Finally I will add the front sheeting either side of the horn.
Here is a picture that hopeully clarifies what I am doing.
(http://www.gliderireland.net/forum/images/uploads/alibodin/aileronhorn.jpg)
Hope it helps.
Alistair
Post by: GeorgeB on July 05, 2012, 20:26:45 PM
Quote from: "alibodin"
G,
Your Quark is looking good.
I am about to do my horn and will take pictures later. The horn will be 1.5mm ply and glued to the aileron spar and top sheet at the front of the aileron. I will then add block balsa either side glued to the horn, top aileron sheet and leading edge of aileron. Finally I will add the front sheeting either side of the horn.
Here is a picture that hopeully clarifies what I am doing.
Hope it helps.
Alistair
Thanks a lot Alistair, I'll do it same way!
And about the shape of wings tips?
George
Post by: alibodin on July 05, 2012, 22:03:29 PM
(http://www.gliderireland.net/forum/images/uploads/alibodin/aileronhorndone.jpg)
Need to add cap strips to aileron.
I have yet to do my wing tips. From pictures I have seen they are not shaped as they are flat at end of wing. There may be a little rounding of the leading edge at the wing tip.
I actually plan to add wing tips so as to protect the aileron for the ocassional cartwheel landing I do. :) Also some protection for transporting as well.
Alistair
Post by: alibodin on July 06, 2012, 20:59:01 PM
(http://www.gliderireland.net/forum/images/uploads/alibodin/ailerondone.jpg)
On with the port aileron.
Questions if I may.
1) Centre of Gravity. On the plan it is 5mm in front of the front spar. Is that a good starting point or an ideal? I want to balance the model with lead in the nose at the most rear COG before covering, then add some easily removeable lead for first few flights.
2) What is the angle for the tailplane relative to the wing for the initial setup??
Thanks
Alistair
Post by: alibodin on July 07, 2012, 15:20:37 PM
(http://www.gliderireland.net/forum/images/uploads/alibodin/NakedQuark.jpg)
Need to add the nose with the lead, then shape the fuz, leading edge of wings, fin and rudder.
Then cover it all.
Alistair
Post by: billscottni on July 07, 2012, 15:35:05 PM
quick explanation: Fred & Richard are both at events, which is why neither has come back to you
Post by: alibodin on July 07, 2012, 22:36:38 PM
No rush.
Added lead in nose.
(http://www.gliderireland.net/forum/images/uploads/alibodin/LeadNose.jpg)
Then took the razor plane and sandpaper to the fuz to round it off.
(http://www.gliderireland.net/forum/images/uploads/alibodin/RoundingFuz.jpg)
Makes a bit of a mess :)
Glad I ahve the garage to do this in.
Alistair
Post by: alibodin on July 08, 2012, 19:01:04 PM
(http://www.gliderireland.net/forum/images/uploads/alibodin/NakedQuark2.jpg)
Covering ordered and should be here soon.
Final sand down with smooth and ready to cover.
Weighed it and came in at 1281 grams.
Alistair
Post by: billscottni on July 08, 2012, 19:07:07 PM
Post by: alibodin on July 21, 2012, 12:00:29 PM
Covering is nearly complete getting nearer that moment I have to throw it off the slope, before doing so I would like to get it setup correctly.
What Centre of Gravity is a good safe starting point? I am conscious of the old saying. Maiden with forward COG many flights maiden with too rearward COG only one flight!
What angle should the tail plane be relative to the wing? I assume 0-0 is that a good starting point?
Is it worth having spoilers (aileron up on landing) or anything like that to aid landing?
Thanks for any hints and tips on setup to optimise the chance of a good safe relaxing first flight.
Alistair
Post by: alibodin on July 24, 2012, 19:49:13 PM
Here are the servos in the fuselage. I added old snake inners to ensure the rudder push pull cables do not interfere with the elevator push rod.
(http://www.gliderireland.net/forum/images/uploads/alibodin/Ele%20Servo_sm.jpg)
Also so as to ensure aileron servo leads do not foul the eleavtor servo added a shelf that goes aboe elevator servo.
(http://www.gliderireland.net/forum/images/uploads/alibodin/WingWiring_sm.jpg)
Here is the nearly finished model.
(http://www.gliderireland.net/forum/images/uploads/alibodin/Quark2_sm.jpg)
Camera not to good as the canopy is orange as the tips are as well. Mind you yellow looks quite nice!
I ran out of diamond tape to hinge the ailerons, no longer sold. What do other people use?
Need to add aileron push rods, tape on the ailerons, set up TX, balance and ready for maiden,
Alistair
Post by: Richard Boyd on July 25, 2012, 07:30:13 AM
For hinging I used solartex, sorry I have no fotos on the way it is done but I am sure you could search the web and come up with some tips or maybe some one on here is hinging at the moment and they could post a few fotos.
When is you maiden planned for ?
Post by: Fred on July 25, 2012, 08:22:54 AM
Back from holidays!
Sorry for the silence the last few days, had to catch up with hundreds of emails (litterally!)
Alistair, as I said, you did a great job on your Quark!! :clap: :clap: The colour scheme is really looking good! :clap:
In my case, for the hinges, I use Blenderm, but using the covering as suggested by Mr Boyd is a very good option too :D
And to reply to your previous question, I put the reply here too, as that might help others :
For the CG, the point marked on the plan is the ideal one, but for the first flight, you can always move it forward 5mm or so.
Elevator incidence is 0-0 with the wing, and can be set by putting the elevator // to the top of the fuselage, where the rudder sits.
For the control throw, for the first flight, you can set some expo (40%) and dual rates if you want.
I'm looking forward to the report of the first flight :D
Post by: alibodin on July 25, 2012, 20:09:33 PM
I would like to have a nice logo of Quark 2M on the top of the wings.
(http://www.gliderireland.net/forum/images/uploads/alibodin/CaptureQ.JPG)
Tried my own with solartrim and it looked tacky. Anyone know a source where I can get a nice logo on some sticky covering so I can adorn my model rather than a letter a the time.
Thank you
Alistair
Post by: Fred on July 26, 2012, 08:50:02 AM
Good thinking on the logos!
Was working on some following your email, so here is a few ideas :
(http://www.gliderireland.net/forum/images/uploads/Fred/Quark%20stickers1.jpg)
On the wing to have an idea of the size :
(http://www.gliderireland.net/forum/images/uploads/Fred/Quark%20stickers2.jpg)
Of course, all open to suggestions / ideas :D
I can provide PDF or even PS files for these ones
Post by: JohnPearson on July 26, 2012, 11:04:21 AM
Post by: Fred on July 26, 2012, 15:19:27 PM
More info / photos when I have some.
Post by: Frederic on July 26, 2012, 18:33:35 PM
It's the début of the gloire !
Les deux Quouèrk avancent doucement, bientôt des photos...
The two Qourèk are avancing slowly, in a few days sames pictures...
Bises
Frédéric
Post by: alibodin on July 26, 2012, 19:52:21 PM
I do like the bottom logo would like fine on my model. Could you let me have the pdf or eps to send to someone to make the vinyl logo sheet for me please?
Also I do like the silhouette of the Quark. So how about a smaller circular logo for the fin/rudder. Perhaps the silhouette of the Quark with Islands Models text around it on the outside.
Here is one I drew (please don't laugh to much) drawing is not my skill.
(http://www.gliderireland.net/forum/images/uploads/alibodin/circularlogo.jpg)
Hinge material arrived today so off to hinge ailerons!
Edit: Added this:::
All done now, TX set up, balanced at 70mm from Leading edge. Start safe.
Weighed in at 1391 grams, 3lbs 1oz in old fashioned!
Putting on slow charge, northeley for tomorrow so may maiden!
Thanks
Alistair
Post by: Fred on August 01, 2012, 09:12:15 AM
Sorry, late reply again!
Did you maidned the Quark? :D
For stickers, work in progress!
For the rudder, took your idea and that gave me this :
(http://www.gliderireland.net/forum/images/uploads/Fred/Quark%202m%20rudder%20logo1.png)
Like it a lot actually!
There might need some tweaking but this is looking good :D
I am preparing the files for you, they will be available soon! (working on it)
Post by: Fred on August 01, 2012, 10:00:44 AM
Quote from: "Frederic"
Salut Fred !
It's the début of the gloire !
Les deux Quouèrk avancent doucement, bientôt des photos...
The two Qourèk are avancing slowly, in a few days sames pictures...
Bises
Frédéric
:lol:
And it is "International" !! :P
Well, more like Regional (French joke!)
So, where are the photos?? :mrgreen:
Post by: alibodin on August 01, 2012, 22:15:34 PM
I have some stickers on order,
AListair
Post by: Fred on August 02, 2012, 09:49:34 AM
Post by: Happy Days on August 14, 2012, 10:02:13 AM
Q……Quite
U……Unique
A……And
R…..Really
K…..Kleaver
:lol: :lol:
(Okay :roll: , I know Kleaver should be spelled with a ‘C’ but it’s pronounced the same!)
Post by: GeorgeB on August 14, 2012, 20:31:06 PM
Give me a week or two, rather three :)
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/qurk2mald.jpg)
Post by: Fred on August 15, 2012, 11:54:02 AM
First flight should be soon? :D
Keith...Apparently, you already had a few bottles of wine :lol: :lol: :P
Post by: Happy Days on August 15, 2012, 11:57:05 AM
Post by: Fred on August 15, 2012, 12:00:05 PM
Post by: Frederic on August 18, 2012, 21:53:44 PM
Here are the promised pictures of french Quouèrk \:D/
My friend Henri is working faster than me (he drinks less than me, probably) :roll:
I have not yet started the wings...
