The British Navy acquired 25 American-built S-55s in 1950, and after
evaluation of these aircraft, Westland acquired a license to build
the helicopter in Britain in November 1950. Westland
gave the name Whirlwind to their aircraft.
The
license -built Westland Whirlwind HAR1 first flew on 15. August 1953 and
was delivered to 705 squadron soon after (the Navy had, in fact, previously acquired
a few American S-55s in 1952). It was later also adopted by
the Air Force and Army.
In November 1952???, it was delivered to 705 Squadron of the British
Navy.???
First operational helicopter squadron No. 848. In November 1952 until 20. March
1953, saw action in Malaya.
A new lease of life was
given to the aircraft when a turbine-engined version was
produced, entering RAF service in 1961. Subsequently the Navy's
piston-engined HAS7 was re-fitted with turbine engines to produce
the HAR9 (Helicopter Air Rescue).
The Westland version is still in
service in Brazil, and was also supplied to Nigeria and Qatar.
In 1952, it became the first rotary-wing transport to be used
commercially when it was used by Sabena.