Hawker Siddeley HS 748 Paper ended most military manned-aircraft development in the UK, and Avro decided to re-enter the civilian market. The Vickers Viscount had the larger end of the short-haul market, and Avro therefore decided to design a smaller regional airliner powered by two Rolls-Royce Dart turboprop engines, intended to replace the many DC-3 Dakotas that were by then reaching the end of their economic lifespan. Original plans were for a 20–30 seat aircraft with a similar configuration to the Fokker F27, but talks with potential customers soon led to a low-wing 40-seat design being chosen for the 748 project. Avro was not
Vickers-Armstrongs company produced the Wellesley, designed by Rex Pierson using the geodetic airframe principle of structural engineer Barnes Wallis. This would later evolve into the famous Wellington bomber, a mainstay of RAF Bomber Command and RAF Coastal Command during World War II. The Cold War-era Valiant V bomber was another Vickers product. Military aircraft with the Vickers brand: Vickers also competed for contracts with designs such as: Vickers was a pioneer in producing airliners, early examples being converted from Vimy bombers. Post-WWII, Vickers went on to manufacture the piston-engined Vickers VC.1 Viking airliner, the Viscount and Vanguard turboprop airliners and (as