(http://www.gliderireland.net/forum/images/uploads/Frederic/PICT0426.JPG)
(http://www.gliderireland.net/forum/images/uploads/Frederic/PICT0427.JPG)
(http://www.gliderireland.net/forum/images/uploads/Frederic/PICT0428.JPG)
(http://www.gliderireland.net/forum/images/uploads/Frederic/PICT0429.JPG)
:D
Post by: Fred on August 20, 2012, 12:40:42 PM
Post by: orionis on August 20, 2012, 13:51:11 PM
Post by: Richard Boyd on August 21, 2012, 19:22:26 PM
Post by: Fred on August 22, 2012, 09:15:22 AM
Decent (well.. for Ireland!) weather here, just the odd rain, but good wind and some sunny spells! :D
Post by: Frederic on August 23, 2012, 12:00:14 PM
The first Quouèrk flew to Monédières yesterday. The pilot and constructor is very happy.
I just have to finish mine ... :roll:
In the meantime, here is the logo of the Quouérk
(http://www.gliderireland.net/forum/images/uploads/Frederic/quouerk%20logo.jpg)
By, :wink:
Frédéric
Post by: Fred on August 23, 2012, 12:36:23 PM
Nice one!! :lol:
So, first flight went well :D Congratulations to the builder / pilot :clap:
Post by: GeorgeB on August 27, 2012, 14:42:01 PM
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/IMG_9500.jpg)
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/IMG_9501.jpg)
(http://www.gliderireland.net/forum/images/uploads/GeorgeB/IMG_9502.jpg)
A little inside arrangement has to be done and than just impatient waiting for strong wind.
George
Post by: Fred on August 27, 2012, 14:54:25 PM
Like the colour scheme :clap:
So, just the radio to be installed?
Post by: GeorgeB on August 27, 2012, 15:11:38 PM
Quote from: "Fred"
That is looking really good George! :clap: :clap:
Like the colour scheme :clap:
So, just the radio to be installed?
Thank you Fred :-) Yes radio and some servos cable arrangement.
I'll put Quark logo on elevator after maiden also. :?:
Post by: Fred on August 28, 2012, 08:54:21 AM
And another successful first flight for Quark over in RCGroups :
http://www.rcgroups.com/forums/showpost.php?p=22555120&postcount=40
I am not too sure how many of them are being built, or have flown, but I can say "a lot" !! Wood building is not dead! :D
Post by: phil on October 01, 2012, 17:45:23 PM
My name is Philip and I live in France.
After a lot of looking glider that style, I fell in love with Quark and I started construction.
Of course, there are some minor construction details that I do not understand. If I could count on you to help me it would be nice.
As you can see, I use an automatic translator because my English is "VTPR" ;)
See you soon and good flights.
Phil
Post by: mario on October 01, 2012, 18:04:49 PM
bienvenue chez les cools
Post by: phil on October 01, 2012, 20:37:45 PM
I do not understand how the two parts of stabilizer were held between them. Are they glued? In this case, how to disassemble everything to repair. Please, photos would not be too much.
With a 4mm carbon tube, the key is 2.6mm. Is this sufficient as resistance?
Thank you for your answers, I must quickly control the carbon because my fingers itch;)
Post by: Brian on October 01, 2012, 22:38:32 PM
Quote from: "Happy Days"
Quark =
Q……Quite
U……Unique
A……And
R…..Really
K…..Kleaver
:lol: :lol:
(Okay :roll: , I know Kleaver should be spelled with a ‘C’ but it’s pronounced the same!)
Hi Keith,
That spelling is closer to cleaver than clever.
I'm afraid - very afraid :).
Brian
Post by: Happy Days on October 01, 2012, 22:42:09 PM
Post by: johnfireball on October 02, 2012, 00:23:40 AM
Post by: Fred on October 03, 2012, 13:12:21 PM
Quote from: "phil"
Hello and thank you for the welcome.
I do not understand how the two parts of stabilizer were held between them. Are they glued? In this case, how to disassemble everything to repair. Please, photos would not be too much.
With a 4mm carbon tube, the key is 2.6mm. Is this sufficient as resistance?
Thank you for your answers, I must quickly control the carbon because my fingers itch;)
Salut Phil, welcome to the forum! :D
I am going to reply here, as this may help others.
The 2 elevators are not glued together. In mine, they are simply held with the carbone rods, in force. More than enough.
2.6mm is enough (that is also what I use), but that can be replaced by piano wire of course :D
***************************
Bon, je poste ici, car cela peux en aider d'autres,
Mes 2 demi stab ne sont bien sur pas collés, tout tient en force en rentrant les clefs. 2.6mm est assez, c'est comme le mien, mais il est bien sur possible de remplacer le carbone par de la CaP.
En utilisant de la CaP, il suffit de tordre legerement une des clefs, pour que ca rentre en force. comme ca, les stabs ne bougent pas :D
Post by: phil on October 04, 2012, 20:46:27 PM
Thank you for these precisions. I got the carbon today and I'll be able to continue construction. I can not wait to throw the baby slope.
I will keep you Current evolution of the construction.
It's nice to have you for the advice. It's easier to ask God to his saints;)
Phil
******************************
Bonjour
Merci pour ces precisions. J'ai reçu le carbone aujourd'hui et je vais pouvoir continuer la construction. Il me tarde de jetter le bébé à la pente.
Je vous tiendrai au courrant de l'évolution de la construction.
C'est sympa de pouvoir compter sur vous pour les conseils. C'est plus facile de demander à Dieu qu'à ses saints ;)
Phil
Post by: Fred on November 02, 2012, 13:13:50 PM
First flight went well, and love it :D
(http://www.gliderireland.net/forum/images/uploads/Fred/Quark%20Italy%202.jpg)
You can see that he splitted the ailerons to have the flap option.
(http://www.gliderireland.net/forum/images/uploads/Fred/Quark%20Italy.jpg)
AUW is 1.4Kgs despite the modifications :clap:
More photos to come :D
Post by: erwan on November 02, 2012, 15:08:57 PM
Post by: Fred on November 02, 2012, 15:24:50 PM
On mine, I don't see a need for it, as you really can slow it down without stalling, and in all other cases, ailerons down is more than enough.
If I find the original plan, I might put it to download. Very simple change to do.
Might also get rid of the carbone spars, and use strip wood instead :?:
Post by: erwan on November 02, 2012, 15:46:14 PM
Post by: billscottni on November 02, 2012, 16:44:19 PM
Post by: Fred on November 22, 2012, 11:47:13 AM
(http://www.gliderireland.net/forum/images/uploads/Fred/quark%20flaps%20Italie.png)
Pilot said that landings with full flpas, is like landing an helicopter, no speed, and no stall :D
A very good mod for the ones that want to do it :clap:
Post by: Fred on December 06, 2012, 09:12:39 AM
Lot and lots of work these days for me, but it is now time to catch up with a few things! :D
Another Quark is ready to be flown, once again, from Italy.
Rubio built his Quark in 2 weeks, and made a change to the canopy to have more of a Racing look :D
In the RedBull scheme, that seems to be back into fashion.
(http://www.gliderireland.net/forum/images/uploads/Fred/rrreeerre.jpg)
Now waiting for the first flight :D :clap:
Post by: Happy Days on December 06, 2012, 09:55:29 AM
I can’t see too well but this RED BULL seems to have a full house wing, doesn’t it? :?:
Can someone please video one of these Quarks flying and show the roll rate. :D The only time I’ve seen a Quark in flight I was told the lift wasn’t good enough to produce a fast roll.
Surely someone has tried one of these is high wind conditions,…..haven’t they? :!:
Keith
Post by: Fred on December 06, 2012, 10:20:25 AM
Cannot produce enough to meet demand :!:
Not complaining though! :D
I actually don't know for the wing, but I ask (received the photo yesterday)
I think there are quiet a few videos of the Quark doing rolls at various speed, wind conditions.
Anyway, when you see the size of these ailerons, you should not worry too much about that! :P
Post by: Fred on December 06, 2012, 17:05:42 PM
No Flaps, and cool looking glider :clap:
(http://www.gliderireland.net/forum/images/uploads/Fred/balc.jpg)
(http://www.gliderireland.net/forum/images/uploads/Fred/balcone.jpg)
Post by: venture on December 06, 2012, 20:30:05 PM
Is there any news about a (short) kit?
greets, Nico
Post by: Fred on December 07, 2012, 13:12:20 PM
Yep, short kits are available for a while now (can't remember, I think that was around May :?: )
Saying that, you have to be on your toes to get one, as they get out of stock quicker that I can make them! (record is 10 gone in about an hour).
Best thing to do is to click on the "notify me" icon on the Quark Page, you will receive a mail when it is back in stock live.
Fred :D
Post by: Fred on December 21, 2012, 14:32:52 PM
(http://www.gliderireland.net/forum/images/uploads/Fred/IMAG1151.jpg)
(http://www.gliderireland.net/forum/images/uploads/Fred/IMAG1212.jpg)
Post by: Fred on February 15, 2013, 09:14:35 AM
Another great build, this time, for the Czech Republic.
Look at this sexy fuselage! :D
(http://www.gliderireland.net/forum/images/uploads/Fred/QUARK_027.jpg)
And cherry on the cake, Pavel made a Quark Logo / Stickers! :clap: :clap:
(http://www.gliderireland.net/forum/images/uploads/Fred/QUARK_001.jpg)
More details on his build, with some great mods : http://pajanfoto.zonerama.com/Album/64221#
The Quark Community is still growing, with countless builds and happy flyers :D :clap:
Post by: billscottni on February 15, 2013, 12:39:33 PM
Post by: Fred on February 15, 2013, 12:46:10 PM
Ok, I might cut a new one for me this week end! That's it, I need to make another Quark!
Oh, and Pavel sent me the CDR file for the logo.
