France and Great-Britain simultaneously started basic studies on a supersonic aircraft in 1956. These studies led in 1961 to two distinct projects which were combined on November 29, 1962, into a single project which assembled for main companies: Aérospatiale, BAC, Rolls-Royce and SNECMA. The first prototype 001 left the Toulouse hangar on the 11 December 1967. Concorde had already smashed altitude records (21,000 m) and speed (Mach 2.2). On the 21 January 1976 a new chapter in commercial aviation history began, under the colors of British Airways and Air France.