PPRuNe Forums - View Single Post - Canted tail rotor pylons, why?
View Single Post
Old 3rd Sep 2010, 11:52
  #4 (permalink)  
jimjim1
 
Join Date: Oct 2007
Location: Here
Posts: 964
Received 3 Likes on 2 Posts
Free lunch

SASless said:-
...increased CoG reasons...more lift in the aft end of the helicopter.
Bbbut, surely this would need something to decouple the horizontal and vertical components of the tail rotor thrust to be useful. e.g. A cyclic control on the tail rotor.
Is that what is done?

SASless continued:-
Standard single rotor configurations gain nothing for the power used to offset Main Rotor torque...whereas the canted tail rotor design does benefit in that regard.
Hmmm.
Surely:- The power used to offest main rotor torque will need to be horizontally directed. Any power used to provide lift will be additional. As far as I can see, no free lunch here.

Hmmm.

<Noise of thinking machinery grinding>

Work done = Force x Distance.

Since a hovering helicopter is stationary, why does it require power to maintain a hover?
jimjim1 is offline