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Rolls Royce Derwent

Rolls Royce Derwent EngineClick on image for larger version

The Rolls-Royce Derwent was an engine consisting of a centrifugal compressor with an axial flow power turbine, and was the second Rolls Royce gas turbine engine to be produced.
It was a development of the Rolls Royce Welland, the first Gloster Meteor engine that was basically Frank Whittle's Power Jets W.2B reverse flow engine that powered the  Gloster E28/39 aircraft in Britain's first turbine powered aircraft to fly on May 5, 1941. 

The Rover company selected to produce Whittle's engine for the Gloster Meteor continued development work on the W.2B engine, now designated W.2B/23, and started design work on a new engine designated W.2B/26, but soon fell behind on scheduled progress and in 1943 Rolls Royce took over the gas turbine design and development, and the W.2B/23 now named Derwent Mk1, was ready for operational use in 1944 with a thrust rating of 2,000lbs, increasing to 2,400lbs in the three subsequent variants.

The W.2B/26 was the basis for an engine with a thrust rating of 5,000lbs and named Nene, but it's diameter was such that it could not be installed in the Meteor engine nacelles so a scaled down variant, named the Derwent Mk5 was produced with a thrust rating of 3,500lbs. This engine powered the Meteor Mk 4 that raised the world airspeed record to 606mph on November 7, 1945 and later powered the Meteor Mk 8 aircraft.  9,700+units were built before production ceased in 1954.
    


​TECHNICAL DATA- Derwent Mk 1
Type
Length
Diameter
Dry weight
Compressor
Combusters
Power turbine
Oil system
​Maximum thrust
Pressure ratio
​Thrust to weight ratio



Centrifugal flow turbojet engine
84in (2,134mm)
43in (1,092mm)
975lbs (442kg)
Single stage, double sided centrifugal
​10 combuster tubes
Single stage - axial flow
Pressure with dry sump and scavange
2,000lbs @ sea level
3.9/1
2.04 lbs/1

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  • Home
  • ABOUT
    • News
    • History
  • Community Engagement
    • Legends of The Skies
  • Birthdays & Functions
  • Our Collection
    • CATEGORIES >
      • ENGINES
      • COMMONWEALTH AIRCRAFT CORPORATION
      • D.A.P / G.A.F.
      • R.A.A.F. / R.A.N. / ARMY
      • COMMERCIAL AIRCRAFT
      • KIT AIRCRAFT
      • OTHER AIRCRAFT
      • GLIDERS
  • membership
  • ONLINE SHOP
  • Support the Museum
    • Donations
    • EMPLOYEE GIVING
    • Our Supporters
  • Getting There
  • Contact