Rolls-Royce Exe

The Rolls -Royce Exe ( original Rolls- Royce Boreas ) was an aircraft engine of the British manufacturer Rolls- Royce, which is far deviated from the otherwise applicable where construction lines.

History

It was an air-cooled 24-cylinder X engine, which was designed by Arthur Rowledge. The development started in 1935. Provided he was to be installed in the Fairey Barracuda. A special feature was the control of gas exchange by slide after this principle had been in 1934 tentatively built into a Rolls -Royce Kestrel and tested on the test bench. The piston transferred through the main and auxiliary connecting rod their movement to the crankshaft, which ( i = 2,79 ) driven by a reduction gear, the propeller. In the supercharged engine with single-stage centrifugal compressor, the spark plugs have been supplied by a coil ignition. The first test runs in September 1936 yielded a power output of 920 hp up to full pressure altitude of 3300 m.

The first flight with this engine was made on 30 November 1938 in a Fairey Battle. He worked satisfactorily, but showed a high oil consumption. The development in 1938 was shut down because of the now improved performance of the Rolls- Royce Merlin. The test vehicle, however, was used until 1943 as a liaison aircraft.

The findings, which were collected with this design led to the much larger Rolls- Royce Pennine.

Specifications

  • Bore: 106.7 mm
  • Stroke: 101.6 mm
  • Displacement: 22.1 l
  • Power: 1150 hp at 4200 min-1
  • Compression ratio: 8:1

Swell

  • Flight, May 7, 1954.
  • Bill Gunston: Encyclopedia of aircraft engines. Motor -Verlag, Stuttgart 1991, ISBN 3- 613-01422 -X.
  • Alec Lumsden SC: British Piston Aero Engines and Their Aircraft. Airlife, Shrewsbury 1994, ISBN 1-85310-294-6.
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