A11010 SEPECAT Jaguar GR.1/GR.1A Model KitIn May 1965, the Defence Ministries of France and the UK agreed on a joint programme to develop a supersonic trainer and tactical strike aircraft. France had already decided upon the Brequet 1221 design and this, together with the Rolls Royce Turbomeca Adour engine became the basis of the Jaguar. Design leadership was with both Brequet Aviation and the British Aircraft Corporation, so the companies established the joint company SEPECAT to coordinate