Altitude and speed assist control circuit for helicopter has sensors for speed and altitude for comparison to reference values for power correction

摘要

The altitude and speed control assist for a helicopter (2) has a sensor circuit (22) to deliver signals dependent on the altitude and speed values and a stored value memory (26) for predetermined altitude and speed levels. A circuit (20) controls the sensed values to correspond to the stored values . The circuit automatically varies the pitch and or power developed by the aircraft engines to cause the signals to correspond.