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S.P.A.D. Aircraft - Coroplast design Discuss the growing area of S.P.A.D.S. (Simple Plastic Airplane Designs). Coroplast type aircraft, pizza box planes, etc..

wing ship cg?

Old 06-28-2003, 08:57 PM
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Default wing ship cg?

I building a 40 size wing ship close to a gremlin from coro. Where do you set the cg? Looking at pictures of gremlins it almost looks like it is in front of the leading edge. Any input is greatly appreciated.
Old 06-29-2003, 12:15 AM
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Default wing ship cg?

save yourself some trouble, and take a look at the Grim reaper's Sickle. Very close to a gremlin, and built from coro and gutterpipe. Scale it up just a bit, and it'll be fine for a 40.
As far as cg on flying wings, they normally are set between 11 and 18% of the chord of the wing. Most like about 15%
Old 06-29-2003, 12:59 AM
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Default wing ship cg?

I just made a single winged plane:

The envelope for CG is small, 11% is pretty tame 16% is extremely manueverable. I don't know if
I could handle it at 18%. I just made a MCP today and 9x7 at 17K. It's a lot of fun! The others I
built did not glide, but this one deadsticks pretty well. No flutter this time.

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