H-3 Sea King helicopter: Description A multi-purpose helicopter. Westland Helicopters acquired rights to produce this helicopter in the United Kingdom. Westland initially developed the S-61 as an anti-submarine warfare helicopter (or helicopter anti-submarine, HAS) for the UK Royal Navy. In 1961 the Sikorsky S-61 has been adopted by the US Navy as the H-3 Sea King. The Westland Sea King is a license produced version of the Sikorsky S-61. Development started in the late 1950s under licence from Sikorsky. The Westland Sea King first flew in 1969 and was adopted by the Royal Navy in 1970.
VH-3D Sea King helicopter: Description VH-3D is the Executive transport helicopter. Features The H-3 is a twin engine, all-weather helicopter. It is a twin engine, all-weather helicopter flown by Marine Helicopter Squadron One (HMX-1). The Sea King helicopter is manufactured by AgustaWestland in the UK.