The Viscount was a British medium-range turboprop airliner first flown in 1948 by Vickers-Armstrongs, making it the first such aircraft to enter service in the world. It would go on to be one of the most successful of the first-generation post-war transports, with 445 being built. It was particularly well liked by the passengers, as it was quiet, fast and vibration free, and had larger windows than those found even on modern airliners.