PPRuNe Forums - View Single Post - Aerody question for Nick, Shaun or any genius..
Old 23rd Jan 2015, 17:51
  #9 (permalink)  
RVDT
 
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Maybe it's all bollix?

The proximity to the ceiling restricts development of the tip vortices and subsequent induced drag?

Henceforth the rotor becomes less inefficient?

Just sayin'
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