During 1953 a standard Varsity from the production run of 163, WJ900, was selected for conversion at Hurn to Sigint capability for Sweden (and was replaced by an extra aircraft for the RAF, XD366). Two Canberras were also obtained for similar purposes. The arrival of two Caravelles in 1971 rendered these aircraft obsolete and the Varsity was fortunately set aside for preservation, along with one of the Canberras