British United Air Ferries Officer Lesley Hardy became Britain's first airliner flown by an all-female crew. On 1 January 1979, BAF transferred its entire scheduled operation including associated aircraft and staff to British Island Airways (BIA). Following British Airways's decision to withdraw from its loss-making regional routes and to retire its Vickers Viscount turboprop fleet, BAF acquired the entire 18-strong fleet along with the spares inventory during the early 1980s. This acquisition made it the world's largest Viscount operator at the time. As a result of the changes the airline underwent in the late 1970s and early 1980s, BAF mainly concentrated on leasing, charter
Turboprop a turboshaft. Alan Arnold Griffith had published a paper on turbine design in 1926. Subsequent work at the Royal Aircraft Establishment investigated axial turbine designs that could be used to supply power to a shaft and thence a propeller. From 1929, Frank Whittle began work on centrifugal turbine designs that would deliver pure jet thrust. The world's first turboprop was designed by the Hungarian mechanical engineer György Jendrassik. Jendrassik published a turboprop idea in 1928, and on 12 March 1929 he patented his invention. In 1938, he built a small-scale (100 Hp; 74.6 kW) experimental gas turbine. The larger Jendrassik