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
Vickers-Armstrongs part of BAC) the VC10 jet airliner, which was used in RAF service as an aerial refuelling tanker until 2013. Vickers-Armstrongs was one of the few British manufacturers of marine diesel engines, notably for Royal Navy S, T-class and Estonian Kalev class submarines during World War II. In "The Adventures of Tintin" comic "The Broken Ear", the role of Vickers-Armstrongs in the Chaco War is parodied as "Viking Arms Co. Limited". A handgun described in a trial of Walter Mitty's alter ego is a 50 caliber Webley-Vickers revolver. Vickers-Armstrongs Vickers-Armstrongs Limited was a British engineering conglomerate formed by the merger