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Clerget 9B

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This page is a soft redirect.Preserved Clerget 9B engine on display at the Fleet Air Arm Museum, RNAS Yeovilton. #REDIRECTmw:Help:Magic words#Other
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9B
Type

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This page is a soft redirect. Rotary engine #REDIRECTmw:Help:Magic words#Other
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National origin

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This page is a soft redirect. France #REDIRECTmw:Help:Magic words#Other
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Manufacturer

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This page is a soft redirect. Clerget-Blin #REDIRECTmw:Help:Magic words#Other
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First run

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This page is a soft redirect. 1913 #REDIRECTmw:Help:Magic words#Other
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Major applications

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This page is a soft redirect. Sopwith Camel #REDIRECTmw:Help:Magic words#Other
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Number built

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This page is a soft redirect. 3,650 (British production) #REDIRECTmw:Help:Magic words#Other
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Unit cost

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This page is a soft redirect. £907.50 (1915)[1] #REDIRECTmw:Help:Magic words#Other
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Developed into

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This page is a soft redirect. Bentley BR1

The Clerget 9B was a nine-cylinder rotary aircraft engine of the World War I era designed by Pierre Clerget. Manufactured in both France and Great Britain (Gwynnes Limited), it was used on such aircraft as the Sopwith Camel. The Clerget 9Bf was an increased stroke version.[2]

Variants

Clerget 9B

(1913) 130 hp (97 kW). 1,300 produced by Ruston Proctor & Co Ltd of Lincoln

Clerget 9Bf

(1915) 140 hp (104 kW). Extended stroke (172 mm (6.75 in)) version, increasing capacity to 17.5 L (1,066.5 cu in). 1,750 produced by Gwynnes Limited and 600 produced by Ruston Proctor.

Applications

Clerget 9B

Clerget 9Bf

Engines on display

Specifications (Clerget 9B)

Data from Lumsden.[2][4]

General characteristics

  • Type: Nine-cylinder air-cooled rotary engine
  • Bore: Script error: No such module "convert".
  • Stroke: 9B: Script error: No such module "convert"., 9Bf: Script error: No such module "convert".
  • Displacement: 9B: Script error: No such module "convert"., 9Bf: Script error: No such module "convert".
  • Length: Script error: No such module "convert".
  • Diameter: 9B: Script error: No such module "convert"., 9Bf: Script error: No such module "convert".
  • Dry weight: Script error: No such module "convert".

Components

  • Valvetrain: Single inlet and exhaust valves operated by pushrods and rockers
  • Fuel system: Bloctube carburettor
  • Fuel type: Gasoline mixed with Castor oil lubricant
  • Oil system: Castor oil mixed with fuel
  • Cooling system: Air-cooled

Performance

  • Power output: 9B: Script error: No such module "convert". at 1,250 rpm, 9Bf: Script error: No such module "convert". at 1,250 rpm
  • Specific power: 9B: 0.1308 hp/cu in (5.953 kW/l), 9Bf: 0.131 hp/cu in (5.966 kW/l)
  • Compression ratio: 9B: 4.56:1, 9Bf: 5.3:1
  • Specific fuel consumption: 9B: 0.564 l/kW/hour(0.74 pt/hp/hour), 9Bf: 0.45 l/kW/hour(0.59 pt/hp/hour)
  • Oil consumption: 9B: 0.0686 l/kW/hour (0.09 0.11 pt/hp/hour), 9Bf: 0.0838 l/kW/hour (0.11 pt/hp/hour)
  • Power-to-weight ratio: 9B: 0.563 kW/kg (0.341 hp/lb), 9Bf: 0.556 kW/kg (0.337 hp/lb)

See also

Related development

Comparable engines
Related lists

References

Notes

  1. ^ Gunston 1989, p. 41.
  2. ^ a b Lumsden 2003, p. 133.
  3. ^ Powerhouse Museum - Clerget 9Bf Retrieved: 12 November 2010.
  4. ^ 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. 

Bibliography

  • Gunston, Bill. World Encyclopaedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 978-1-85260-163-8
  • Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 978-1-85310-294-3.
  • 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. 
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