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#1
December 28th 04, 06:31 AM
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Greg Esres wrote:
The flight testing guys try to decelerate 1 knot per second; oddly, decelerating at a greater rate produces a *lower* stall speed,... Why? Hilton 
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#2
December 28th 04, 04:46 PM
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Why?
I don't know. None of the books explain it. They just descibe methods of correcting for it. (Test pilots seem the practical sort, rather than theoretical.) My suspicion is that it's due to the "dynamic stall" concept. When an aircraft is rotated rapidly to a high AOA, it can generate a much higher lift coefficient than steady state. Apparently it takes some finite amount of time for the adverse pressure gradients to do their magic and cause the airflow to separate.
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