
First aircraft produced by Scottish Aviation was the Prestwick Pioneer single-engined five-seat STOL monoplane, first flown 1950. For counter insurgency the Scottish Aviation A.4/45 Prestwick Pioneer 2 was to fill the niche. It came about via the Pioneer 1 and was re engined with the more powerful Alvis Leonides engine.

In service with the RAF as the CC.Mk.1, the Pioneer was in Malaya, Aden, and the UK.
Scottish Aviation Pioneer
Engine Alvis Leonides 504/1
Span 49 ft 9 in
Length 34 ft 6 in
Mauw 5400 lb
Cruising speed 120 mph