PPRuNe Forums - View Single Post - Ceiling effect (in stead of ground effect)
Old 21st March 2010 | 13:37
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4dogs
 
Joined: Jun 1999
Posts: 362
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From: Australasia
blockage effect

yep,

The ceiling causes a beneficial change in inflow angle which leads to less pitch required, hence less drag and less power required compared to free air.

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