Cowl-flap as speed brake?

[Matt Gonitzke]

The original build had streamlined foam over the legs and wheel pants. I had thought about a 'split flairing' around the gear to use as speed brakes. Activated with the brakes, it would be complex but another approach potentially giving more yaw control. But angled in-ward, they might passively add yaw stability.

Then you'll probably wind up with an unwanted nose-down pitching moment that'll vary with the amount they are open.