Originally Posted by
Less Hair
One of my instructors would demonstrate directional control by just opening both doors of the Cessna 152 in flight and hand extending them airbrake style. It seemed to work.
Reminds me of the 'full opposite door' technique for spin recovery. Never tried it myself.
An aircraft on which I have many hours, does not show secondary roll effect of rudder. It just carries on a bit sideways. Demonstrated it a few times to the surprise of a few instructors. It is an aerobatic type with symmetrical wings but I have never managed to figure out why it is so.