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
1948 Gatow air disaster 1948 Gatow air disaster The 1948 Gatow air disaster was a mid-air collision in the airspace above Berlin, Germany that occurred on 5 April, sparking an international incident. A British European Airways (BEA) Vickers VC.1B Viking airliner crashed near RAF Gatow air base, after it collided with a Soviet Air Force Yakovlev Yak-3 fighter aircraft. All ten passengers and four crew on board the Viking were killed, as was the Soviet pilot. The disaster resulted in a diplomatic standoff between the United Kingdom and United States on one hand, and the Soviet Union on the other, and intensified distrust leading