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Rolls-Royce/SNECMA M45H: Wikis


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An M45H in its overwing mount on the VFW-Fokker 614
Type Turbofan
Manufacturer Rolls-Royce/SNECMA
First run 1970
Major applications VFW-Fokker 614

The Rolls-Royce/SNECMA M45H was a medium bypass ratio turbofan produced specifically for the twin-engined VFW-Fokker 614 aircraft.


Design and development

The single-stage fan, together with a five-stage LP compressor, was driven by a three-stage LP turbine, whilst the seven-stage HP compressor was driven by a single-stage, air-cooled, HP turbine. An annular combustor and an unmixed exhaust, with a plug-type primary nozzle, were other design features.

The engine was developed at the time of the Rolls-Royce bankruptcy which resulted in delays in developing the engine.[1]

Specifications (M45H Mk.501)

Data from Jane's All the World's Aircraft 1971-72[2]


General characteristics

  • Type: Turbofan
  • Length: 2,600 mm (102.4in)
  • Diameter: 909 mm (35.8 in)
  • Dry weight: 673 kg (1,483 lb)


  • Compressor: 5-stage intermediate pressure and 7-stage high-pressure axial compressor with a single-stage fan
  • Bypass ratio: 3:1
  • Combustors: Annular
  • Turbine: 3-stage low pressure and single-stage high pressure turbines


See also

Comparable engines

Related lists



  1. ^ Swanborough 1971, p.371.
  2. ^ J W R Taylor 1971,p.650.
  3. ^


  • Swanborough, Gordon. Air Enthusiast, Volume One. London: Pilot Press, 1971. ISBN 0-385-08171-5.


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