Patent ID: 8876037

Claim:
A counter-torque control assembly for mounting to a tail boom of a rotorcraft having a single main rotor, no tail rotor and no tail fin, the assembly comprising: an air intake chamber comprising a first end configured for attachment to a tail boom of a rotorcraft having a single main rotor, no tail rotor and no tail fin, the air intake chamber further comprising at least a first opening for receiving an air flow stream; a vane assembly housed within the air intake chamber, the vane assembly comprising at least two vane elements capable of counter-rotation in the air flow stream; and, one or more microjet propulsion devices enclosed in one or more microjet propulsion device housings and coupled to an aft end of the air intake chamber, the one or more microjet propulsion devices drawing the air flow stream over the vane elements to generate a counter-torque force to counter a torque from the single main rotor.