I know nothing about this stuff, but I guess this can be easily used to make stickers :?:
And fair play to Pavel for doing it and sharing it! :clap:
Post by: johnfireball on February 16, 2013, 00:55:36 AM
Thats near perfect. Just needs the fuse rounded off more on the top aft section. I like the taper in on the bottom going aft. I'm sure the longer nose makes no difference as adding noseweight anyway. Redraw and have a 2013
glider.
John.
Post by: Fred on February 16, 2013, 10:12:17 AM
No re-drawing on that one :D I leave it like this, but saying that, I'm going to cut one for me next week with wood spars, and maybe splitted ailerons to see if that gives any advantages. If it works, I will make this option available (and the wod spar will make this glider a very cheap build too)
The longer nose works great, as the ones built are all at least 200grs lighter than the prototypes with a shorter nose (logical I must say), and it looks slightly better in my opinion :D
Post by: Freedom Flyer on February 16, 2013, 15:59:00 PM
Very nice looking, do you have a pic of it completely together? Man I've got to get busy building something :?:
Post by: andrew wallace on February 16, 2013, 19:58:39 PM
good to have you back :clap: :clap:
Post by: Freedom Flyer on February 17, 2013, 14:33:36 PM
http://www.rcgroups.com/forums/showthread.php?t=1796345&page=39
His name is Keith he's quite the craftsman, I started at the beginning of the thread and read the whole thing.
Great to be here again FF :o
Post by: Fred on April 15, 2013, 12:01:15 PM
This time, from Pavel (see posts on top. Pavel is the designer of the Quark Logo).
And a nice video from his friend Zbynek Cernik (aka Acroholic)
https://vimeo.com/64004175
Well done! :clap: :clap:
Post by: Fred on April 30, 2013, 12:34:40 PM
Pilot's report no issue, a very easy machine to fly and that will do pretty much everything you ask for. He is now waiting for stronger winds to push the Quark to its limits!
Nice one Alexander! :clap: :clap:
(http://www.gliderireland.net/forum/images/uploads/Fred/AlexanderP0005.jpg)
(http://www.gliderireland.net/forum/images/uploads/Fred/AlexanderP0002.jpg)
(http://www.gliderireland.net/forum/images/uploads/Fred/AlexanderP0003.jpg)
(http://www.gliderireland.net/forum/images/uploads/Fred/AlexanderP0004.jpg)
(http://www.gliderireland.net/forum/images/uploads/Fred/AlexanderP0006.jpg)
(http://www.gliderireland.net/forum/images/uploads/Fred/AlexanderP0001.jpg)
Post by: MicheTN on May 19, 2013, 16:58:35 PM
I've found some problems printing the fuselage plans on a plotter: I print from Adobe Acrobat but I get a completely out of scale plan. No problem instead with the wings plan. I downloaded the V2 plans from there (http://jivaro-models.org/quark_2m/page_quark_2m.htm).
Now a building-question:
I've seen on RC-Groups that someone used a spruce-spar with shear webbing. Honestly I've ever built my spar in this way, instead of CF spar. What's better, in terms of torsion-rigidity and weight?
Post by: Fred on May 20, 2013, 20:06:28 PM
Welcome to the forum! :D
Hmm, strange fro the plan, I print them from this PDF, no issues :?:
On top of my head, they are seen as oversize for the fuselage, so you might need to make sure that there is no scaling when printing (100% printing or actual size depending of the software you use to print).
For the spar, to be honest, this is pretty much the same, especially with webbing, this hardly move!
It's more a question of cost, as the price of carbone these days make the build very expensive, and you will build the same glider much cheaper at the end if you use wood spares.
I'm building one with wooden spares, I'll try to put some photos :D
Post by: MicheTN on May 20, 2013, 20:50:24 PM
I will retry tomorrow to print the fuselage plan, i will double-check to the scaling on Adobe.
For the spar:
- on RCG they say 3*10 mm spruce spar and 3mm balsa share (vertical grain of course); could be good?
- wing joiner in this case? spring steel (12*2mm) and brass tube(13*3mm)? how long?
- is really needed to have a full-sheeted wings or can I save some weight with it?
Post by: erwan on May 20, 2013, 21:28:02 PM
I finish mine today, 1730 gr with plan respecting. It's not heavy
Post by: Fred on May 21, 2013, 14:42:08 PM
Quote from: "MicheTN"
Thanks Fred for your answer!
I will retry tomorrow to print the fuselage plan, i will double-check to the scaling on Adobe.
For the spar:
- on RCG they say 3*10 mm spruce spar and 3mm balsa share (vertical grain of course); could be good?
- wing joiner in this case? spring steel (12*2mm) and brass tube(13*3mm)? how long?
- is really needed to have a full-sheeted wings or can I save some weight with it?
No problem :)
For the spar, on mine is 10x5mm hard wood, no webbing, but I will sheet the wing from LE to spar, so that gives you a sort of "D" box if you see what I mean. Rigid enough for me :)
Wing joiner, like the plan. 10mm OD tube with a 8mm rod as a wing joiner.
On top of my head, they are 2 ribs long, this is enough as the load is then taken on the spars if you see what I mean (front joiner is between the 2 spars)
No need to be fully sheeted. Add some spar webbing and off you go :)
Also note, that the V2 plan makes the glider lighter than the first version. You should be around 1.5kgs at most!
Hope this helps, but let me know if you have more questions of course :D
Post by: MicheTN on May 22, 2013, 15:28:00 PM
So the V2 version isn't jut a longer nose and different ailerons?
Post by: igull on May 24, 2013, 13:39:19 PM
Thought I'd post yet another Quark - this time from across in Scotland :D
I'm lucky in having my own homebrew laser, so cutting wasn't an issue :)
Used liteply for the fuselage sides rather than 5mm balsa, so I'll see how much lead is needed in the nose :-)
Only had a couple of minor structural issues during the build, the servo plates were only attached front and rear on the formers - consequently, they were really weak at the servo cutout and just cracked when installing the screws (there was also a lot of flex when the servo operated). I changed the design to have the servo plates the same width as the fuzz - also stops the fuselage flexing where it's gripped. The other one was the vertical stab, the top half of the stab is held only by a couple of small areas of horizontal grain - I added a 6mm spruce spar at the fin TE which ties in to the end of the fuzz.
AUW is around 960g naked - I'll post some more pics when covered.
Great looking plane - thanks for making it available - good job!!
BTW, anyone struggling to get carbon tube etc in the UK - I got mine online from Woolmer Forest Composites ...
https://www.woolmer.co.uk/
Not cheap, but nicely made and well packed - real pultruded too - not black chinese dust and epoxy :-)
Cheers
Neil
(http://www.gliderireland.net/forum/images/uploads/igull/quark%201%20wee.JPG)
(http://www.gliderireland.net/forum/images/uploads/igull/quark%202%20wee.JPG)
(http://www.gliderireland.net/forum/images/uploads/igull/quark%203%20wee.JPG)
:lol: :lol:
Post by: Fred on May 31, 2013, 08:59:59 AM
Welcome to the forum :D
Thanks for showing us your build, very neat :clap: :clap:
For the tubes etc, I have now changed the plan, and wooden spars are now used, and this makes the build even cheaper without compromising the strenght / rigidity of the airframe :D
Keep us updated for the first flight Looking forward to it :D
Post by: igull on May 31, 2013, 15:47:39 PM
Eventually got the machine covered - film courtesy of Mr Cod - seems like good stuff for the price. I've covered the underside in white with the intention of putting big dark blocks of colour on.
Pix attached, always was a frustrated PSS'r :lol:
With any luck, should get it out on the slope this weekend.
Much prefer the idea of a wood spar - aircraft spruce is much cheaper than carbon tube !
Cheers
Neil
(http://www.gliderireland.net/forum/images/uploads/igull/quark%20front.JPG)(http://www.gliderireland.net/forum/images/uploads/igull/quark%20side.JPG)
Post by: Fred on June 05, 2013, 12:40:42 PM
Anyway, me like it a lot! :clap: :clap:
Original colour scheme, that suit it very well on top of that! :clap:
So, have you done the first flight? :D
Post by: Fred on July 17, 2013, 09:37:52 AM
This time from France :D
First launches on the flat went well... First slope session this week end :D
(http://www.gliderireland.net/forum/images/uploads/Fred/DSC_1438quarkjp.JPG)
(http://www.gliderireland.net/forum/images/uploads/Fred/DSC_1439quarkjp.JPG)
(http://www.gliderireland.net/forum/images/uploads/Fred/DSC_1440quarkjp.JPG)
Post by: alibodin on July 19, 2013, 12:16:56 PM
Assembled the Quark (note to self need some wire with hooks to do the bands to hold the wings on).
(http://www.gliderireland.net/forum/images/uploads/alibodin/Quark2M%20AHB%20800.jpg)
Thought here we go and chucked her off, no problems at all quite twitchy, so switched in rates which helped. very docile and fun to fly. COG looked forward then I had added 2 1/2 oz of lead to be safe for first flight.
Landed, took out lead, added in spoiler for slowing down on landing.
Off we go again, great fun rolls are good as are loops, inverted still needs some 'down' so will look at removing more lead. Gained height and from level dived and did outside loop.
Lift suddenly died so just headed for landing area and just got there in time.
Third flight was great fun, lift still a bit marginal.
Overall great model and really enjoyed the build and the flights.
Note to self fly more and add some white to underside of wing. Ohh and finish Gunau Baby
Alistair :D :D :D :D
Post by: Fred on July 20, 2013, 18:08:51 PM
Glad the first launches went well, and of course, wish you more fun with the Quark :clap: :D
So, now, you are right, where is the Grunau?? :?: :P
Post by: alibodin on August 30, 2013, 21:16:06 PM
Oh well at least I still have the Quark.
