Importance

Loading Importance Indicators...

Abstract

A helicopter propulsion and control system configured for actuating a helicopter airframe according to control inputs of an operator, comprising a counter-rotating rotor set tiltably coupled to the airframe at a first location, the rotor set having a downward thrust vector and a power assembly configured to actuate the counter-rotating rotor set, having a center of gravity, and being fixedly coupled to the rotor set so as to be tiltable therewith, the center of gravity of said power assembly being disposed below the first location where the rotor set is tiltably coupled to the airframe and a control actuator operatively coupled between the power assembly and the airframe to enable the center of gravity of the airframe to move with respect to the center of gravity of the power assembly, and with respect to the thrust vector of the rotor set, whereby pitch and roll of the airframe are controllable by the operator.

Loading the Abstract Image...

First Claim