FlyerTalk Forums - View Single Post - Floating like a butterfly on planes - the "Ground Effect"
Old Feb 16, 2018 | 11:57 am
  #19  
LarryJ
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Originally Posted by tanglin
When a fixed wing aircraft gets close to the ground (less than a winglength - maybe about a quarter winglength for a noticible effect) then additional lift is generated from the uplift of air passing under the wing.
It's actually the reduction in induced-drag due to the ground's disruption of the wingtip votacies.
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