Here's an alternative to carving wings for your racers or speed planes. Ray Harvey in Australia is offering built, CNC carved wings and stabs. I recently ordered four Sport Goodyear wings and a Quickie Rat wing, and the quality is first rate! All these were solid wings for external controls, but Ray also does wings with internal controls. They all have symmetrical airfoils, and came with templates for the wing cutouts. Plus, they were shipped in a nice wooden box!
The cost for five wings, shipping, and extra insurance worked out to about $105 USD per wing. Ray quotes his prices in Australian Dollars, so they seem more expensive because of the exchange rate. I just let Paypal worry about that.
For full details, please contact Ray Harvey directly at rdharveyaus@gmail.com
Bill Bischoff