Pitch control mechanism for coaxial helicopter steering

Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – Responsive to fixed actuator

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416130, B64C 2780

Patent

active

043670636

ABSTRACT:
A directional and yaw control mechanism for coaxial helicopters, comprising a three coaxial ring system interconnected through a cam and link assembly for transmitting control signals from a steering station to change the rotor blade pitch either collectively to provide lift or independently in opposing directions to control yaw. Cyclic pitch control is also similarly provided.

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