Turboprop on 20 September 1945. From their experience with the Trent, Rolls-Royce developed the Rolls-Royce Clyde, the first turboprop engine to be fully type certificated for military and civil use, and the Dart, which became one of the most reliable turboprop engines ever built. Dart production continued for more than fifty years. The Dart-powered Vickers Viscount was the first turboprop aircraft of any kind to go into production and sold in large numbers. It was also the first four-engined turboprop. Its first flight was on 16 July 1948. The world's first single engined turboprop aircraft was the Armstrong Siddeley Mamba-powered Boulton
Aerospace industry in the United Kingdom service (the de Havilland Comet), the first aircraft capable of supercruise (the English Electric Lightning), the first supersonic commercial jet airliner to enter service (the Aérospatiale-BAC Concorde), the first fixed-wing V/STOL combat aircraft to enter service (the Hawker Siddeley Harrier), the first twin-engined widebody commercial jet airliner (the Airbus A300), the first digital fly-by-wire commercial aircraft (the Airbus A320), and the largest commercial aircraft to enter service to date (the Airbus A380). Private flying initially stimulated the UK aviation industry and by October 1913 there were over 80 private airworthy aeroplanes, more than the airworthy planes in the recently formed