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Old Jan 17, 2013, 01:22 AM
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United States, CA, Lancaster
Joined Jan 2009
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Been looking at using drag rudders on another plane. I can see tying those drag rudders in with the elevators. When the wing is at a high angles of attack laminar flow will change and the top drag rudder will have less effect than the bottom. Elevator inputs will cause drag from both upper and lower drag rudders to be the same. How much differential you need is up to experiment.
Ive been playing with a alpha fin to detect the angle of attack for differential control for the drag rudders and a beta fin for yaw detection. This single and the transmitter input mixed and feed into a gyro for stabilization.
Still experimenting with this.

LX Model's B-2 uses drag rudders that are deployed all the time to induce drag at the tips. They only retract in turns. Simple but looks ugly.

How did Chris Gold's B-2 react to varying AoA?

Can't wait to see how your design comes out.
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Last edited by p901P901; Jan 17, 2013 at 02:48 AM.
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