Free-Vortex Wake Calculations of Helicopter Rotors and Tilt-Rotors Operating-In and T

[Rotor Rooter]

Tittle: Free-Vortex Wake Calculations of Helicopter Rotors and Tilt-Rotors Operating-In and Transitioning Through the Vortex Ring State
Authors: J. G. Leishman, S. Ananthan & The University of Maryland

Keywords: Vortex, Ring, State, Leishman

_________________ Related Trivia _________________

Dr Igor B. Bensen' representation of States of Flow;

1. Propeller State
2. Hovering State
3. Vortex Ring State
4. Autorotation
5. Windmilling State

Todays helicopter representation of States of Flow:



Another variant is that some make a distinction between 'Vortex Ring State' and 'Settling with Power'.


Dave