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From Wikipedia, the free encyclopedia

Type X-type water-cooled piston engine
National origin France
Manufacturer Clerget Blin et Cie
First run 1918

The Clerget 16X was an experimental French 16-cylinder X engine built in about 1918.


Clerget are best known for their well engineered rotary engines produced from 1911 to the end of World War I in 1918, the first of their type to deliver fuel-air mixture to the cylinder heads by external induction tubes via externally push rod operated inlet valves. They later made a series of static radial aircraft diesel engines.[1][2][3] The experimental 16X was a departure from all of these; despite contemporary descriptions as a radial engine, it was in more modern terms an X-type, four stroke water-cooled petrol engine, essentially two 90° V-8 cylinder engines, one inverted, coupled to a common output shaft.[1]


Data from Jane's Fighting Aircraft of World War I[4][5]

General characteristics



  • Power output: 313 kW (419.74 hp) at 1,600 rpm
  • Compression ratio: 5:1
  • Fuel consumption: 0.48 l/kW/h (0.079 imp gal/hp/h; 0.095 US gal/hp/h)
  • Oil consumption: 0.038 l/kW/h (0.0063 imp gal/hp/h; 0.0076 US gal/hp/h))


  1. ^ a b Taylor, 2001, p.279
  2. ^ Gunston, 1989, p.41
  3. ^ Lumsden, 1994, p.133
  4. ^ Taylor, 2001, p.202-3
  5. ^ Grey, 1969, pp.1b-145b


  • Gunston, Bill (1989). World Encyclopaedia of Aero Engines (2 ed.). Wellingborough: Patrick Stephens Ltd. p. 41. ISBN 1-85260-163-9.
  • Lumsden, Alec (1994). British Piston Aero-engines and their Aircraft. Shrewsbury: Airlife. p. 133. ISBN 978-1-85310-294-3.
  • Taylor, Michael (2001). Jane's fighting aircraft of World War 1. London: Jane's Publishing Company. p. 279. ISBN 978-1-85170-347-0.
  • Grey, C.G. (1969). Jane's All the World's Aircraft 1919 (Facsimile ed.). David & Charles (Publishing) Limited. pp. 1b to 145b. ISBN 978-0-7153-4647-1.
This page was last edited on 2 January 2021, at 00:41
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