- Source: Clerget 9B
The Clerget 9B is 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.
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
=Armstrong Whitworth F.K.10
Avro 504
Avro 531
Bristol M.1
Cierva C.6
Cierva C.8
Fairey Hamble Baby
FBA Type C
Nieuport 12
Nieuport 17bis
Sopwith Baby
Sopwith Camel
Sopwith Scooter
Sopwith Triplane
Sopwith 1½ Strutter
= Clerget 9Bf
=Sopwith Camel
Engines on display
A preserved Clerget 9B engine is on public display at the Fleet Air Arm Museum, RNAS Yeovilton.
A Clerget 9Bf engine is on display at the Powerhouse Museum, Sydney.
A Clerget 9B is on display at the Pima Air & Space Museum in Arizona.
Operational (Airworthy) Rotary Engines
The Shuttleworth Collection based at Old Warden Aerodrome, UK, operate an airworthy late production Sopwith Triplane (G-BOCK) fitted with an original 9B as well as an airworthy late production Sopwith Camel (G-BZSC) fitted with an original long-stroke 9Bf. These aircraft can be seen displaying at home air displays through the summer months.
Specifications (Clerget 9B)
Data from Lumsden.
= General characteristics
=Type: Nine-cylinder air-cooled rotary engine
Bore: 120 mm (4.72 in)
Stroke: 160 mm (6.30 in)
Displacement: 16.29 L (994.08 cu in)
Length: 920 mm (36.22 in)
Diameter: 1,020 mm (40.15 in)
Dry weight: 173 kg (381 lb)
= 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: 97 kW (130 hp) at 1,250 rpm
Specific power: 0.1308 hp/cu in (5.953 kW/L)
Compression ratio: 4.56:1
Specific fuel consumption: 0.564 L/kW/hour(0.74 pt/hp/hour)
Oil consumption: 0.0686 L/kW/hour (0.09 pt/hp/hour)
Power-to-weight ratio: 0.563 kW/kg (0.341 hp/lb)
See also
Clerget aircraft engines
Related development
Bentley BR1
Bentley BR2
Comparable engines
Gnome Monosoupape
Le Rhône 9J
Related lists
List of aircraft engines
References
= Notes
== 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.
Kata Kunci Pencarian:
- Clerget 9B
- Clerget aircraft engines
- Sopwith Triplane
- Bentley BR1
- Sopwith 1½ Strutter
- Sopwith Camel
- Nieuport 12
- Audenis C2
- Clerget-Blin
- Morane-Saulnier MoS-50
