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Old 21st August 2011 | 22:36
  #267 (permalink)  
Machinbird
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Joined: Jul 2009
: ATP+Mil
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From: Not far from a big Lake
Zorin75
It's a garden-variety stall, do we need a special name for it?
Hi Zorin. When you get well away from the initial point of stall, new things come into play. CL now depends on Aspect ratio, thickness ratio and Reynolds number in addition to Alpha. Remember this reference we discussed a few months ago? http://wind.nrel.gov/designcodes/pap...44XX_Part2.pdf
Pitching moment can change. CD continues its increase fairly smoothly. It isn't the same old stall you experienced when you nibbled on the edges of it in training.
I think the deep stall description is warranted. Sixty-one degrees final AOA was closer to Broadside to the wind than to flying.
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