Rolls-Royce Derwent

The Rolls- Royce Derwent was after the Welland, the second mass-produced jet engine from Rolls -Royce.

Named after the river in the English county of Derbyshire single-shaft engine has a centrifugal compressor, nine combustion chambers and an axial turbine. The prototype W.2B/26 produced by Rover still worked in March 1942., The more powerful type Derwent Mk.I ( B.37 ), in autumn 1943 in the manufacturing and initially yielded 8.9 kN thrust at the Mk IV increased to 10.9 kN. Last variant was the Derwent Mk.8 ( RB.40 ) with a thrust of 16.0 kN at an air flow rate of 28.5 kg / s and a speed of 14,700 min -1.

A provided with only seven combustion chambers and exhaust nozzle without Derwent was the first Rolls- Royce Trent ( RB.50 ) also the first turboprop engine in the world: an additional turbine stage operating on a second wave a five-petalled propellers. With two RB.50 Trent graduated from a converted Gloster Meteor on 20 September 1945 the world's first turboprop flight.

The Derwent engine was developed in 1944 to the larger Rolls- Royce Nene ( RB.41 ). There were, among others, the following types of aircraft used:

  • Gloster Meteor
  • Avro 707
  • Avro Canada C -102
  • Yakovlev Yak -23
  • Lavochkin La -15
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