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Sea Cat

Seacat
Sea Cat missile.png
Seacat GWS-20 series missile
Type Surface-to-air missile
Place of origin United Kingdom
Service history
In service 1962
Used by See operators
Wars 1971 Indo-Pakistani War
Iran-Iraq War
Falklands War
South African Border War
Production history
Designer Short Brothers
Manufacturer Short Brothers
Variants See variants
Specifications
Weight 68 kg
Length 1.48 m
Diameter 0.22 m
Warhead 40 lb (18 kg) continuous-rod warhead
Detonation
mechanism
Proximity

Engine 2 stage motor
Wingspan 0.70 m
Operational
range
500–5,000+ m
Speed Mach 0.8
Guidance
system
CLOS and radio link
Steering
system
Control surfaces
Launch
platform
Ship

Seacat was a British short-range surface-to-air missile system intended to replace the ubiquitous Bofors 40 mm gun aboard warships of all sizes. It was the world's first operational shipboard point-defence missile system and was designed so that the Bofors guns could be replaced with minimum modification to the recipient vessel and (originally) using existing fire-control systems. A mobile land-based version of the system was known as Tigercat.

Seacat was designed by Short Brothers of Belfast for use against fast jet aircraft that were proving to be too difficult for the WWII-era Bofors guns to successfully intercept. The missile was based on the Shorts Green Light prototype, itself a development of the SX-A5, a research missile based on the Australian Malkara anti-tank missile to test radio manual guidance of a short-range surface-to-air missile. It replaced the Orange Nell development programme for a lighter weapon than the enormous Sea Slug missile. The first public reference to the name Seacat was April 1958, when Shorts was awarded a contract to develop a close-in short-range surface-to-air missile. Royal Navy acceptance of Seacat as a point defence system instead of the Bofors L60 and the more effective Bofors L70 with proximity fused shells was controversial as many doubted the effectiveness of Seacat.

As well as use in point defence against air attack, Seacat was justified as an anti missile against Styx missiles of the Warsaw Pact navies and Middle East and Asian clients of the Soviet Union. And as a 'large shell' for junk bashing and countering fast attack craft. It was also justified on its, 'ridiculous simplicity', and ease of maintenance, compared with the Mk 5 Twin Bofors and STAAG type mountings and as a weapon with great export potential and a good example of UK technological progress in line with the Sandys 1957 defence review and new broom. The missile was shown for the first time to the general public at the 1959 Farnborough Air Show. The first acceptance trials of the Seacat on a warship was in 1961 aboard HMS Decoy. The Seacat became the first operational guided missile to be fired by a warship of the Royal Navy. Later it was adopted by the Swedish Navy, making it the first British guided missile to be fired by a foreign navy.


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