In 1958, the aero engine interests of the Bristol Aeroplane Company and Armstrong Siddeley were amalgamated to form Bristol Siddeley Engines. Rolls-Royce purchased Bristol Siddeley Engines in 1966. On 4 February 1971, Rolls-Royce were declared bankrupt due to the burden of development of the RB211 engine for the Lockheed L-1011 Tristar jetliner. Due to the importance of Rolls-Royce engine division to the Royal Air Force, the Government nationalised the company. Frederick Corfield the then local MP, was then Minister for Aviation, and presumably had influence over what was an unusual decision for a Conservative administration. In 1960, the British Aircraft Corporation took over the aircraft interests of the Bristol Aeroplane Company. In 1960 an RAF Vulcan bomber, approaching from the west, landed at Filton in heavy rain. The pilot braked, but started to aquaplane. He decided to abort the landing. Although he managed to take-off and eventually land successfully elsewhere, the jet blast from the aircraft's four Bristol Siddeley Olympus 201 engines severely damaged a filling station at the eastern end of the runway, sent cars spinning on the A38 trunk road and wrecked the boundary fence steel railings. Eyewitnesses claimed that the aircraft barely cleared the engine test beds next to the Bristol to South Wales railway embankment. Subsequently, the filling station was moved further north, to a safer location. In the early 1960s a new Filton bypass was constructed, roughly parallel to the old one, and this later became part of the M5 motorway. The 1960s and 1970s saw the development and production of Concorde at Filton and a further extension of the Filton runway. The first flight of the Concorde 002 prototype took place on 9 April 1969 at Filton Aerodrome. All other British-built Concordes also used the main Filton runway for their first flights. Because of jet blast, gates and traffic lights were installed to close off the A38 road when Concorde took off. A few Lightning fighters were produced during this period. The length of the runway and its closed-to-passengers status made it an ideal dispersion site for the nation's airborne nuclear deterrent during the Cold War. During the Cuban Missile Crisis in February 1962, Vulcan Bombers were stationed at the airfield, on short-notice stand-by. On 3 December 1962, Bristol Siddeley Engines were using Vulcan XA894 as a flying test bed for the Olympus 22R, which was designed to power the ill-fated BAC TSR-2 bomber.