Helicopter power train for distributing rotor blade flapping dis
Helicopter rotor structure
Helicopter rotors
Helicopter tail rotor with pitch control mechanism
Hubless, hingeless and bearingless helicopter rotor system
Hubless, hingeless and bearingless helicopter rotor system
Impact absorbing blade mounts for variable pitch blades
Low drag, bearingless rotor head for helicopters
Method of and apparatus for increasing propulsive efficiency of
Modified savonius rotor
Platform for a swing root turbomachinery blade
Platform for a turbomachinery blade
Regulating device for maintaining constant the rotary speed in t
Rotor structure, especially for hingeless rotary wing aircraft
Self-regulating windmill
Speed governing hub for windmill
Tail rotor
Wind turbine adaptable to wind direction and velocity
Windmill blade stalling and speed control device