Alistair
Post by: alibodin on August 30, 2013, 21:26:32 PM
(http://www.gliderireland.net/forum/images/uploads/alibodin/Quark%20and%20Baby2.jpg)
Alistair
Post by: Fred on August 31, 2013, 12:27:43 PM
Quote from: "alibodin"
Finished the Grunau, and had heavy landing on maiden. There was enough lift for the Quark but a heavier draggier Grunau struggle. Heavy arrival broke both wings and the pylon of the fuz. :(
Oh well at least I still have the Quark.
Alistair
Argll!! :!: :!:
Bummer! Fixable I hope for the Grunau!
If you need a few bits and pieces, let me know!
At least, you have Quark to fly while fixing the Grunau! How did you find the Quark in flight?
Post by: fabio1963 on September 24, 2013, 16:15:19 PM
my quark is finished and has been tested successfully in spite of the conditions never good, it was very fun to build, but do not think it's a matter of a few days.
however, it seems to be an excellent model that keeps its promises.
some pics from genoa righi!
stay cool
Fabio(http://www.gliderireland.net/forum/images/uploads/fabio1963/IMG_0420.JPG)(http://www.gliderireland.net/forum/images/uploads/fabio1963/IMG_0421.JPG)
Post by: Fred on September 24, 2013, 19:15:44 PM
Welcome to the forum :D
Very nice work on your Quark! Glad you like it :D
And God, that's a nice view over the city from your slope! :shock: :clap: :clap:
Have you planned to apply some colours on your model? (looks like solartex right? :?: )
Post by: johnfireball on October 07, 2013, 23:57:44 PM
Yet another Quark slowly taking shape 900 grms of sanded balsa, I'm sure I probably started with 2kg. I have since sheeted the tailfin with 1/32 balsa for rigidity but will leave rudder as is. I think I will split the ailerons for dual servo operation as I think my little servos would not be man enough for the job. I used a wooden pushrod with wire bound for tailplane and bushed the bellcrank with brass tube to fit the wire ( no wobble) Nice kit Fred, good wood and beautifully cut. Lot of work in them wings.
John.
Post by: Fred on October 08, 2013, 12:09:13 PM
Looking good John!
And 2Kgs, you will end up lighter than that! Guaranteed! (my proto, with short nose etc etc, ended up at 1.7kgs...)
Everybody build the kit between 1.2 and 1.5kgs for the heaviest ones :D
Anyway, whatever weight, you will enjoy the flying :D :D
Post by: johnfireball on October 23, 2013, 10:27:25 AM
All done and near ready to fly. Just need the weather to comply.
John.
Post by: billscottni on October 23, 2013, 12:21:44 PM
Post by: Keith on October 23, 2013, 17:10:17 PM
Post by: Fred on October 24, 2013, 11:00:50 AM
Let me know when you go to the slope to fly it! :D
Post by: johnfireball on October 24, 2013, 22:06:42 PM
Looking forward to maiden.
John.
Post by: johnfireball on November 03, 2013, 00:08:00 AM
Thinking of going up to Killakee tomorrow Sunday, it's sofar looking weatherwise promising around midday.
John.
Post by: Fred on November 05, 2013, 11:53:20 AM
Sorry, was not online last week end :?
Did you fly it on Sunday?
Post by: johnfireball on November 05, 2013, 22:13:16 PM
John.
Post by: stephen.shannon on November 05, 2013, 22:46:49 PM
Stephen
Post by: Fred on November 06, 2013, 08:41:25 AM
Quote from: "johnfireball"
No, It was a bit gusty and I was alone. I didn't want risk a self launch in those winds. Flew my spitfire and that was pretty hairy.
John.
Yeah, Sunday's conditions were a bit on the extreme side for the Quark!
You don't have my number to text me? :?:
Maybe this week end? I might be free
Post by: johnfireball on November 10, 2013, 00:03:51 AM
Maidened my Quark today,':D' what a beautiful flyer. She went straight off only needing a few clicks of downtrim to sort her out. I was really impressed with the efficiency of the wing section so much so that I had some difficulty in getting her down. It was quite windy 25 knots, after about 6 passes attempting to put her down Jim commented that "the wind will drop at about 7pm".':shock:' I think that I might have too much reflex on the ailerons and maybe will programme it to be adjustable during flight. Best glider I've ever flew and looking forward to flying it some more.
John.
Post by: Fred on November 19, 2013, 12:37:07 PM
Glad you like it :D
Post by: Jinxter on December 23, 2013, 00:19:42 AM
Greetings from Australia :)
Fred - I love the look of the Quark and I can't wait to get it flying. Also a big thank you for making the plans available.
I am about to start building my quark over the Christmas break and I am planning to make the wing with flaps. The landing site at my local slope is very tight so the slower the better.
I would like to know what percent of span you would recommend for the flaps?
At present the my quark is just a lot of balsa but I'll include some photos as I get the build underway.
I hope everyone has a very Merry Christmas.
Cheers,
Colin.
Post by: Fred on December 25, 2013, 12:35:44 PM
Welcome to the forum, and good to see you here :D
The original Quark plan have flaps actually, but decided not to do them.
On the plan, flaps are roughly 50% of the ailerons.
With quadros etc etc, that should gives you a nice setup.
Mind you, flaps are not essential for landing, with ailerons down, and the low wing loading, that thing can land pretty much anywhere :D
Have fun with the build, and don't hesitate to let me know if you have any questions. (and please, post photos! :D :D )
Post by: fabio1963 on January 01, 2014, 11:24:11 AM
happy new years guys!
I'm going to finish paining my quark,
here are my wings,
soon the complete livrea finished.
fabio(http://www.gliderireland.net/forum/images/uploads/fabio1963/flag%20asg%20293.jpg)
Post by: Fred on January 01, 2014, 17:32:01 PM
I like the white trims on the wings. Are they painted? :?:
Post by: fabio1963 on January 02, 2014, 18:38:48 PM
totally painted, I used 3m strips for trims and frisket for lettering, airbrush for skull.
yesterday after a stout landing my quark suffered some damages in the fuselage near the bayonet. exactly around the first ribs on the fuselage, both disconnected...
I repaired it applying some thin plywood poplar inside the fuselage, but I suggest to reinforce this part of our quark.sorry for my english
bye
Quote from: "Fred"
Looking good Fabio! :clap:
I like the white trims on the wings. Are they painted? :?:
Post by: Fred on January 02, 2014, 22:15:27 PM
No worries for your English (very good), you should hear my Italian! :D :oops:
Sorry to hear about your crash! If I understand, the fuselage broke at the wing joiner right?
Is the plywood rib on the fuselage that broke? :?: (If you have a photo, I will be happy to have a look at a modification here, maybe by adding another rib / support inside the fuselage :?: )
Anyway, you are way better at painting than me! You have skills! :clap: I only manage to use stickers, everything else usually end up in a disaster! :oops: :oops:
Post by: Nick on January 22, 2014, 13:10:50 PM
Just received my Quark kit , as I'm an inexperienced balsa basher I have a few question I'm hoping you can help with .
1. Whats best for the wing spar's Stika spruce or cyparis ?
2. The wing ribs have a 5X5mm notch in the front is this for the leading edge or does the leading go on top of that ?
3. Presumably the leading edge should be of fairly hard material, would stika spruce be a good thing to use ?
4. Can you recommend some reasonably priced servos ?
All comments/advice welcome .
Thanks in advance .
Nick .
Post by: Fred on January 24, 2014, 07:46:55 AM
Welcome to the forum, and apologies for the late reply :oops:
In order :)
1>For the spars, I kept it simple, and used Pine :) I started another wing with balsa spars, and works well so far, but if you have access to both materials, I would take Stika spruce then, but don't worry too much about that :)
2>The 5x5 notches are what we call a "false" Leading Edge. The real LE will be glued into it. This add stiffness and support, can be made of 5x5 balsa or pine (in my case)
3> In my case, they are balsa, because easier to sand in shape, and that is pretty solid with the 5x5mm pine backing. You also have to try to keep it as light as you can
4> For servos, in my Quark, I used the Hobbyking stuff. I used the MG14 for the ailerons, and standard size servos for the Rudder/Elevator, but the range is huge! Try to get servos with metal gears, standard size for the rudder/elevator if possible, but you can of course go smaller. Mini size for the ailerons, like I did with the MG14, but you can also use the HS81 or equivalent of course :)
Hope this helps, and that is clear, but let us know if not, happy to help :)
And keep us posted on the build :)
Fred
Post by: alibodin on September 21, 2014, 23:13:51 PM
AListair
Post by: Fred on September 25, 2014, 11:38:10 AM
I can't remember, but do you have any photos of your Quark? :?:
Post by: alibodin on September 25, 2014, 20:07:05 PM
Alistair
Post by: alibodin on November 02, 2014, 21:53:38 PM
Having built a Quark has anyone retro fitted an extra set of servos in the wing to add flaps and aileron, is it easyish?
Looking to add flaps to allow crow braking to help me land on the slopes I fly.
Thanks
Alistair
Post by: Fred on November 06, 2014, 10:33:03 AM
I am not aware of any retrofitting. :?:
Should not be too hard I think. Cut the ailerons maybe where the servo bay is.
Add a servo on a piece of wood glued between 2 ribs near the wing root.
I would try to put the additional servo as close as possible to the wing root to avoid adding too much weight far from the fuselage. will help with inertia a bit :)
Another way, might be to install the servo, if you use a mini one, in a cut-out in a rib :?: Might fit. And with a piece of plywood to re-inforce it, should be no problem, and slick once recovered :D
Post by: alibodin on November 10, 2014, 19:53:42 PM
On further thought I think I will keep the Quark as is.
