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Radar

Last updated: April 2026

Quick Facts

Type
Electronics
Era
20th Century
Key Features
Detection of ships and aircraft using radio waves

Radar transformed naval warfare by allowing ships to detect enemy vessels and aircraft beyond visual range and in poor visibility. Developed before and during the Second World War, it gave the Royal Navy a decisive advantage in night fighting and convoy protection. Early radar sets such as Type 79 and Type 281 enabled ships to track incoming aircraft, while later developments improved surface detection and fire control. Radar reduced reliance on visual signalling and lookout reports, allowing more precise coordination and faster response times.

The integration of radar into command systems fundamentally altered naval tactics. Ships could engage targets at longer ranges, coordinate formations more effectively, and operate in conditions that would previously have halted action. Radar also supported anti-submarine warfare by improving detection of surfaced submarines. Over time, radar became a standard feature of all major warships, forming part of a broader network of electronic systems that defined modern naval combat.