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.

This Pioneer II was a prototype of a Pioneer I, (VL515) which was civil registered as G-AKBF. The original prototypes (VL515 and VL516) were fitted with Alvis Leonides engines and receiving civil registrations (G-AKBF and G-ANAZ). The first, G-AKBF seen here at Farnborough in 1951 and later to become a RAF Scottish Aviation Pioneer CC.1 - XE512. VV119 the Vickers Supermarine Type 528 registration can just be seen in the background. Scanned from an original image photographer unknown.

This was the three-seat prototype for the Scottish Aviation Pioneer, powered by a Gypsy Queen inline engine. It was modified to a four-seat layout with the Alvis Leonides engine and became the prototype Pioneer. Displayed at the April 1948 Ringway airshow.