The louvers may not work for the same reason above. It may be a high
pressure area. The cowl flap will work of course but it is better to put
two of them under the stab where there is a low pressure area for sure.
I don't have a pressure map for a high wing airplane but here is one for
a P-51. Red is low pressure. Yellow is neutral and green is high pressure.

Byron Ward wrote:

Here is a pressure map of a high wing airplane. Using the same CFD program
as that P-51 I think (VSAERO).

I think something is wrong with the color Byron. Work on it and send
us another if you don't mind.

Paul Lamar

The AirCraft Rotary Engine NewsLetter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org