Bristol Siddeley Engines
of Filton, Bristol and Coventry. Makers of aero-engines
1958 The company was formed from the merger of Bristol Aero Engines and Armstrong Siddeley Motors
1961 Listed as designers and manufacturers of aircraft piston engines, gas turbine engines, and propeller turbine engines; industrial and marine and gas turbine engines; industrial, marine and rail traction diesel engines; motor cars; gas bearing compressors; beaver ball screws, ball ways and ball splines, and general engineering products. 25,000 employees. [1]
1961 Listed as a subsidiary of Bristol Aeroplane Co and the Hawker Siddeley Group. Employ 25,000 persons.
1961 Bristol Siddeley acquired de Havilland Engines and Blackburn Engines. The aircraft side of Blackburn became part of Hawker Siddeley.
1961 Employed 25,000 persons. Works at Filton and one subsidiary.[2]
1961 Bristol Siddeley picked up an idea of Frank Whittle's and set up Bristol Siddeley Whittle Tools to further develop the concept.
1966 Bristol Siddeley was taken over by Rolls-Royce
1968 Four Proteus gas-turbine engines for the British Hovercraft Corporation SR.N4.[3]
The Filton factory in North Bristol produced many high performance military aeroplane engines including the Olympus two spool turbojet (from which the engine for Concorde was developed), the Orpheus turbojet for the Folland Gnat light fighter/trainer aircraft, the Pegasus vectored thrust turbofan for the Hawker P.1127/Kestrel STOVL fighter, the Proteus turboprop for the Bristol Britannia airliner and the Viper turbojet for the BAe 125. Bristol Siddeley had under development another vectored thrust turbofan, the "plenum chamber burner" (similar to an afterburner) equipped BS100, which was intended for the supersonic P1154 VSTOL fighter, but the project was cancelled in 1965.