If I get another maybe build it in from the start :)
Alistair
Post by: heli_bee on April 12, 2015, 19:12:21 PM
I ended up removing 35 grams of lead from the nose, moving the CG back behind the the plan position. Not sure where it is set right now but with the wing and tailplane at 0:0 incidence the model will continue in a dive and not pull out.
(http://www.gliderireland.net/forum/images/uploads/heli_bee/FullSizeRender.jpg)
Martin
Post by: Fred on April 13, 2015, 14:24:22 PM
Welcome to the forum :)
Now, that's a nice photo! Like the scheme! Glad you like the Quark and the first flight went well :)
For the CG, I believe the most extreme I saw, was somewhere between the 2 wing joiners!
If you fly inverted, do you have to push a lot?
Post by: heli_bee on April 13, 2015, 14:57:09 PM
Thanks for the compliments on the colour scheme. It came about because I was using up lots of odds and ends from my covering box. I haven't done more than repair existing coverings for the last ten years so I was pleased with the result! It can certainly be seen.
As to flying inverted, I still need about a half stick of down elevator to maintain level flight. I will try again in lighter wind conditions and may shift the CG back again.
Martin.
Post by: Fred on April 13, 2015, 15:19:42 PM
The scheme does look nice, and done with leftovers on top of that! :clap:
Half a stick... Hummm, Is the elevator with the f"flat" profile, or the "proper" profile one? :?:
Post by: heli_bee on April 13, 2015, 15:35:32 PM
The elevator is the proper profile one - CNC cut.
Martin.
Post by: heli_bee on April 14, 2015, 09:25:00 AM
With the benefit of hindsight, the actual amount of down elevator movement to maintain altitude when inverted is not that much, when you think about it.
I am currently using 60% exponential as per the plan!
Martin.
Post by: Fred on April 14, 2015, 10:14:50 AM
AAahhhh OK, 60% expo on the elevator!
Sorry, I think I made a mistake (never updated the values!) but on the article, I said I totally removed the expo on the elevator :oops:
Much sharper response, but you can start by reducing it to 30%
I double check my plan! :oops:
Post by: heli_bee on April 14, 2015, 10:59:47 AM
I had planned on trying to reduce the expo on the controls once I had got comfortable with the flying characteristics. I will reduce the elevator throw a bit and try 30% expo for the next flight.
Thanks,
Martin.
Post by: Fred on April 14, 2015, 12:07:30 PM
30% sound like a good start. You should not see much difference, just a bit less push on the stick.
The benefits will be a much sharper response of the elevator, a bit more in "phase" with the rest of the controls if you see what I mean :)
Let me know how it goes :)
Fred
Post by: heli_bee on April 27, 2015, 10:26:17 AM
The model flew well with the elevator expo set to 30%. I will reduce it to zero for the next flight.
Everybody on the slope was surprised at the quality of the slow speed handling and the roll rate :D
With a couple of mm droop on the ailerons the model climbed very well.
Martin.
Post by: Fred on April 27, 2015, 10:44:41 AM
I totally removed the expo on mine on the elevator. Much better I think, more "in line" with the rest in the controls for responses.
Glad you enjoy your Quark :D
Post by: alibodin on May 03, 2015, 18:04:22 PM
Managed to break both carbon wing joiners, fuz was a little sad and broken. Wings not a mark on them.
Mending fuz was like a 3 D jigsaw puzzle put the balsa bits back in place and hold all square and add thin cyno. Did add some fuz reinforcing inside the fuz. Anyway all fixed and COG is now at about 65mm from leading edge which is very safe. :)
My question is how long do the carbon wing joiners need to be??
Is 320mm long enough for the front and 260mm for the rear?
If not I need some new Carbon fibre rods!
Feedback welcome, thank you.
Alistair
Post by: Fred on May 19, 2015, 09:26:05 AM
Sorry to hear about your Quark :(
Your wing joiners are long enough. I think that was roughly the size of mine. In theory, even half that would be enough :D
Post by: Fred on May 19, 2015, 09:38:55 AM
And in France with this nice exemple:
(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1354.jpg)
(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1356.jpg)
And they say that Copy is the best form of flattery... I can't remember how they called it, but I'm getting used to it at this stage :) (that would be the 4th copy I'm aware of. Or as they say, "inspired by" but much better :)
(http://www.gliderireland.net/forum/images/uploads/Fred/CopieQuark2m1.PNG)
Post by: Happy Days on May 19, 2015, 13:37:20 PM
Post by: Fred on May 19, 2015, 13:51:26 PM
Post by: Happy Days on May 19, 2015, 14:21:34 PM
Post by: billscottni on May 19, 2015, 18:21:00 PM
Post by: Happy Days on May 19, 2015, 19:05:56 PM
Like a fine wine, I improve with age :P
Post by: billscottni on May 19, 2015, 20:09:07 PM
Can't talk 5...............................0 this year!
Post by: Happy Days on May 19, 2015, 20:13:35 PM
Quote from: "billscottni"
or end up "corked" :?::lol: :lol: ....That was very witty Bill. (You sod!)
Yeah, I guess that would be about my luck.
Post by: billscottni on May 19, 2015, 20:21:30 PM
Post by: alibodin on May 20, 2015, 19:45:53 PM
Alistair
Post by: Happy Days on May 20, 2015, 21:23:59 PM
Old.
Ancient.
Mature.
Old Bugger.
Or, ‘Corked.’
Be honest now, remember, “Tell the truth and shame the devil.” :lol:
Little Keith
Post by: alibodin on May 20, 2015, 22:32:41 PM
Alistair
Post by: Fred on February 28, 2016, 17:19:21 PM
Post by: Nhalyn on July 25, 2016, 15:31:24 PM
Screwing this topic out of old Irish mountains !
I consider building a Quark from the short kit in September or so. I start to review all thing as the kit is on order...
One thing I have to statute before starting the wings : 2 ailerons or quadro-flaps ?
I've seen in this old topics that the discussion have been started long ago and was even the first question. I've not (yet) read everything but have you all arrived to a statement about it ? I try to have an estimation of how many quark are "quadros"...
What are plus and minus ?
Quadro plus :
- butterfly airbrakes
- fine tuned flaps curvature for flight conditions
- less flap throw than ailerons for less adverse yaw
- complicated (4 servos, 4 links, Tx program)
- heavier
Best regards and happy flights !
Post by: Nhalyn on July 27, 2016, 09:06:50 AM
:( :'( :-[
Post by: rogallo on July 27, 2016, 09:16:03 AM
Post by: Nhalyn on July 27, 2016, 10:02:00 AM
:( :( :(
Post by: mario on July 28, 2016, 05:50:43 AM
Il peut te l amener à creully
Post by: Fred on August 02, 2016, 08:00:10 AM
Hi guys !
Screwing this topic out of old Irish mountains !
I consider building a Quark from the short kit in September or so. I start to review all thing as the kit is on order...
One thing I have to statute before starting the wings : 2 ailerons or quadro-flaps ?
I've seen in this old topics that the discussion have been started long ago and was even the first question. I've not (yet) read everything but have you all arrived to a statement about it ? I try to have an estimation of how many quark are "quadros"...
What are plus and minus ?
Quadro plus :Quadro minus:
- butterfly airbrakes
- fine tuned flaps curvature for flight conditions
- less flap throw than ailerons for less adverse yaw
- complicated (4 servos, 4 links, Tx program)
- heavier
Best regards and happy flights !
Howdy Jean-Mi,
Ok, so, to answer quickly the question. I am only aware of 2 or 3 Quarks with Quadro (out of maybe 200+ built).
I understand the move to put Quadros, but, in this case, does that really add more to the flying? I would not be too sure.
I have to say, I never flew a Quark with Quadros, but let's say that when flying mine, I never felt the need to have "more stuff" added to it. So are the few people I talked to who are flying a Quark.
Landing? Never had any mix. Front of the wind, pull elevator, control the descent with the ailerons, done :)
Camber? The SB96-96VS combination is very well known. I flew thermals with the Quark, so as in big winds. Without changing anything to the wing platform. In my view, pick a good profile, polyvalent, and you are sorted. It will never be 100% in all conditions, but let's say, in my opinion, compared to fully symmetrical profiles, you cannot compare the ease of flying. Much more important to me than fiddling with switches :) Launch, fly.
Adverse yaw, I have to say I haven't noticed or remember :(
Anyway, this is my view. Keep it simple, but totally opened to debate :)
Post by: Nhalyn on August 02, 2016, 09:04:45 AM
That's a good resume I was waiting for... Keep It Simple, I like this...
Post by: Nhalyn on October 25, 2016, 09:04:00 AM
Well, by the most simple part...
::) 8)
Post by: mario on October 25, 2016, 11:15:47 AM
Post by: Fred on November 16, 2016, 15:19:28 PM
Post by: Fred on December 01, 2016, 08:17:48 AM
Post by: Nhalyn on December 01, 2016, 09:55:51 AM
In facts, there not so much available gliders like that on the market !
A pure aerobatics glider : not so much on market !
Not a full fiberglass one : not so much on market !
Easy to build, to repair, not hesitating to do aerobatics at low level : not so much on market !
Post by: Fred on December 01, 2016, 16:16:13 PM
And in general I think there are still a lot of builders out there. For planes, or gliders for that matter :)
Post by: Nhalyn on January 30, 2017, 09:48:33 AM
More seriously, I've really started mine... Goes like a charm...
I've done few modification of the servo tray by adding a tow servo and few reinforcement for good rigidity. Let's continue !
Post by: Fred on January 30, 2017, 20:23:14 PM
Post by: mario on January 31, 2017, 14:05:02 PM
Post by: Nhalyn on February 06, 2017, 10:32:15 AM
Next step...
I've put 5x5mm balsa stick all around the canopy for stiffness purpose (as servo tray don't touch the sidewalls). This leads to modification of frame C3, but not on frame C2.
