Rotorcraft control system with stepped mixing linkage

Details Rotorcraft control system with stepped mixing linkage Rotorcraft control system with stepped mixing linkage

2003-09-19

2008-12-09

Mansen, Michael R. (Department: 3644)

Aeronautics and astronautics

Aircraft, heavier-than-air

Helicopter or auto-rotating wing sustained, i.e., gyroplanes

C416S023000, C416S024000, C416S112000, C244S082000, C244S017110

Reexamination Certificate

active

07461812

ABSTRACT:
A control system for a rotorcraft is disclosed. The control system includes a stepped mixing linkage, such that a selected amount of right-left lateral cyclic output is generated for certain amounts of forward-aft cyclic input. The stepped mixing linkage includes two supporting links and a floating link pivotally coupled between the two supporting links. The ratio of the lengths of the two supporting links to the length of the floating link is small, thereby generating a selected lateral sinusoidal output, a selected rotation of the sinusoidal output, and a selected ramped output in response to each forward-aft pilot input command.

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