Le Rhône 9C
| 9C | |
|---|---|
| |
| Le Rhône 9C engine installed in a Sopwith Pup at the Royal Air Force Museum London | |
| Type | Rotary engine |
| National origin | France |
| Manufacturer | Société des Moteurs Le Rhône / Gnome et Rhône |
| First run | Template:Avyear |
| Number built | 1,088 (British production) |
The Le Rhône 9C is a nine-cylinder rotary aircraft engine produced in France by Société des Moteurs Le Rhône / Gnome et Rhône. Also known as the Le Rhône 80 hp in a reference to its nominal power rating, the engine was fitted to a number of military aircraft types of the First World War. Le Rhône 9C engines were also produced under license in Germany, United States, Sweden and Great Britain by various companies,[1] and in the United States. The Swedish version built by AB Thulinverken was designated Thulin A. German production and development was carried out by Oberursel Moterwerken as the UR.I.
Design and development
In common with other Le Rhône series engines, the 9C featured highly visible telescopic copper induction pipes and used a single push-pull rod to operate its two overhead valves.[2]
Examples of Le Rhône 9C engines are on view in aviation museums either installed in aircraft exhibits or as stand-alone displays. A few examples of the 9C engine remain airworthy both in Europe and North America, one powering a vintage Sopwith Pup biplane in England, and a small number of others having powered reproduction WW I-era aircraft at Old Rhinebeck Aerodrome and other American "living" aviation museums that fly their restored original engines in both similarly restored original, and airworthy reproduction period aircraft.
Applications
- Bristol M.1
- Bristol Scout
- Caudron G.III
- Caudron G.IV
- Caudron C.43
- Caudron C.127
- Farman HF.20
- Grahame-White Type XV
- Grahame-White Bantam
- Morane-Saulnier G
- Morane-Saulnier H
- Morane-Saulnier L
- Morane-Saulnier N
- Morane-Saulnier P
- Mosca-Bystritsky MB 2bis
- Nieuport 10
- Nieuport 11
- Nieuport 21
- Nieuport 24 (trainers only)
- Nieuport 27 (trainers only)
- Nieuport 80
- Nieuport 81
- Nieuport 82
- Nieuport 83
- Pemberton-Billing P.B.23
- Ponnier M.1
- Royal Aircraft Factory F.E.8
- Royal Aircraft Factory S.E.4
- Sopwith Camel
- Sopwith Dove
- Sopwith Pup
- SPAD S.A-1
- SPAD S.A-4
- Thomas-Morse S-4
- Thulin Type A
- Vickers F.B.12
Survivors
Both the restored Shuttleworth Collection's airworthy Sopwith Pup and the 1960s-built reproduction Pup of the Owl's Head Transportation Museum (originally from Old Rhinebeck Aerodrome) are each powered by 80 hp Le Rhône 9C rotary engines, and fly regularly throughout the summer months.[3][4] An operative Le Rhone 9C is shown at the Museo Nacional de Aeronautica in Buenos Aires Argentina.
Engines on display
A Le Rhône 9C is installed in the Sopwith Pup on display at the Royal Air Force Museum London. After renovation this aircraft flew for a brief period in the 1970s and is now retired.[5]
Specifications (Le Rhône 9C)
Data from Lumsden.[1]
General characteristics
- Type: Nine-cylinder, single-row rotary engine
- Bore: 105 mm (4.13 in)
- Stroke: 140 mm (5.51 in)
- Displacement: 10.89 L (664.47 cu in)
- Diameter: 94.5 cm (37.2 in)
- Dry weight: 121.5 kg (268 lb)
Components
- Valvetrain: Cam-operated single rocker for both inlet and exhaust valves
- Oil system: Castor oil, total loss
- Cooling system: Air-cooled
Performance
- Power output: 92 hp (68.6 kW) at 1,300 rpm (maximum)
- Compression ratio: 4.5:1
See also
Comparable engines
Related lists
References
Notes
- ^ a b Lumsden 2003, p. 160.
- ^ Gunston 1989, p. 93.
- ^ CAA G-INFO - Sopwith Pup, G-EBKY Retrieved: 17 November 2010
- ^ Shuttleworth Collection - Sopwith Pup Retrieved: 06 April 2017.
- ^ Royal Air Force Museum London - Sopwith Pup, N5182- Full history Retrieved: 17 November 2010.
Bibliography
- Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
- Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
External links
