PPRuNe Forums - View Single Post - Single blade rotor - the physics.
View Single Post
Old 13th July 2021 | 05:02
  #19 (permalink)  
Ascend Charlie
Community Builder
20 Anniversary
 
Joined: Sep 2002
: CPL
Posts: 4,721
Likes: 636
From: Great South East, tired and retired
I cannot understand how the force can be resolved - the blade generates lift, and is sort of based on its CG, which is a distance from the rotor hub. It must generate a rolling moment, which on a two-bladed machine is balanced by the same force from the other side. But without an opposite blade, there would be a force that is moving around the mast 5 times a second.

10 years ago, Adam Frisch asked:
with cyclic input comes flapping and as it goes around and flapping to equality
Flapping to equality only happens if the cyclic is held steady, and it leads to dynamic instability and eventual destruction - move the cyclic in the direction you want to go, and you solve the problem
Ascend Charlie is offline  
Reply