Author Topic: ASH25 - 1/4 scale  (Read 35491 times)

Fred

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ASH25 - 1/4 scale
« on: January 15, 2012, 10:25:23 AM »
Alright, time to get some old projects to move forward!

This time, next on the line, is my ASH25.
A few specs :

Fuselage lenght : 2.10m
Wing Span : 6.5m
Profile : E68 - 67 - 66 evolution
Weight : should be around 10 - 11 Kgs

The fuselage (look at that smily face!  :D )






The fuselage come from Gewalt, everything else will be hand made.
A bit of work was already done. I made the tailplane more than a year ago, and the wing cores were cut by Joe (thanks Joe  :clap: ).
And that take room!

As a reminder, I use this method for my wing spars :
http://www.gliderireland.net/index.php/techniques/vertical-wing-spars

Wings will be in 2 pieces.

So first, you start with the wing sheeting, the top first. The sheets are linked the usual way for this kind of work, evrything is glued with PU, and bagged for 24 hrs.
That gives you this stuff :









You can see here the "channel" for the vertical spar, before being cut all the way through. This way the profile is not "disturbed".



With a screw driver in my case, remove the remaining foam, and free the slot for the spar





It is very important to do all the work on the wing,while they seat on their foam cores to make sure they are straight!

Like on the mini how to link, the spar is then added, and cut to size.



The spar will be epoxied in place, wrapped in carbone, and everything will be bagged to make sure everything stays where they supposed to be!

More photos soon! (still drying!)
Education is important, but flying RC planes and gliders is importanter!

billscottni

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ASH25 - 1/4 scale
« Reply #1 on: January 15, 2012, 12:13:10 PM »
Beautiful fuselage Fred, but I think you need a better looking model :wink:

Be really interested in seeing that fly :clap:

Alan_Perse

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« Reply #2 on: January 15, 2012, 15:03:56 PM »
Great job Fred. Very informative. Keep the pictures coming.

Happy Days

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« Reply #3 on: January 15, 2012, 15:13:53 PM »
Fred,...what do you mean by "Bagged"? Are you vacuum bagging this wing?

K. :?:
Try not to run out of airspeed, altitude and ideas....... all at the same time.

Fred

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« Reply #4 on: January 15, 2012, 15:25:23 PM »
Thanks guys :)

Keith, yep, the wings are vacuum bagged
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erwan

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« Reply #5 on: January 15, 2012, 20:47:56 PM »
falut Sred

11 kilos, ca me parait un peu light pour cette taille de machine. Pour info je pense sortir le DG pour 14 ou 15 kilos.

a+
La mouche qui pète ..

Fred

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« Reply #6 on: January 16, 2012, 08:21:45 AM »
Salut Air One,

Bah non, ca reste quand meme une machine au 1/4, donc assez petit  :D
Bon, comme tu m'as mis un doute, j'ai fouillé le Interweb, et chez les GPR, un gars le sort au 1/4 a 8kgs  :D

About the glider projected weight, I say 10 / 11Kgs, but 14Kgs seems more realistic.. In fact, even if the WS is 6.5m, this is still only a 1/4 scale machine.
Looked over the internet for some reference, and some guys are doing it at 8Kgs  :D
Education is important, but flying RC planes and gliders is importanter!

mario

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« Reply #7 on: January 16, 2012, 17:00:14 PM »
bon ça vole en avril :mrgreen:
si t as pas d amis, prends un curly

orionis

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ASH25 - 1/4 scale
« Reply #8 on: January 16, 2012, 18:58:54 PM »
En avril? Pff, dans 15 jours, oui [mode pression ON]

the Pope

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« Reply #9 on: January 18, 2012, 08:35:10 AM »
OHH  joli projet.
Fred, t'es pas obligé de faire la gueule, sur les photos........ :lol:
melon et melèche............

Fred

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« Reply #10 on: January 18, 2012, 13:02:38 PM »
Yeah, that's to scare the crows!  :lol:

April.. hmmm, too cold in the garage for the resin  :!:
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mat2verre

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ASH25 - 1/4 scale
« Reply #11 on: January 18, 2012, 17:24:15 PM »
Hooo que c'est bôôôôô! Fais pas la gueule Fred!!!

Biz @+

Mat
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Fred

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« Reply #12 on: January 18, 2012, 19:08:42 PM »
Je suis pas tibulaire, mais presque  :mrgreen:

(can't translate that!  :P )
Education is important, but flying RC planes and gliders is importanter!

mario

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« Reply #13 on: January 18, 2012, 19:14:12 PM »
utilise la polyester , c est moins chiant :mrgreen:
si t as pas d amis, prends un curly

Fred

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« Reply #14 on: January 18, 2012, 19:28:52 PM »
:lol:  :P  :P
Education is important, but flying RC planes and gliders is importanter!