Memories of flying and the guys he flew with came flooding back for former pilot Berchman Richard of Alexandria after seeing ...
Nonlinear dynamics behaviors of a rotor roller bearing system with radial clearances and waviness considered. Chin J Aeronaut 2008; 21: 86–96. 5. Rajesh S, Mihir KG and Raj KP. Vibration analysis of ...
The third scheme is a coaxial rotor helicopter with rigid rotors and an additional pusher propeller called the propulsion propeller.