Also prepared the elevator rod (not finished servo side) : it will be carbon rod in this all wood glider... ;D :o
Then, assembly on the fuse ! Nice curve ! :-[ :-X:-*
Post by: Fred on February 07, 2017, 10:21:45 AM
You have 2 months to finish it! ::)
Post by: mario on February 07, 2017, 11:11:34 AM
Depeche toi 8)
Post by: cicciopasticcio on February 12, 2017, 17:11:14 PM
this is my first post here. I am also planning to build a quark. But I have one question... (I am not so an experienced builder..).
Which is the best method to glue the carbon tubes in the wing to the wing ribs? Cynao? Or 90 minutes epoxy?
Thanks!
Marco
Post by: alibodin on February 12, 2017, 18:12:22 PM
Alistair
Post by: Nhalyn on February 13, 2017, 10:15:07 AM
For Carbon I use Cyano with great success. Just put a little grind with sand paper on the areas to be glued and it's strong.
Just put parts in the right place and use very fluid cyano to add glue.
Post by: Nhalyn on February 13, 2017, 10:17:11 AM
Seems I need a pair of wing and a stabilizer... :o
Post by: cicciopasticcio on February 13, 2017, 22:51:21 PM
Hello Marco ! Welcome...
For Carbon I use Cyano with great success. Just put a little grind with sand paper on the areas to be glued and it's strong.
Just put parts in the right place and use very fluid cyano to add glue.
I used cyno to secure them in place and then some epoxy to add some more strength.
Alistair
Hi, thanks to both of you! I look forward to complete the build in the next weekend, and the I will post pics!
Marco
Post by: Fred on February 14, 2017, 21:33:00 PM
Welcome to the forum :)
Enjoy your Quak build, and do not hesitate to share photos or ask anything :)
Like the others, I used Cyano for my tubes. Then, a second pass, outside, with Cyano accelerator. The cyano becomes hard and really seal the tube to the ribs. Not sure if this is actually "working" but I felt better after I did it :) It's all in my head :)
@ Nhalyn: Looks very good!! :)
Keep up the great work! April is coming soon!
And finally, the Quark in the snow! Photos received from Sweden.. Or Norway, I can't remember! :-[ :-[
Post by: cicciopasticcio on February 14, 2017, 23:53:16 PM
Hi Marco,
Welcome to the forum :)
Enjoy your Quak build, and do not hesitate to share photos or ask anything :)
Like the others, I used Cyano for my tubes. Then, a second pass, outside, with Cyano accelerator. The cyano becomes hard and really seal the tube to the ribs. Not sure if this is actually "working" but I felt better after I did it :) It's all in my head :)
Hi Fred, thanks! I will share pics for sure. Promise.
I am waiting for the balsa sheets to start the wing build. I think I will try Cyano+activator at first: however the fit between few ribs and the tube is slightly loose. so I may use epoxy as well where needed (I have a new UHU plus 90 minutes box). Or do you think Cyano+activator can be just fine also for loose fit? I never built a wing with a carbon tube spar so far..
Thanks and see you soon ,
Marco
Post by: Nhalyn on February 15, 2017, 09:01:47 AM
If ribs are just sightly loose, Cyano + Accelerator will be fine, as this tighten the cyano "as it is", so give it volume.
I prefer cyano, as I fell it will live longer and better than quick époxy.
April is comming quick, and I done nothing since last sunday ! Grrrrr... But I will have time for the next two days and week-end. Goal is to have fuse ready for cover on friday. 8) (that's a project... :-[ :-X)
Post by: Nhalyn on February 15, 2017, 09:03:21 AM
But why have covered it in white ? Camouflage ? ;D
Post by: Nhalyn on February 20, 2017, 12:50:49 PM
Lets have a finished rudder... ::)
Hummmm... Fred, I think there is a mistake in the cutting file of the quark : a missing hole in the rib number N0 ! :(
Post by: DannyChapman on March 08, 2017, 17:05:36 PM
Two pressing questions as I'm on the tail and fin:
1. Do people glue the tail(s) onto the axle and incidence rod through the bellcrank? My inclination would be to keep the tail removable, if only for ease of repairing (not that I intend that to be necessary!) and travelling, but if so, what's the best way to keep it in place.
2. After dry-mounting the fin, and cutting through the stringers, I realised that the fin and rudder will be supported mainly by the tail end of the fuselage - behind the incidence pin slot. This isn't as rigid as I would like because of that slot, and the lower part of the fin (that straddles the upper part of the slot) has got a fair amount of give in it so isn't a lot of help. Should I be worried about this? I'm somewhat inclined to sheet the fin with 1mm balsa, cross-grained with the base of the fin, but don't want to add any more weight than necessary.
Post by: johnfireball on March 08, 2017, 21:07:52 PM
Looking good. For the fin I cut a slot down the trailing edge and glued in a carbon rod that extends through the fuselage into a balsa block glued to the bottom fuse sheeting.
John.
Post by: DannyChapman on March 08, 2017, 21:56:40 PM
I'm actually in the process of sheeting the fin (I have some nice 1/32" sheet from long long ago) with the grain running vertically. Hopefully that should stiffen up the bottom of the fin, and therefore reduce the twistability...
Post by: johnfireball on March 09, 2017, 00:38:13 AM
Post by: DannyChapman on March 09, 2017, 01:12:14 AM
Post by: Nhalyn on March 09, 2017, 12:36:48 PM
I've add carbon plate 3x1mm at the rear end of the rudder for the full height and also a small part in the rudder leading edge at the basis. Seems enough strong for me.
Post by: Fred on March 10, 2017, 09:19:10 AM
Sorry, I'm coming after the battle, but no reports of any rudder issues.
Like John, (but without the block) I glued a 4mm carbone tube along the rudder. Landed a few times on the back (ooppss!) and never broke anything :)
I was also thinking making the rudder removable, and use the 4mm tube as the hinge... But never did it.
As far as I know, very few people, if any, sheeted the rudder. Once covered, it's much stronger. but no arm in doing it anyway! :)
Post by: Nhalyn on March 13, 2017, 10:21:48 AM
Some news from the battlefield...
Here is a ready to fly fuse... And believe me, this box contains a full pair of wing... :-[
Well, with a little touch of glue, looks better...
Note that I've add some cross ribs Inside the ailerons and now they are perfectly torsion rigid for nothing more in weight. Perfect for high rools rates !
Right wing is now ready for sanding and covering.
Post by: DannyChapman on March 13, 2017, 11:32:38 AM
I have a numpty question - what do people use/favour for covering? Oracover/Profilm or Solarfilm? Is Oralight too, well, light? Do I need to treat the wood before covering or will that just add unnecessary weight?
The last wood glider I made was a Phase 6 (still going strong, fibreglassed), and before that either tissue or nylon & dope planes. I'm a bit behind the times...
Post by: Nhalyn on March 13, 2017, 13:10:10 PM
Oralight is lighter but also more fragile.
Solarfilm is still good...
Post by: Nhalyn on March 14, 2017, 12:39:29 PM
Post by: Fred on March 14, 2017, 21:19:26 PM
Mine was covered with the cheapo hobbyking semi transparent covering. Worked well.
Otherwise, same as Nhalyn, Oracover or solar are good choices :)
Post by: Nhalyn on March 22, 2017, 09:01:51 AM
It's finished !
(Well, need to create control horn and command for ailerons, and setting center of gravity, but that's all, folks...)
Is it yellow cub or yellow duck ?
QUARK !!! 8) :)
Post by: DannyChapman on March 25, 2017, 22:31:42 PM
Post by: Fred on March 26, 2017, 08:48:25 AM
Post by: Nhalyn on March 27, 2017, 11:20:29 AM
Mine is fully sheeted on the wings.
Final weight is 1.6kg ready to fly.
I need a slope, urgently... ::)
Post by: mario on March 27, 2017, 11:49:31 AM
Post by: Fred on March 27, 2017, 12:34:14 PM
Post by: mario on March 27, 2017, 12:39:15 PM
Post by: Nhalyn on March 27, 2017, 12:55:40 PM
Post by: Fred on March 27, 2017, 14:17:26 PM
Post by: mario on March 27, 2017, 14:29:34 PM
Post by: DannyChapman on April 01, 2017, 23:45:05 PM
Unfortunately I can't fly it tomorrow because... I'm going flying (full size). Life is tough!
I was thinking of adding wavey strips (orange with black borders) on the wings (my daughter likes nemo colours!) - not sure whether to do that with covering (oracover) or paint?
Post by: billscottni on April 02, 2017, 16:43:56 PM
Post by: DannyChapman on April 05, 2017, 23:51:22 PM
So off went the Quark - and wow! It's so sensitive and responsive, even at low speeds. With a touch of flaps it actually stayed up pretty well (though was obviously never going to match the DLG). The wind turned along the slope after a while, but before it did I managed to catch a thermal and gain enough height to do a loop and roll - the roll rate is amazing, and I loved the howl that it produced! After having to land due to lack of lift a few times I thought it best not to push things too hard. Really looking forward to flying this in good conditions!
Post by: Nhalyn on April 12, 2017, 12:49:48 PM
Mine fly also, directly in it's mother country : Ireland ! :-*
After first flight in Enniscorthy by aero towing that shows that it flies very well and do goods aerobatics, I was able to launch it at Mount Leistner for a great aerobatic baptism and tuning time !
What I can say is : WOW ! :-* :-X:-* :-X :-*
I love it ! Such powerful commands !
