This was the Pioneer prototype, VL515, originally powered by a DH Gipsy Queen inline engine. Re-engined with an Alvis Leonides radial, it became a civil Pioneer II, G-AKBF, and then the first Pioneer CC.1 for the RAF, XE512, in 1953. Photo stamped July 1953. Delivered in August and immediately shipped to Malaysia for service with the Far Eastern Air Force. Crashed there on 4 November 1958.