Displays the amount of sonar cable paid out from the aircraft, regardless of depth and altitude.

The AQS-502 is a lightweight echo-ranging dipping sonar capable of detecting and classifying moving and stationary underwater objects. The sonar set will provide information concerning range, bearing and speed, at display ranges of up to 20,000 yards.
Displays the amount of sonar cable paid out from the aircraft, regardless of depth and altitude.
