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Old Dec 07, 2010, 03:13 PM
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Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
262 Posts
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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Old Dec 07, 2010, 03:19 PM
Inspired by the wings of an An
Andycap's Avatar
Leeds
Joined Mar 2003
1,942 Posts
Carbon Sultimate this is going to be very interesting Alexey
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Old Dec 08, 2010, 05:08 AM
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Ampbomber's Avatar
Michigan
Joined Aug 2002
323 Posts
Alexey,

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

Thanks for sharing,

George
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Old Dec 08, 2010, 11:37 AM
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Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
262 Posts
Today made the fuselage.
Photos of the process.
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Old Dec 08, 2010, 12:24 PM
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richard boyd's Avatar
Northern Ireland
Joined May 2006
1,212 Posts
Hi, this is very interesting building solution.
Thanks for showing us your skills.

Richard
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Old Dec 08, 2010, 01:02 PM
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3Don's Avatar
Joined Nov 2004
964 Posts
That looks so good, im curious what weight you will get also looking forward to test it

D.
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Old Dec 08, 2010, 02:45 PM
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Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
262 Posts
Put in a carbon tube.
Kevlar thread with CA glue
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Old Dec 08, 2010, 04:37 PM
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Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
262 Posts
Pierced the fuselage tube with two carbon rods.
Make a right wing.
All this is done in one day.
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Old Dec 08, 2010, 05:13 PM
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Joined Aug 2003
99 Posts
... I can't imagine we will see an ARF of this anytime soon

Looks awesome !!
Jim
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Old Dec 08, 2010, 05:24 PM
Fly long and land softly
Jim_Marconnet's Avatar
Madison, Alabama USA
Joined Oct 2005
5,401 Posts
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
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Old Dec 08, 2010, 05:51 PM
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Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
262 Posts
Jim .
I did a lot of these aircraft.
All the calculations in my head.
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Old Dec 08, 2010, 05:54 PM
Inspired by the wings of an An
Andycap's Avatar
Leeds
Joined Mar 2003
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Quote:
Originally Posted by Lantsov Alexey View Post
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
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Old Dec 08, 2010, 06:57 PM
Joined Nov 2004
244 Posts
Beatiful!

The carbon tube looks a lot like a F1G tail boom, any relation?
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Old Dec 13, 2010, 02:19 PM
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Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
262 Posts
Sorry for the delay.
Work interferes entertainment.
Made wing and aileron.
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Old Dec 13, 2010, 03:04 PM
Team JR
Doug Cronkhite's Avatar
San Diego
Joined Feb 2002
1,824 Posts
Абсолютно красивые работы Алексей. Воздушная работа!
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