Composite design F 3 P - Page 6 - RC Groups
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Dec 07, 2010, 03:13 PM
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Lantsov Alexey's Avatar
For competitions in Lithuania, started to build SUltimate.
Thank Donatas for any drawings.
I will show all the stages of construction.
All necessary for a start.
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Dec 07, 2010, 03:19 PM
Inspired by the wings of an An
Andycap's Avatar
Carbon Sultimate this is going to be very interesting Alexey
Dec 08, 2010, 05:08 AM
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Ampbomber's Avatar
Alexey,

Since your construction technique and planes are so unique this will answer many questions I have.

Thanks for sharing,

George
Dec 08, 2010, 12:24 PM
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richard boyd's Avatar
Hi, this is very interesting building solution.
Thanks for showing us your skills.

Richard
Dec 08, 2010, 01:02 PM
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3Don's Avatar
That looks so good, im curious what weight you will get also looking forward to test it

D.
Dec 08, 2010, 02:45 PM
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Lantsov Alexey's Avatar
Put in a carbon tube.
Kevlar thread with CA glue
Dec 08, 2010, 04:37 PM
Registered User
Lantsov Alexey's Avatar
Pierced the fuselage tube with two carbon rods.
Make a right wing.
All this is done in one day.
Dec 08, 2010, 05:13 PM
Registered User
... I can't imagine we will see an ARF of this anytime soon

Looks awesome !!
Jim
Dec 08, 2010, 05:24 PM
Fly long and land softly
Jim_Marconnet's Avatar
I really appreciate this build sequence of nice photos.

If you know, how did you decide how many cross-braces, or whatever you call them, to use? I.E. How did you know to use, say, 13 X along the fuselage, not 6 or 20? Is there perhaps a preferred crossing angle between the various carbon pieces? I see several different crossing angles at different points along the fuselage length.

Is it based on a "good" maximum unsupported length along the fuselage exterior carbon?

Is it a That Looks About Right (TLAR) judgement?

My thinking is that perhaps you could use quite a fewer X and save some cost, labor, and weight. But then it would be less stiff. But in some places, less stiff could be desirable for impact-resistance.

Perhaps you did a finite element analysis of the planned design and then modified it for some measure of merit, like uniform displacement or twisting under load? Probably Not! :-)

Thanks so much!
Jim
Dec 08, 2010, 05:51 PM
Registered User
Lantsov Alexey's Avatar
Jim .
I did a lot of these aircraft.
All the calculations in my head.
Dec 08, 2010, 05:54 PM
Inspired by the wings of an An
Andycap's Avatar
Quote:
Originally Posted by Lantsov Alexey
Jim .
I did a lot of these aircraft.
All the calculations in my head.
A man who works the same way as me...

If in doubt guess, if it doesnt work try again
Dec 08, 2010, 06:57 PM
Beatiful!

The carbon tube looks a lot like a F1G tail boom, any relation?
Dec 13, 2010, 02:19 PM
Registered User
Lantsov Alexey's Avatar
Sorry for the delay.
Work interferes entertainment.
Made wing and aileron.
Dec 13, 2010, 03:04 PM
Usedbombistan
Doug Cronkhite's Avatar
Абсолютно красивые работы Алексей. Воздушная работа!


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