Over Torque Warning Unit

The Over Torque Warning Unit (OTWU) monitors torque from the engines and the main rotor RPM. The unit can receive two rotor speed inputs and 6 torque inputs for each of the engines. An audio drive signal and discrete signal are provided to the aircraft when an over torque condition exists. In addition to these outputs, the unit has LED displays and two indicators to indicate OVERTORQUE and Main ROTOR SPEED condition. It also records data that can be accessed after the flight using the display on the front of the unit. The OTWU operates from DC aircraft power per MIL-STD-704A.

Features and Benefits
  • Easy maintenance
  • 8 input signals
  • Data storage capable
  • MIL-STD-704A
  • Accurate measurements
  • Logs exceedances, faults data