This carbon fiber Gurney Flap for straight wings comes with 3M adhesive tape to install on the top side of the wing that does not have a gurney channel. If your wing already has a gurney channel, we can leave the adhesive strip off so you can slide it into your wing. No more drilling holes in your wing and having nuts or rivets extending down to the lower side. They are 1/2" tall and can be made to your span specifications. (max 72" long). Please specify EXACT length in the notes at checkout.

Technical Information on Wikipedia

CFD Data for Gurney Flaps on the Fulcrum Wing. If applied to a different wing, the coefficients will be different. (right click to enlarge):