PPRuNe Forums - View Single Post - Sikorsky SB-1 flies for first time
View Single Post
Old 21st Jul 2021, 13:08
  #308 (permalink)  
IFMU
 
Join Date: Mar 2005
Location: Poplar Grove, IL, USA
Posts: 1,102
Received 86 Likes on 61 Posts
Originally Posted by noneofyourbusiness
The massive diameter prop on Defiant will have a massive roll torque input to the airframe. When a conventional helicopter loses tail rotor authority, the helicopter spins about its axis. Large gear reduction, large torque, transmitted through the ring gear to the airframe. Normally the only roll torque in a conventional helicopter is from the much lower torque from the engines. The Defiant has to have a substantial gear reduction from the engine to the prop. Large gear reduction, large torque. The AVX design was better.
Now your rambling is just getting silly. Why would you think the prop torque would be a problem? Do you think there is not enough cyclic trim to balance it?
IFMU is offline