Anti-Submarine Warfare. Capability to detect, track, and engage submarines.

Combined diesel and diesel propulsion system, using two diesel engines driving a single shaft via a combining gearbox.

Military action involving the use of electromagnetic spectrum to disrupt, deceive, or destroy enemy electronic systems.

Sonar system installed on the hull of a ship, used for underwater detection and navigation by emitting and receiving sound waves.

Radar system using multiple small antennas whose signals are combined to create a steerable beam without physical movement, enabling rapid scanning and tracking of multiple targets.