Aegis combat system or equivalent refers to naval combat systems integrating radar, missiles, and guns for air defense and anti-submarine warfare capabilities.

Systems designed to detect, track, intercept, and destroy ballistic missiles and their warheads.

Combined Diesel-electric and Gas propulsion system used in naval vessels, switching between diesel engines for low-speed cruising and gas turbines for high-speed operation.

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.