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Thread OP
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A Lil Hornet like foam board flyer.This is basically a scaled up Lil Hornet. The wing is foam board stripped of paper. It was shaped to a slight curve with a heat gun, Spar is a 1/8 dia dowel with a small ply center joiner. Balsa tail feathers and ailerons. Drive system is the Hornet drive gear with a GWS 8x4.3 prop. Stock hollow plastic hornet wheels. It flies great |
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Last edited by poobs; Oct 14, 2001 at 05:16 PM.
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Same problem here Poobs, and I am a Yahoo member. Are you sure you haven't put some viewing restrictions on it? Your album appears empty.
I'd loved to see it too. I just finished a foamboard wing with pink foam fuse, and a direct drive 280. Not much power, and I'm thinking a gear drive may work out better. |
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Last edited by hoppy; Oct 14, 2001 at 08:02 PM.
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It's empty or restricted, I use Yahoo's phot album as well...
here's the correct url: http://photos.yahoo.com/poobs3 The setting you need is: |
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I also find a lot of flexing of the foam, even with the 1/8" dowel and several strips of strapping tape. I ended putting a short fiberglass rod in the middle of the wing.
I have another wing which is a lot more stiffer, with a 1/4" balsa leading edge, and a few foam ribs to maintain the camber. |
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Well an I-beam or tubing is usually the stiffest construction for any weight of material. I have used a C shaped spar between two layers of foamboard, made of 1/8" balsa, with 1/8" square on top and bottom. Could have probably used 1/16" or 3/32" for the main part.
Adding foam ribs to maintain the wing camber also adds stiffness, as a curve surface is stiffer than a flat one. |
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