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Old 10th May 2009, 11:21
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BOAC
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Can anyone be kind enough to explain the high speed stall to me please?

It occurs whenever the angle of attack of a wing reaches the stalling AoA at a speed above the st and level unaccelerated stall speed. This ocurs when pulling 'g' as in a turn or other pitching manouvre.

I imagine it's pretty much the same as what I know of as ' departure ', with the airflow going straight over the wing rather than behaving nicely and keeping in the laminar flow ?

Well, my understanding of 'departure' is 'departure' from controlled flight, so I'm not sure of your idea.

How does one cope with it, stick out an airbrake or is there something better...

Very simply - relax the 'g' that caused it - a bit difficult when the windscreen is full of green and brown bits, however....
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