Patent ID: 6879885
Filing Date: 2005-04-12
Classification: B64C,B64D,F02C,F05D,G05B

Abstract:
1. A system for determining the total torque required at the main and tail rotors of a helicopter for use in feed-forward rotor torque anticipation, the total torque including the aerodynamic torque and static torque at the main and tail rotors, the system comprising: a) means for predicting the aerodynamic torque at the main and tail rotors with the helicopter in motion; b) means for determining the torque at the main rotor with the helicopter stationary; c) means for determining the torque at the tail rotor with the helicopter stationary; and d) means for calculating the required total torque at the main and tail rotors based upon the aerodynamic torque at the main and tail rotors with the helicopter in motion, the torque at the main rotor with the helicopter stationary, and the torque at the tail rotor with the helicopter stationary.