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 in the experimental Consolidated Vultee XP-81. The XP-81 first flew in December 1945, the first aircraft to use a combination of turboprop and turbojet power. The technology of the Allison's earlier T38 design evolved into the Allison T56, with quartets of the T56s being used to power the Lockheed Electra airliner, its military maritime patrol derivative the P-3 Orion, and the widely produced C-130 Hercules military transport aircraft. One of the most produced turboprop engines used in civil aviation is the Pratt & Whitney Canada PT6 engine. The first turbine-powered, shaft-driven helicopter was the Kaman K-225, a development of Charles