Also maindeneid my lunack and it's a blast also to play with friends... ::)
Thank you Fred for such a kit ! :-* ;)
Post by: DannyChapman on April 12, 2017, 13:03:06 PM
Mine will be going to Ireland on its holidays later this year :)
Post by: Nhalyn on April 27, 2017, 14:40:56 PM
Post by: Fred on May 08, 2017, 10:49:44 AM
@Danny, well done on your first flight!! Your Quark is really looking good! And don't hesitate to say hello if you are passing by! :)
I can confirm that Nhalyn pretty much tried everything possible on his Quark! And Seeing the smiles, looks like the glider performed! :)
The Square loops were even looking really good! :)
Below are a few photos, more on the event page! :)
Post by: Nhalyn on May 09, 2017, 09:57:56 AM
Thanks for the images !!! :-* :-* :-*
Post by: Fred on May 12, 2017, 07:45:36 AM
It works! :)
https://www.youtube.com/watch?v=JeJriu7iX3s
Post by: Fred on June 13, 2017, 07:57:46 AM
Post by: Nhalyn on June 13, 2017, 09:54:34 AM
Very nice scheme !
And, hum, think that guy will not have enough elevator...
When I see what goes up with 30° of throw, can't imagine what it will be with 80° !!! ???
Wow...
Post by: DannyChapman on August 07, 2017, 22:14:59 PM
https://youtu.be/R_Inobt6fgY
It was lovely to fly. Unfortunately the receiver was glitchy so after a couple of scares I didn't dare fly any more.
Post by: Fred on August 10, 2017, 07:41:01 AM
Glad you like your Quark, and I hope you'll have fun with it for a very long time.
One day, I'll do a fibre glass version, I would love to try.
Post by: Nhalyn on August 10, 2017, 09:03:56 AM
Not a good idea for me... The cool thing 8) with the Quark is that it is full wood build ! So easy to build, easy to repair, not sensible to small scratches and crashes ;D, and durable.
A crack on the slope ? Just fill with thin cyano :-X and continue to fly... Can't do that with fiberglass.
My Psycho 2 is currently in poor status with fuselage in 3 parts after a loss of talent during an inverted vertical reversement. Still to rebuilt, in fact I've built a Quark since this time...
A good improvement for the Quark : don't do that big holes in the rear fuse flank in order to make the fuse more torsional stiff. You will lost 10 or 15 grams on the final weight... Maybe 20gr ? On a glider that weights 1200 to 1600gr ??? That's the weak point of this glider...
Post by: Fred on August 13, 2017, 14:55:09 PM
And the choice of wood may have also explain its success. "Easy" to build, affordable, easy to fix, and can be modify to suits your needs (make it very light, normal, heavy, electric, stiff etc etc).
I also like a 2.5 or 3m version (was designed to be 3m originally), but the 2 meters one is easier to transport everywhere :)
For the back holes, true, I can remove them on future cuts. Not sure how much you gain really in weight, as the balsa I use is very light. Less than 10 grs at the back I'd say. I'll have a look, but that is a very simple change :)
Post by: DannyChapman on August 15, 2017, 12:23:53 PM
https://youtu.be/nST_VUXO6mU (https://youtu.be/nST_VUXO6mU)
I'm not sure I'd dare try the crazy snap reversal around 0:36 but I'd love to know if it works on the real Quark!
If you want to/can test it so I can refine the behaviour, a Windows installer is here:
https://www.dropbox.com/s/dyuw8rtxsthk7dn/PicaSim-Installer-Quark1.exe?dl=0 (https://www.dropbox.com/s/dyuw8rtxsthk7dn/PicaSim-Installer-Quark1.exe?dl=0)
I just noticed I haven't yet made a correct thumbnail for it in the description/selection part of the application.
Post by: johnfireball on August 16, 2017, 01:15:37 AM
Donald Trump.
Well done, downloaded it, have to try.
Post by: Nhalyn on August 17, 2017, 11:32:18 AM
I also like a 2.5 or 3m version (was designed to be 3m originally), but the 2 meters one is easier to transport everywhere :)
I think that the 2 meters version is the best compromise for this aerobatic very dedicated glider.
Volume of the glider is not that small (big fuselage) and not that easy to hide in the car instead of madam wanting a calm week-end near that beautiful slope... ;D
More seriously, the 2m version can fly everywhere and you can have it always with you. Even on smallest slopes, even on high mountains with 30 minutes walk-to with other gliders on your bag, etc...
A 3 meters version should be really competitive and great but very big ! Not that easy to launch alone and not motivated to launch on weak conditions (where you will have a try with the 2 meters's)
In fact, if you look at history and to the "Voltij'" full composite glider from Toulouse manufacturer "Aeromod", it was a 2 meters class glider, a very good one (I've got one !). There was also a 4 meters version (scale 2 !) that was awesome, but it was no more an easy glider ! Weight was 12kg to 18kg dependant of pilots style, but was far better around 15kg, that means not self launchable on slopes, and even with help hard to launch. On flat field a big tow plane was needed, and it was an aerobatic only glider... It was very impressive to see it fly, like a big whale doing aerobatic effortissevely close to you. I even fly one, one or two times on a flat field, and it was a blast ! But that's the one that you fly only few times a year...
A 4 meters scale 2 Quark should be very fun builded very light like 8 kg... To fly on slope close to you... Based on my Quark weight, 1.6kg, a scale 2 glider should be around 8x this mass, that means 12.8kg... That's coherent with Voltij' experience but leads to the same conclusion... Fly not that much if you can't go to slope directly with your car and have not a good launcher or bungy ! :'(
Would prefer to have a big modern scale model like ASH26 at 5 meters... More polyvalent, can do thermal flight and high speed flight with aerobatics for the same weight...
Post by: Beachy68 on August 25, 2017, 08:05:49 AM
Post by: Nhalyn on August 25, 2017, 09:13:22 AM
Looks fine, she should fly... :)
Post by: Beachy68 on September 05, 2017, 20:32:02 PM
Post by: billscottni on September 05, 2017, 21:01:43 PM
Post by: Beachy68 on September 11, 2017, 20:31:19 PM
Post by: jonboshoff on November 04, 2017, 16:26:57 PM
My next project is the Quark 2m, and I have already cut the foam wing cores and plan to eventually glass the whole thing.
My question is this: What is the modified stabiliser airfoil section number, as I would like to cut foam cores for it (I know.....the wood version is perfectly good, but I want to try anyway!)
Any help would be greatly appreciated.
Post by: Fred on November 06, 2017, 20:33:37 PM
On top of my head, this is a NACA 009 (classic, nothing fancy :) )
Keep us posted with your progress! (The Quark was originally designed as a foam wing, FG gider!)
Post by: jonboshoff on November 10, 2017, 09:27:05 AM
Post by: Fred on November 10, 2017, 15:12:25 PM
Some of you might have encountered my R/C simulator (http://rowlhouse.co.uk/PicaSim/ (http://rowlhouse.co.uk/PicaSim/)) which has a subtle bias towards gliders :) I've created a Quark for it, and have been setting it up following my flying time during holidays in Ireland. I think I'm pretty happy with it, though I'd need to fly the real thing again to confirm. Here's a video - flying in moderate winds, very little turbulence (less than I had in Ireland), and on a big hill:
https://youtu.be/nST_VUXO6mU (https://youtu.be/nST_VUXO6mU)
I'm not sure I'd dare try the crazy snap reversal around 0:36 but I'd love to know if it works on the real Quark!
If you want to/can test it so I can refine the behaviour, a Windows installer is here:
https://www.dropbox.com/s/dyuw8rtxsthk7dn/PicaSim-Installer-Quark1.exe?dl=0 (https://www.dropbox.com/s/dyuw8rtxsthk7dn/PicaSim-Installer-Quark1.exe?dl=0)
I just noticed I haven't yet made a correct thumbnail for it in the description/selection part of the application.
WTF!?!? :-[ Was looking for a photo, and found the above! How did I missed your post Danny!!? :-[
I did not knew you were the creator of what is most certainly the best Slope simulator in the known Universe! And having the Quark on it is a real honor!!
I can only encourage people to download/donate for PicaSim, especially during building season to keep your piloting skills sharp, or to discover new moves!
I go back in my cave :-X
Post by: rogallo on November 10, 2017, 16:12:01 PM
Post by: Fred on November 10, 2017, 16:41:32 PM
Post by: rogallo on November 10, 2017, 16:42:34 PM
Post by: Fred on November 10, 2017, 16:47:07 PM
Post by: DannyChapman on December 31, 2017, 12:47:39 PM
https://youtu.be/nST_VUXO6mU (https://youtu.be/nST_VUXO6mU)
I'm not sure I'd dare try the crazy snap reversal around 0:36 but I'd love to know if it works on the real Quark!
I tried it today - it does indeed work on the real thing!
Post by: Fred on January 04, 2018, 11:08:44 AM
Post by: DannyChapman on January 04, 2018, 13:13:01 PM
https://youtu.be/89dJg3ac7PU
I tried this on my Phase 6 earlier in the year and it mostly worked - even though the elevator throw on the P6 is quite tame (I had my keychain cam on it... recording... but with the lens cap on grrr!). Not quite sure the Quark would take the stress - certainly I'd want to reinforce the hole in the elevator crank as it's rather near the top - closer on mine than this one:
(http://www.jivaro-models.org/quark_2m/quark_2m_06.jpg)
Post by: Fred on January 05, 2018, 09:08:04 AM
Alternatively, I 3D printed a couple of bellcranks as a test, and they are not bad at all (although, I never broke the plywood one, even after some "rough" landings :-[ )
PM me your address, and I can send you one in an envelope :)
Post by: Fred on January 11, 2018, 21:32:00 PM
Post by: johnfireball on January 11, 2018, 23:21:18 PM
Post by: johnfireball on January 11, 2018, 23:30:56 PM
Post by: johnfireball on January 11, 2018, 23:46:00 PM
Post by: Fred on January 12, 2018, 07:18:08 AM
Post by: jonboshoff on April 25, 2018, 18:22:04 PM
Here are a couple of pics of my Quark which I finally finished today. Foam core wings and stab and a live hinge for the ailerons. It was my first crack at cutting my own wings, vac bagging them etc and it was an enjoyable learning experience. Hoping to maiden in the next week or so weather and winds permitting. The info on the forum was very helpful, thanks to all for providing it!
