Westland Whirlwind HAR.10

This airframe is the first Bristol Siddeley Gnome engined Whirlwind HAR.10 aircraft to have been manufactured. It made its first flight on 28 March 1961. The Whirlwind HAR.10 was so successful that it remained in RAF service for 21 years, the last squadron converting to the Westland Wessex in 1982

The Bristol Siddeley Gnome turboshaft engine was lighter and more powerful than the piston engine it superseded and offered improved performance and reliability. A total of sixty-eight new air-sea rescue HAR10 and transport HC10s were manufactured by Westland and a number of Whirlwind HAR2 and HAR4 piston-engined helicopters were subsequently re-engined.