A Magnetic Anomaly Detector (MAD) is an instrument used to measure and detect variations in the Earth's magnetic field, primarily for locating submarines or other large metallic objects.

A sonobuoy is a expendable, self‑contained buoy equipped with acoustic or other sensors, deployed from aircraft to detect and track submarines or surface vessels.

Enables real-time sharing of position, targeting, and sensor data among aircraft and platforms for coordinated combat operations.