- Apr 13, 2020
just a stupid question but is the a reason you cant make a single surface wing out of wood using full size ribs and such.
Do you mean something like a plywood sheet bent to a single surface airfoil shape, or do you mean a frame made of wood but only covered on one side?just a stupid question but is the a reason you cant make a single surface wing out of wood using full size ribs and such.
When you look back farther to Lilienthal and the Wright Brothers you see wood framed wings with covering on a single side. Because wood structures are different from metal ones to take best advantage of the material’s properties it was found pretty early on (about 1902) that covering both top and bottom was better to the point of being almost necessary.I just was thinking of all the old ultralights with single surface wings but i never have seen a wooden fabric covered single surface wing.
The upper surface cops a lots of forces. Unless you get the fabric very tight, it billows and even has surfaces waves.It would be easier to use the wood as the bottom surface of the wing , run the spar down it ,and cover the top side with cloth over a few ribs.