The British Aircraft Corporation TSR-2 was a cancelled Cold War strike and reconnaissance aircraft developed by the British Aircraft Corporation (BAC) for the Royal Air Force (RAF) in the late 1950s and early 1960s. The TSR-2 was designed to penetrate a well-defended forward battle area at low altitudes and very high speeds, and then attack high-value targets in the rear with nuclear or conventional weapons. Another aspect of its combat role was to provide high-altitude, high-speed photo reconnaissance, requirements that necessitated incorporating "state-of-the-art" aviation technology that would make it the highest-performing aircraft in these roles. Only one airframe flew and test flights and weight rise during design indicated that the aircraft would be unable to meet its original stringent design specifications. The design specifications had been reduced as the results of flight testing became available. The TSR-2 was the victim of ever rising costs and inter-service squabbling ove...