Overview
Sea Wolf is a naval surface-to-air missile system designed and built by BAC, later to become British Aerospace (BAe) Dynamics, and now MBDA. It is an automated point-defence weapon system designed as a short-range defence against both sea-skimming and high angle anti-ship missiles and aircraft. The Royal Navy has fielded two versions, the GWS-25 Conventionally Launched Sea Wolf (CLSW) and the GWS-26 Vertically Launched Sea Wolf (VLSW) forms. In Royal Navy service Sea Wolf is being replaced by Sea Ceptor.
History
The earliest point-defence missile used by the Royal Navy was the Seacat, which had been rapidly developed from an earlier anti-tank missile design, the Malkara. As a weapon originally designed to operate against slow-moving ground vehicles, the missile had subsonic performance and was of limited capability against even early jet aircraft. It was used largely due to the ease which it could be adapted to the role simply by replacing the original wire guidance system with a radio command link, and that its small size allowed multi-round launchers to be fitted to ships in place of their Bofors 40 mm guns. It entered service in 1961, the first point-defence missile to do so.
The limited performance was understood to be a problem from the start and a requirement for a higher performance replacement was published in 1964. British Aircraft Corporation (BAC) won a 1967 development contract along with Vickers and Bristol Aerojet. Although only slightly longer and heavier than Seacat, Sea Wolf offered dramatically higher performance, with a top speed on the order of Mach 3, an effective range roughly double that of Seacat, and a fully automated guidance system that made engagements much simpler.
From Wikipedia (CC BY-SA 4.0).