Thom Stewart wrote:
Joe,

Check the Wing of a high speed Jet. The turbulent resistance is at (or
behind) the trailing edge

A good way to see this is in a pool of water with a film of Talcum
powder on it. Move your rudder section thru it and watch where the
turbulence happens


http://community.webtv.net/tassail/ThomPage

Thanks Ol Thom,

I'm going to use the Eppler E838 hydrofoil shape.

Joe