Vickers V-1000 the world's first jet-powered commercial transport aircraft, the Vickers Viscount, the world's first turboprop-powered commercial airliner, and the Bristol Britannia, a turboprop-powered aircraft capable of conducting routine transatlantic flights; all of these designs had their origins in the specifications laid out by the wartime Brabazon Committee. With these aircraft, Britain appeared to be on track to capturing a large slice of the global demand for civil aircraft for the foreseeable future. Meanwhile, the Royal Air Force (RAF) had been pursuing development of a new generation of strategic bombers, these being the Vickers Valiant, the Avro Vulcan, and the Handley Page
Airliner 14 hours and 38 minutes with one intermediate landing. However, it was never used as a commercial airliner due to the onset of World War I. In 1915, the first airliner (for commercial use) was used by Elliot Air Service. The aircraft was a Curtiss JN 4, a small biplane which was used mainly in World War I as a trainer. Later, it was also used as a tour and familiarization flight aircraft in the early 1920s. In 1919, after World War I, the Farman F.60 Goliath, originally designed as a long-range heavy bomber, was converted for commercial use into