Rotorcraft Anti-torque Control System
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United States of America Patent
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Issued Date -
Dec 25, 2014
app pub date -
Jun 24, 2013
filing date -
Jun 24, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
According to one embodiment, a rotorcraft includes a main rotor system, an anti-torque rotor system, an anti-torque rudder system, and an anti-torque control system. The anti-torque rudder system includes at least one rudder surface operable to provide a second force on the body in the direction of rotation of the at least one main rotor blade. The anti-torque control system is operable to receive a request to change an amount of anti-torque force applied to the body, compare a rotorcraft performance parameter to a threshold value, instruct one of the anti-torque rotor system or the anti-torque rudder system to change the amount of the first force if the rotorcraft performance parameter is less than the threshold value, and, if the rotorcraft performance parameter is greater than the threshold value, instruct the other of the anti-torque rotor system or the anti-torque rudder system to change the amount of the second force.
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