Rapier (missile)

Rapier is a British surface-to-air missile developed for the British Army and Royal Air Force. Entering service in 1971, it eventually replaced all other anti-aircraft weapons in Army service; guns for low-altitude targets, and the Thunderbird (missile), used against longer-range and higher-altitude targets. As the expected air threat moved from medium-altitude strategic missions to low-altitude strikes, the fast reaction time and high maneuverability of the Rapier made it more formidable than either of these weapons, replacing most of them by 1977. It remains the UK's primary air-defence weapon after almost 35 years of service, and its deployment is expected to continue until 2020.

History

Rapier began development in 1961 as a private venture at British Aircraft Corporation (BAC) known as "Sightline". The project was to combat supersonic, low level, high manoeuvrability craft, eschewing any attempt at automated guidance in favour of a purely optical system. The operator would keep the telescopic gunsight centred on the target, and the automated systems would guide the missile to that point. The optical system ensured high accuracy, so it was developed with the intent of directly hitting its target, reducing the size of the warhead required to guarantee a kill, and eliminating the need for a proximity fuse. BAC joked that the system was a "hit-ile", as opposed to a "miss-ile".