Electronic helicopter stability augmentation systems and autopilots composed of electromechanical servo-actuators, an attitude gyro, rate gyros, airspeed sensor, altitude sensor, and flight control computer; electronic autopilots

Electronic helicopter stability augmentation systems comprised of electromechanical servo-actuators, an attitude gyro, rate gyros, airspeed sensor and flight control computer; electronic autopilots

Electronic autopilot device

Electronic Autopilot System