The prototype/first production aircraft, registered G-ASKE on 10 July 1963, and transferred to XR362 on 20th December 1963. CAA records show that it was restored as G-ASKE on 14 June 1965, registered to the Minister of Aviation, and returned to XR362 14 July 1966. It was retired from RAF service in 1976 and stored at RAF Kemble until registered as G-BEPE on 30 March 1977 with HeavyLift Cargo. At some point it carried the class 'B' marks G-52-14. It was withdrawn from use on 26 October 1984 and used for spares recovery before being scrapped at Southend on 18 February 1994.