The Ott Cloud Chaser
On the original the ribs were made of bamboo. I use molded wood ones.1/16 X 3/32. I support the stressed ones with a straight stick of 1/16 square running under the curved rib from the leading to the trailing edge. I'm sure ordinary sheet ribs would work.
Some of the dimensions are illegible. The span is 28" and the length of the motorsticks is 30". You should be able to work it out from there..
The dihedral on the canard isn't shown. 2" works for me.
| A frame | 1/8 x 3/6 x30 inches | light balsa |
| Braces | 1/16 x 1/4 inches | bamboo |
| Wing Spars | 1/8 x14 x30 inches | hard balsa |
| Canard Spars | 1/8 x 3/16 x 12 inches | balsa |
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dannysoar2