Post by: billscottni on April 25, 2018, 19:53:20 PM
Post by: jonboshoff on April 26, 2018, 21:06:38 PM
Post by: Fred on April 27, 2018, 17:25:48 PM
And glad the first flight went well! That always stress me out, and I hope you'll enjoy many hours of flying with your Quark!
And you are more than welcome, but ultimately, you did all the building work, so you deserve the congrats! :-[
Post by: alibodin on June 21, 2018, 15:50:51 PM
What settings are best for this model is it worth having snap flap, so ailerons go slightly down when pulling up and go slightly up when pushing down?
Alistair
Post by: Fred on July 02, 2018, 14:02:21 PM
Good to hear from you, and hope all is well :)
Apologies for the silence, catching up!
Interesting question I have to say!
At first, I would not have seen a huge advantage to have snapfaps on the Quark... But! I saw one flying in May with them, and I have to say, it was quite nice!
In fairness, he had extra elevator also, not by a massive amount, but more nonetheless, and was doing flips with ease!
So, yes, why not trying :) I would start with a 50% setup and see how it goes. On a switch so you can enable/disable it during your test :)
Post by: alibodin on July 04, 2018, 16:09:02 PM
Alistair
Post by: Ezratic on February 15, 2019, 18:16:52 PM
My name is Ezra, I live in Northern Arizona . There are some good flying sites in the neighborhood and the windy season is right around the corner.
The Quark 2 caught my eye years ago and I can't take it any more so I'm going after it!
Plans printed, using tracing paper method to cut out parts, tail feathers started.
Studying plans, online posts and sifting through the process, ordering carbon and more balsa.
The goal, build and fly.
Thanks for the cool design and plans Fred, really like the look of this plane.
Cheers
Post by: rogallo on February 16, 2019, 08:33:17 AM
Looking good, welcome to our forum.
Rogallo
Post by: Ezratic on February 17, 2019, 20:13:04 PM
Chipping away at it, Luckily the weather is nasty and I'm able to get some work done on Q2M
Post by: Fred on February 18, 2019, 11:09:59 AM
Welcome to the forum!! :)
Good start on the Quark, and hopefully, you will enjoy the flying even more!!
If you haven't seen it yet, you can download PicaSim, and test the Quark (it is an honor to have the Q2M in this Sim!!), but please, keep us posted of your progress :)
Post by: Ezratic on February 20, 2019, 16:13:06 PM
Thanks for the warm welcome.
Looking forward to getting this bird in the air.
Scratch building from plans is no joke, lots of details so hopefully it wont take an eternity.
I'm cracking away at it.
Just noticed the Lunak 2M. Is that also your design? Looks like the wing spar system has been changed a bit,to make it lighter,
stronger, or easier to build?
Cheers
Post by: Fred on February 25, 2019, 08:26:45 AM
Indeed, the Lunak 2M is mine :) Same idea as the micro quark/Micro Lunak. They share the same wing, just the fuselage is different :)
Spars are 10x5mm wood. Cheaper, and easier to find (at least here!) than carbon tubes. Not sure about the weight I have to say, never really weight my gliders, but that should be around the same ish.
The Lunak wing is also designed with added flaps in mind from the get go, as some people were adding them on the Quark too, and seems to help the landing on tight spaces :)
Post by: Ezratic on March 05, 2019, 05:44:25 AM
Post by: Ezratic on May 20, 2019, 19:02:00 PM
Got the ailerons done, cutting out some ribs still and currently getting the sides of the fuse finished. Took 2 months for some of the wood to come from my supplier, they had to find some trees to cut down :)
Got all the carbon, just got to get cracking and pull my fingers out.
Airplanes on the slope: Le Fish, Madslide variation, Flying wing/Madslide creation. At Sheba crater Northern AZ
Post by: Haoyang Wang on August 26, 2019, 10:20:24 AM
Is this a good idea, or just adding weight unnecessarily?
How do you wrap around the nose? (Cut the fiberglass cloth into how many pieces, etc.) Or just cover the bottom part, and don't worry about the top of the nose?
Thank you,
Haoyang
Post by: rogallo on August 26, 2019, 19:00:55 PM
Good luck
Rogallo
Post by: Haoyang Wang on August 26, 2019, 22:29:19 PM
Don't fix it if it ain't broken. Model flies well. Does not need reinforcement. Many built and flown without mods.Well, I am not worrying about flying, but landing...
Good luck
Rogallo
In any case, I think you are right. The front feel quite solid already without covering. Just Oracover, then. (All the compound curves... :P)
Thank you for the suggestions.
Haoyang
Post by: Haoyang Wang on September 22, 2019, 23:47:44 PM
Post by: rogallo on September 23, 2019, 06:12:40 AM
Rogallo
Post by: Haoyang Wang on September 24, 2019, 22:06:07 PM
Before the flight I was worrying about the weight, but it was able to float in the same light lifts alongside Ahis, while penetrating better when it started to blow. Tail authority is amazing even around stalls.
;D
Post by: ozkan1001 on September 01, 2020, 14:09:14 PM
Hello there. I'm from Turkey. I build this glider too. I'll share photos with you soon
Post by: Fred on September 05, 2020, 09:58:46 AM
Welcome to the forum! :) looking forward to see your build.
Post by: scruffmeister on September 15, 2020, 21:50:22 PM
Post by: Fred on September 28, 2020, 16:45:49 PM
They should still be available on the Jivaro-models website.
Post by: billscottni on September 28, 2020, 16:54:46 PM
Post by: scruffmeister on September 28, 2020, 21:04:46 PM
Post by: Hibou One Kenobi on October 05, 2020, 14:50:05 PM
I've seen this forum during the lockdown (in France) and i fell in love for the Quark 2M from Jivaro model.
I just tried it once this summer and the glider is just amazing, it's a real pleasure to make acro flight next to the floor!
After that, I put some colors on the glider, at the end, the weight is 1.7kg :-X I'll use that when the wind is blowing !
Some pictures about my plane :
(https://image.noelshack.com/minis/2020/41/1/1601905214-img-20200503-155744.png) (https://www.noelshack.com/2020-41-1-1601905214-img-20200503-155744.jpg)
(https://image.noelshack.com/minis/2020/41/1/1601905224-img-20201004-132206.png) (https://www.noelshack.com/2020-41-1-1601905224-img-20201004-132206.jpg)
(https://image.noelshack.com/minis/2020/41/1/1601905230-img-20201004-132357.png) (https://www.noelshack.com/2020-41-1-1601905230-img-20201004-132357.jpg)
(https://image.noelshack.com/minis/2020/41/1/1601905236-img-20201004-132305.png) (https://www.noelshack.com/2020-41-1-1601905236-img-20201004-132305.jpg)
Special thank's to Jivaro Model to share some plans of a lots of Gliders!
Post by: Ezratic on November 29, 2020, 21:09:50 PM
Plane looks fantastic, nice graphics job!
Any footage of flying?
Post by: Bavo on August 24, 2021, 10:20:44 AM
I just finished my quark a couple of weeks ago, thanks for all the useful info and pictures in this thread! :D
I decided to spit the ailerons and add flaps, not sure this really helps the roll rate but landings are really easy using butterfly!
here's a movie of my Quark at Cap Blanc Nez in France:
https://youtu.be/MQHK4wrMSsk
Post by: Ezratic on October 19, 2021, 02:19:21 AM
My Quark is 3/4 of the way done, covering it up and finishing control rods and cables.
Excited to get it out there and see how it flies.
Post by: Ezratic on March 28, 2022, 17:51:33 PM
Flies very nice, best of all my planes. Thanks for the plans and inspiration.
Post by: trasher37 on October 24, 2023, 20:18:47 PM
My Quark is near finished, and I was wondering about tow hook position: bottom centered or aside for easier access?
Any pics welcome!
Thanks.
Post by: Fred on October 31, 2023, 20:59:40 PM
Definitely on the side! If not too late, I think I have a couple of photos somewhere. I can check if you still need them
Post by: trasher37 on November 27, 2023, 22:00:03 PM
Thanks for the answer. Unfortunately my model air club has been forced to close due to construction project; so I must have to find an accessible slope. Nevertheless, I would be interested to see your tow hook pics.
Bye.
Post by: Guysie123 on November 17, 2024, 14:38:34 PM
Quick question, what are these wing profiles for? They’re the same profile as wing tips N11 but unnumbered and full span in length.
Any advice would be much appreciated.
Thanks, Guy
Post by: Guysie123 on February 12, 2025, 21:36:55 PM
Great kit Fred and everything fitted together very nicely.
Detachable tail to help with the transportation.
Might make a second nose at some point with motor as an electric conversion.
C of G is currently 79mm from LE at root, does that feel about right?
Any advice on CG position from anyone would be greatly appreciated.
Thanks
Post by: Fred on February 21, 2025, 20:35:35 PM
Sorry for the delayed reply!
Your Quark looks fantastic! Looks like the V4 no?
For the CofG, correct, 79mm from LE is what everybody agree on. You can go either way from that point 10mm back or forward without too much problems.
Anyway, Quark is really looking good! Wish you all the best for the first flight, and hopefully, a lot of fun! :)
Keep us posted of course :)
Fred
Post by: Guysie123 on February 22, 2025, 12:10:24 PM
Many thanks for the CG info, very grateful.
Keeping fingers crossed for some good flying weather in May, looking forward to throwing it off the slopes! The South Downs near Eastbourne (England) is our usual spot with a good variety for most wind directions.
Will keep you posted.
Best
Guy