First registered as G-AWVK in November 1968, demonstrated at the 1971 Paris Air Show as N1035S but not taken up Cal-State Airlines. Bought by Decca in February 1974 and reverted to G-AWVK. Re-registered as G-RAVL on 2nd December 1986 after the Racal merger. Became a testbed with Cranfield University in November 1989. Withdrawn from use in January 2001. Used for ground instruction at Cranfield until 2021, when it moved to Sywell for preservation with the Sywell Aviation Museum.