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Old 25th May 2017, 14:18
  #6 (permalink)  
Join Date: Sep 2001
Location: Toronto
Posts: 2,302
Low level stalls are a very different beast than the ones we practice at altitude. Terrain, trees and structures upwind can produce vortices inducing shears of twice the wind.

Note the usual approach speed formulae won't give you sufficient margin in a low level vortex encounter.
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