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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.[1]

9B
Preserved Clerget 9B engine on display at the Fleet Air Arm Museum, RNAS Yeovilton.
Type Rotary engine
National origin France
Manufacturer Clerget-Blin
First run 1913
Major applications Sopwith Camel
Number built 3,650 (British production)
Developed into Bentley BR1

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 9B powered Sopwith 1½ Strutter on display at the Royal Air Force Museum London
Clerget 9B powered Sopwith 1½ Strutter on display at the Royal Air Force Museum London

Clerget 9Bf



Engines on display



Operational (Airworthy) Rotary Engines


The Shuttleworth Collection based at Old Warden Aerodrome, UK, operate an airworthy late production Sopwith Triplane (G-BOCK)[3] fitted with an original 9B as well as an airworthy late production Sopwith Camel (G-BZSC)[4] fitted with an original long-stroke 9Bf. These aircraft can be seen displaying at home air displays through the summer months.


Specifications (Clerget 9B)


Clerget 9B
Clerget 9B

Data from Lumsden.[1][5]

General characteristics

Components

Performance


See also


Related development

Comparable engines

Related lists


References



Notes


  1. Lumsden 2003, p. 133.
  2. Powerhouse Museum - Clerget 9Bf Retrieved: 12 November 2010.
  3. The Shuttleworth Collection - Sopwith Triplane Retrieved: 21 August 2018
  4. The Shuttleworth Collection - Sopwith Camel Retrieved: 21 August 2018
  5. 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



На других языках


- [en] Clerget 9B

[it] Clerget 9B

Il Clerget Type 9 era un motore aeronautico rotativo a 9 cilindri disposti su una singola stella, raffreddato ad aria, prodotto in Francia dalla Clerget-Blin e in Gran Bretagna dalla Gwynne Ltd nei primi anni del Novecento.



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