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Old 3rd September 2005 | 18:40
  #20 (permalink)  
NickLappos
 
Joined: Apr 2003
Posts: 3,012
Likes: 1
From: USA
Simon853 your logic is so very backwards, it brings to question your concept of how a helicopter operates. The idea that the aircraft is a pendulum slung below the rotorhead is an ancient concept that popped up here on pprune a while back (something about the tail rotor being high means it acts at the center of the rotor head or some such thing.


The aircraft is a ball in space, and all forces act on its center of gravity, usually under the mast, and about mid point up the cabin. The jet thrust from the exhaust will try to drive the aircraft forward, so the pilot will have to pull the nose up, with back stick, to counter the thrust with some lift tilted backwards.

Think of the aircraft as a pendulum, hung from the rotor, and you will never get any of this right!
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