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
Canadian Vickers Vigil Canadian Vickers Vigil The Canadian Vickers Vigil was a single-seat patrol aircraft designed to meet a Royal Canadian Air Force requirement for a forest fire patrol aircraft. In 1926, the RCAF issued specifications for an aircraft to replace the Airco DH.4 aircraft used at the time. Canadian Vickers designed the Vigil which had steel-structured wings with aluminum skin throughout, and was a strut-braced sesquiplane. The aircraft was overweight, which impacted the aircraft service ceiling and performance, which in turn made it unsuitable for its role. Only one was ever built. Unfit for its intended role, the aircraft was sent to