Orbital Research Inc Awarded Patent for Electrically Driven Blade Control For Rotorcraft

Orbital Research Inc Awarded Patent for Electrically Driven Blade Control For Rotorcraft 1 Oct, 18, Source: USPTO

Multiple redundant harmonic drive motors on a rotor head actuate the angle of attack of rotor blades at the rotor blade roots, providing collective control that, in combination with a system for providing cyclic control on the rotor blades, eliminates the need for a swashplate, thereby advantageously reducing the weight and maintenance cost of a helicopter, increasing its reliability, and reducing its vulnerability to ballistic attack.

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