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Old Nov 12, 2010, 02:10 PM
Registered User
Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
241 Posts
Michael, Carbon plane does not crash ever.
Carbon takes all the blows without injury.
Such aircraft best for learning.
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Old Nov 13, 2010, 04:10 AM
Janne Lappi, F3A Team Finland
JanneL's Avatar
Helsinki, Finland
Joined Sep 2008
129 Posts
Hello metrorcflying,

you can order mylar from Woodhouse, UK. http://www.freeflightsupplies.co.uk/


Janne
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Old Nov 13, 2010, 08:27 AM
Fly long and land softly
Jim_Marconnet's Avatar
Madison, Alabama USA
Joined Oct 2005
5,337 Posts
Quote:
Originally Posted by Lantsov Alexey View Post
Michael, Carbon plane does not crash ever.
Carbon takes all the blows without injury.
Such aircraft best for learning.
Glad to hear it!

Thanks for pointing me to Post #6 for the joint details. When I looked closer at the one close-up photo, I could see the wrapping thread.

I'm surprised that this works for you with CA. My attempts of repairing Vapor landing gear where it meets the fuselage tube and for repairing the motor/gearbox mounts has not worked out well for me with CA. I think the CA somehow stiffens the thread so much that it breaks on impact. Actually, my first attempts were using carbon TOW. Later I tried cotton sewing thread with similar disappointing results. Perhaps I used the wrong CA or something. I eventually settled on using 30 minute epoxy over sewing thread. That's strong, and more foregiving. Probably heavier, too.

Anyway, thanks for sharing all you have on this technique, your plane design, and the terrific videos.

My real interest is in something small and extremely light and slow-flying, like a Vapor, but with ailerons. Not sure how I'll proceed on that. I don't really care about fuselage side area for knife edge flight.

Jim
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Old Nov 13, 2010, 11:46 AM
Old Fogey-ish
United States, WA, Vancouver
Joined Aug 2010
2,117 Posts
aileron vapor

Quote:
Originally Posted by Jim_Marconnet View Post
Glad to hear it!

Thanks for pointing me to Post #6 for the joint details. When I looked closer at the one close-up photo, I could see the wrapping thread.

I'm surprised that this works for you with CA. My attempts of repairing Vapor landing gear where it meets the fuselage tube and for repairing the motor/gearbox mounts has not worked out well for me with CA. I think the CA somehow stiffens the thread so much that it breaks on impact. Actually, my first attempts were using carbon TOW. Later I tried cotton sewing thread with similar disappointing results. Perhaps I used the wrong CA or something. I eventually settled on using 30 minute epoxy over sewing thread. That's strong, and more foregiving. Probably heavier, too.

Anyway, thanks for sharing all you have on this technique, your plane design, and the terrific videos.

My real interest is in something small and extremely light and slow-flying, like a Vapor, but with ailerons. Not sure how I'll proceed on that. I don't really care about fuselage side area for knife edge flight.

Jim
Jim,

Here's a link to a thread about an aileron vapor made by Gordon Johnson.
http://www.rcgroups.com/forums/showthread.php?t=1217934
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Old Nov 13, 2010, 11:52 AM
Registered User
3Don's Avatar
Joined Nov 2004
961 Posts
Quote:
Originally Posted by Lantsov Alexey View Post
I will be flying in competitions in Byelorussia and Russia.
Go to European competition is very desirable.
I think you forgot to add Lithuania my friend We book date for our third open F3A championship for 2011 03 05-06, you same as Evgenij are invited. Soon we will launch competition website with all information, this year event will be registered at FAI calendar.

It would be very nice to see your new plane.

D.
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Old Nov 14, 2010, 04:32 PM
Registered User
Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
241 Posts
My friend Anatoly Morozov made carbon aircraft "MORANA.
Weight: 40 grams.
Wingspan 650 mm.
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Old Nov 14, 2010, 04:40 PM
Registered User
Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
241 Posts
Donatas, thank you for inviting me to your competition in Lithuania.
For me it is very interesting.
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Old Nov 19, 2010, 06:21 AM
Registered User
Ampbomber's Avatar
Michigan
Joined Aug 2002
318 Posts
Alexey,

That is the most amazing indoor plane I have ever seen! After seeing the video I just have to build one.

Do you have a top and side view drawing that you would like to share? Also, I see that you have used an aluminum tube (?) "back bone" in the fuse.

I can see that you have a lot of time invested in the assembly of the airframe and would like to know some of the assembly tricks or problems you had to invent or solve to build the airframe.

What was the bare airframe weight shown in the picture?

Thanks,

George
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Old Nov 19, 2010, 07:56 AM
Registered User
Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
241 Posts
Hi George .
Central tube of 6 mm, wall thickness 0.1 mm made of carbon-coated metallized Mylar 3 microns.
Weight of the aircraft without the Mylar 31 grams, with Mylar and painting 36 grams.
I'll be glad if my technology will help many people.
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Old Nov 19, 2010, 08:38 AM
Registered User
Ampbomber's Avatar
Michigan
Joined Aug 2002
318 Posts
Alexey,

Thanks for getting back so fast.

Here are few more questions:

Did you build the top and bottom parts of the fuse seperately and then fasten to the CF tube "back bone"?

Same question for the wing, two seperate halves and then attached to the CF tube?

Any close up pictures of the motor mount and tail section?


Thanks again,

George
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Old Nov 19, 2010, 09:10 AM
Registered User
Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
241 Posts
Look post 682 http://forum.rcdesign.ru/f86/thread129147-18.html
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Old Nov 19, 2010, 12:11 PM
Inspired by the wings of an An
Andycap's Avatar
Leeds
Joined Mar 2003
1,934 Posts
Hi Alexey,

What size carbon fibre rods do you use?

Andy
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Old Nov 19, 2010, 01:16 PM
Registered User
Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
241 Posts
Andy .
I use a 1-mm and 0.6 mm
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Old Nov 21, 2010, 06:57 AM
Registered User
Ampbomber's Avatar
Michigan
Joined Aug 2002
318 Posts
Alexey,

More Questions:

What was your source for the "backbone" CF tube? What did it weigh?

What CF weigh and number of layers did you layup the prop with? Any pictures?

Thanks,

George
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Old Nov 21, 2010, 09:21 AM
Registered User
Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
241 Posts
Carbon tube made of a single layer of fabric 0,1 mm.
Is it handmade
Weight 2 grams.
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