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If the Beaver test flight thread hasn't taken over. Here's the link to the CLB II
http://www.rcgroups.com/forums/showt...threadid=95262 |
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Been getting out for about 1 flight every other day or so. In between the Wind and the dark. Yesterday I tried the scale planform wing again (see previouse version of this thread).
http://www.rcgroups.com/forums/showt...ing#post922345 It was made from foamboard with the paper removed from one side. I've lightened it considerably by removing the paper from the top surface as well. It has full length carbon rods along the LE to hold support the foam and provide a rounded edge. Pics were taken without the rods. It looks much better with straight wings. I also removed almost all of the dihedral. It's down to pretty much scale as well. It weighs just about the same as the stock wing which now has the lights taped to it. I'ld forgoten how much more real it looks in the air. Sure needs those floats to complete the illusion! With the lighter scale wing the handling is about the same as the stock wing. AUW is just around 15oz with the 7cell AAA pack. Stall is gentle but it does fall off on the left wing. Recovery is simple counter rudder and let off elevator. Being flat it's not as stable as the stock dihedral of course and it won't recover itself. You have to fly it. It will bank and yank nice and tight but doesn't roll quickly. It stall turns very quickly to the right. Not at all to the left. I even did a loop with it which I'ld never attempt with the stock wing. |
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Last edited by Grejen; Sep 08, 2003 at 05:29 PM.
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More flights
Greg, I have been flying mine again. I found that one of my wing panels had developed a twist and was giving me wash in, jeezzz, the worst possible thing. I used a heat gun very carefully and took the twist out, and she flies great again. If anyone is having trouble with their Beaver that used to fly fine, check out the wings. You too may have wash in ( trailing edge lower at the tip than the leading edge. The other way is ok, wash out, trailing edge higher than the leading edge, but wash in is a disaster waiting to happen. Mine started to fly like crap, so I kinda put it on hold and was flying all my other planes, then I decided, what could have happened to it after 200+ flights to have it suddenly fly lousy. Answer was simple, twisted wing, and I use no reinforcing tape what so ever. The foam just developed a twist all on it's own. Tom
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Quote:
Rick - It doesn't seem to need the ailerons as long as it's flying fast enough. Even with almost no dihedral its quite stable. My earlier problems with this wing were all due to the extra weight of it (now gone) and attempting to fly the plane at over 17 oz on a 10X47 prop and ageing motor. |
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