BAC One-Eleven suffered disasters in service, strong passenger demand had been demonstrated for jet propulsion. Several manufacturers raced to release passenger jets, including those aimed at the short-haul market, such as the Sud Aviation Caravelle. In July 1956, British European Airways published a paper calling for a "second generation" jet airliner to operate beside their existing turboprop designs. This led to a variety of designs from the British aerospace industry. Hunting Aircraft started design studies on a jet-powered replacement for the successful Vickers Viscount, developing the 30-seat Hunting 107. Around the same time, Vickers started a similar development of a 140-seat derivative
Vickers Vanguard Vickers Vanguard The Vickers Vanguard was a British short/medium-range turboprop airliner introduced in 1959 by Vickers-Armstrongs, a follow-up to its successful Viscount design with considerably more internal room. The Vanguard was introduced just before the first of the large jet-powered airliners, and was largely ignored by the market. Only 44 were built, ordered by Trans-Canada Air Lines (TCA) and British European Airways (BEA). After only about 10 years' service TCA experimentally converted one of its Vanguards to a freighter configuration, calling it the Cargoliner. This was considered successful, and in the early 1970s most were converted to freighters, those from