Jake Anderson wrote:
It takes much higher actuator forces if the vanes are hinged at the
top. For supersonic flows, the center of pressure is in the middle of the
plate.
Still, by pivoting it only slightly above the center of pressure you can
arrange for the actuator forces to be reasonable, whilst allowing
neutralisation if the power fails.
"Stability" doesn't really help anything with a computer controlled
vane, because it is constantly adjusting anyway.
Not entirely, you wouldn't want to pivot it below the center of pressure.
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