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Post  akjgardner Sat Jun 20, 2015 8:10 pm

cardboard wing on baby ringmaster 11510


Last edited by akjgardner on Mon Sep 07, 2015 7:10 pm; edited 1 time in total
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Post  akjgardner Sat Jun 20, 2015 8:13 pm

built this wing out of a piece of cardboard folded at a corregated row to form the airfoil and a surprisingly strong spar. Hope it flys


Last edited by akjgardner on Sat Jun 20, 2015 8:17 pm; edited 1 time in total
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Post  akjgardner Sat Jun 20, 2015 8:16 pm

url=https://servimg.com/view/19124486/37]cardboard wing on baby ringmaster 11410[/url]
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Post  NEW222 Sat Jun 20, 2015 8:46 pm

That is cool. I would like to know the outcome. What is it covered with, and is the airfoil on the top only, or is it diamond shaped (top and bottom)?
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Post  JPvelo Sat Jun 20, 2015 9:20 pm

Very cool. Over the years I've seen a few plan for scale models built from cardboard.

Jim
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Post  akjgardner Sat Jun 20, 2015 10:40 pm

@NEW222 wrote:That is cool.  I would like to know the outcome.  What is it covered with, and is the airfoil on the top only, or is it diamond shaped (top and bottom)?
thanks. the air foil is top only to cut down on weight and i used ultracoat covering
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Post  akjgardner Wed Jul 08, 2015 4:40 pm

url=https://servimg.com/view/19124486/41]cardboard wing on baby ringmaster 03013[/url]
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Post  akjgardner Wed Jul 08, 2015 4:44 pm

ALMOST FINISHED....made the horizontle stab and elevator out of cardboard as well.I was surprised how sturdy this lil fella was and light too
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Post  akjgardner Mon Sep 07, 2015 7:10 pm

Flying this tomorrow, 1'st control line flight in 40 or so years. Wish me luck
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Post  happydad Mon Sep 07, 2015 8:00 pm

@akjgardner wrote:ALMOST FINISHED....made the horizontle stab and elevator out of cardboard as well.I was surprised how sturdy this lil fella was and light too

So what is the finished weight of the plane with and without the engine?
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Post  dckrsn Mon Sep 07, 2015 8:05 pm

Hey- hey, best of luck.....break a leg
and have a blast. If nothing else,
you're getting your feet wet again.
She looks like a fit craft. Keep us posted.
Enjoy!
Bob


Last edited by dckrsn on Tue Sep 08, 2015 3:44 pm; edited 1 time in total
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Post  getback Tue Sep 08, 2015 7:16 am

akjgardner That's really nice looking hope it flys well for you , yes flight report , I have seen a few people making airplane from cardboard but never considered tring it myself . Huh... Eric
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Post  oldguy Wed Dec 16, 2015 1:14 pm

@akjgardner wrote:Flying this tomorrow, 1'st control line flight in 40 or so years. Wish me luck

Hey did it fly?
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Post  akjgardner Wed Dec 16, 2015 5:02 pm

actually no,not yet, ended up geting busy and now it's been to nasty out
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Post  ARUP Sat Dec 19, 2015 8:00 pm

It just might fly better'n a flat winged version!
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Post  RknRusty Sat Dec 19, 2015 11:26 pm

Hey Gardener, I didn't realize you hadn't flown lately, Good luck. I think the planes with diamond shaped wings tend to hunt, in other words, to randomly turn up and down, and resist your attempts to fly level. But your flat bottom(right?) may change everything and fly great I know you can take a flat wing and build up a ridge behind the LE and it provides decent lift. Maybe yours will act that way. If you finish your flight wondering how you could possibly be so bad Lol, it might have been hunting. That would remind me of the time years ago, I didn't know to be serious about tail weight Rolling Eyes My wife said, Wow! That looked like a fun flight. It was all I could do to stand up.
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Post  akjgardner Sun Dec 20, 2015 4:33 am

@RknRusty wrote:Hey Gardener, I didn't realize you hadn't flown lately, Good luck. I think the planes with diamond shaped wings tend to hunt, in other words, to randomly turn up and down, and resist your attempts to fly level. But your flat bottom(right?) may change everything and fly great I know you can take a flat wing and build up a ridge behind the LE and it provides decent lift. Maybe yours will act that way. If you finish your flight wondering how you could possibly be so bad Lol, it might have been hunting. That would remind me of the time years ago, I didn't know to be serious about tail weight Rolling Eyes  My wife said, Wow! That looked like a fun flight. It was all I could do to stand up.
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Thanks for the tip on the wing shape Rusty. I am a newby at CL but am looking foward to flying in the spring.I am building a couple half A's.I did get in a few flights last year and other then getting a little dizzy, didn't do to bad.
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Post  Ken Cook Sun Dec 20, 2015 5:40 am

I never found a diamond shaped wing to hunt due to design but rather they tend to fly poorly. Any of the planes that I had that utilized them flew like stink in level flight but when the plane was put into a maneuver, the speed fell of so rapidly the plane would almost slide and fall out of the maneuver. The Sterling Viper which was Sterling's full body 1/2A used a diamond airfoil. I built one of these in the late 80's and it certainly looked cool. It flew fair but not with any kind of performance. A jumping Bean would run circles around it. When I graduated into larger and faster planes this was even more apparent. The Demon is a combat plane that used the diamond airfoil also . Once again, it seemed the faster the planes went, it was noted how quickly speed bled off. My suggestion would be to fly it fast if your looking for more than level flight.
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Post  roddie Sun Dec 20, 2015 9:29 am

If I were to guess (and I am..) I'd think that there would be a lot of turbulence created where the airfoil makes a sharp corner. Maybe it will prove to be effective applying it to only the top surface? I'd beware flying inverted though. You might need a lot of down-elevator throw.
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Post  akjgardner Thu Jun 15, 2017 7:55 pm

Flew It today with my son, I have not flown in a few years.(40) To my surprise it flew pretty good and I did not get too dizzy. the v shaped wing flew fine . It tried to porpoise a little but not too bad .It got me and my boy excited about flying again. will try to post a small video later.
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Post  Cribbs74 Thu Jun 15, 2017 9:17 pm

@akjgardner wrote:Flew It today with my son, I have not flown in a few years.(40) To my surprise it flew pretty good and I did not get too dizzy. the v shaped wing flew fine . It tried to porpoise a little but not too bad .It got me and my boy excited about flying again. will try to post a small video later.

That's a post that makes me smile! Good going guys!
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Post  getback Fri Jun 16, 2017 8:13 am

Way to go !! good to hear your team is getting out and getting some air time and that the plane did good too . Very Happy
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Post  akjgardner Mon Jun 26, 2017 7:41 pm

cardboard wing on baby ringmaster 02211 The Baby Ringmaster Flew Prettu Good so I built this Stunt man. Hope it flys as well.
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Post  getback Tue Jun 27, 2017 8:47 am

The Stuntman 23 Came out looking good Joe , hope it does as good or better than the ring. Keep us posted !! Airplane cheers
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Post  akjgardner Tue Jun 27, 2017 4:43 pm

@getback wrote:The Stuntman 23 Came out looking good Joe , hope it does as good or better than the ring. Keep us posted !! Airplane cheers
Thanks Eric , This weighs a little more then the Baby ringmaster but this engines a little better . I got a small video of the ringmaster flying but I can't figure out how to post a video on here. I flew it on 40 foot lines (give or take)
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