Bristol Lucifer

The Bristol Lucifer (originally Cosmos Lucifer) was an air-cooled, OHV dreizylindriger radial engine, which was developed in 1919 by Roy Fedden at Cosmos Engineering.

History

Cosmos went in 1920 after her bankruptcy as a motor division of the Bristol Aeroplane Company Ltd on in this company. The Olympic Air Show in London in August 1920, the engine was first introduced to the public.

For now built under the name of Bristol Motor the same, equipped with four valves cylinder were used as the successful Bristol Jupiter, but the stroke was reduced by 31.8 mm.

Even under the name Cosmos Lucifer the engine was already in an Avro 504K and the Boulton Paul P.10 been installed. This Lucifer I said execution had a take-off power of 100 hp. The execution of Lucifer II made ​​122 hp and was installed in aircraft Avro 504N, Bristol 73 Bristol 83. In 1923, out of something highly compressed Lucifer III, which was also used in the Parnall Peto and 128 hp brought. The end of the development represented the Lucifer IV, which was delivered in 1925 and its capacity was increased to 140 hp. He was, inter alia, also in the Handley Page H. P. 32 used. A special racing version was installed in the Bristol 77 M.1D.

The engine in the different versions was also used in foreign machines, as well as in the USSR and Germany. Here Lucifer engines were installed, for example, in the LFG V 44 (D -669 ), Udet U 8 (D -670 ), Caspar C 26 (D -674 ), Heinkel HD 32 (D -678 ), Albatros L 69 (D -684 and D -778 ), BFW M 17 (D -779 ) and Junkers K16 (D -718 and D -1208 ).

Technical data ( Lucifer I)

  • Type: Three - cylinder radial engine
  • Cooling System: Air Cooled
  • Bore: 146 mm
  • Stroke: 159 mm
  • Capacity: 7,99 liter
  • Dry Weight: 147 kg
  • Valve Train: OHV four valves per cylinder, Type: poppet valve
  • Fuel Type: Gasoline
  • Power: 100 hp (75 kW)
  • Compression ratio: 4.8:1
  • Ignition: magnetic dual ignition
  • Spark: 6, 2 pieces per cylinder

Swell

  • "British Piston Aero Engines and Their Aircraft ," Alec Lumsden, ISBN 1853102946,
  • " Investigations into the German aircraft role," Charles Ries, Verlag Dieter Hoffmann 1977, ISBN 3-87341-022-2
  • Alec Lumsden: British Piston Engines and Their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003 ISBN 1-85310-294-6.
Junkers K 16 List of aircraft engines
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