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Thread OP
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Discussion
Trainer type plane
Here is a plane I built so I could let some friends try to fly on a buddy box. I wanted a easy to build and fly and it sure is.
The motor is an E-Max 2812 1534kv with a gws 8x4 dd prop, 18a turnigy esc, 1000ma 3s lipo, hxt 9g servos. Wing is a Kfm3 airfoil 50" span. The center is 36" with 7" tips. The tips have a 2 1/2" rise. The first step is 3" and the second is 2" back from the first. Cord is 9" total. The body is a Cf arrow shaft 32" long. The pod is 1 1/2" thick 3" wide 14" long pink foam. The hor stab is 16" wide 8" cord with a 2" elevator. The vert stab is 8 1/2" tall 10" base cord 5 1/2" top cord with a 3" rudder. AUW is 16oz. Here are a couple of videos and a few pics. If I missed anything let me know. Russ
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Last edited by Russ40; Jul 25, 2010 at 03:01 PM.
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I am impressed. Looks like a quick and simple design. And it flys great!!!! I am surprised that it flys inverted so well with that type of wing. Plus the rolls with RET are great! Plus it does all of this at a slow flying speed. Have you tried a inverted loop? The "Fuse" looks like a quick and effective way to go. Are there any reinforcements in the wing or tail pieces?
It is a real winner... I have a arrow shaft that needs some wings! Ray .......edit....... I posted after looking at the second video. I just looked at the first and saw the ailerons. It is impressive. |
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Last edited by High Flyin'; Jul 25, 2010 at 04:28 PM.
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Thread OP
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Thanks guys..
Ray...I have a smaller arrow shaft in front of the second step under the first step. It is about 1/4" dia and 31" long. I got a bargin on cf arrow shafts at a dollar each so that is what I have been using lately. It will do an outside loop nicely. Russ |
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Hey Russ,
You've certainly built an interesting airplane that looks well suited for beginners. I didn't see it mentioned, but it certainly looks to be an excellent aileron trainer as well. I'd love to see a split screen of your thumbs and the plane at the same time your doing your rolls. Does it hold altitude well while rolling or are you working hard to maintain level flight? I'm going to build one to share with friends. Too cool! Thank you for sharing. Warm regards, Jim |
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You did it again Russ, nice simple design yet effective. Looks like and takes off about as quick as my Yard Stick, but no ailerons on that one.
I was going to build a smaller version of the Yard Stick to fly around the tight back yard (230ftx100ft), looks like you just got me started at my base! ![]() |
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Russ
Could you measure from the firewall/motor mount back to the leading edge of the wing and the front of the horizontal stabilizer? Also the CG of the wing? Thanks, Ray |
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hey that is quite a sweet plane,
would it be possible to get a simple drawing please ![]() i am building a bb atm, but this looks very robust, and would make for a great second build ![]() |
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Russ, check the PM I sent a few days ago. I have a drawing with all of the dimensions you've given so far and only need a couple more for it to be complete. I'll be happy to finish it for posting if you wish.
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