| Gamma | |
|---|---|
| Type | Rotary aero engine |
| Manufacturer | Gnome et Rhone |
| First run | c.1911 |
| Major applications | Blériot XXI Handley Page H.P.3 |
The Gnome 7 Gamma was a French designed, seven-cylinder, air-cooled rotary aero engine. Powering several pre-World War I era aircraft types it produced 70 horsepower (52 kW) from its capacity of 12 litres (680 cubic inches).[1]
A 14-cylinder variant was known as the Gnome 14 Gamma-Gamma.
Variants
- Gnome 7 Gamma
- Seven-cylinder, single-row rotary engine.
- Gnome 14 Gamma-Gamma
- 14-cylinder, two-row rotary engine using Gamma cylinders. 140 hp (104 kW).
Applications
List from Lumsden
Gnome 7 Gamma
- Blériot XXI
- Bristol Biplane Type T
- Bristol Prier-Dickson
- Henry Farman Biplane
- Grahame-White Passenger Biplane VIIc
- Handley Page H.P.3
- Morane-Borel seaplane
- Nieuport Monoplane
- Paulhan Biplane
- Royal Aircraft Factory B.E.3
- Royal Aircraft Factory B.E.4
- Short School Biplane
- Short S.32
- Short S.36
- Short S.38
- Short S.45
- Sopwith Three-Seater
- Vickers No.6 Monoplane
- Vickers No.8 Monoplane
Gnome 14 Gamma-Gamma
Specifications (Gnome 7 Gamma)
Data from Lumsden.[1]
General characteristics
- Type: 7-cylinder, single-row, rotary engine
- Bore: 120 mm (4.7 in)
- Stroke: 130 mm (5.1 in)
- Displacement: 11.14 L (679.84 cu in)
- Length: 112.7 cm (44.4 in)
- Diameter: 86.9 cm (34.2 in)
Components
- Valvetrain: Automatic centre-piston inlet valve, overhead exhaust valve (one each per cylinder)
- Cooling system: Air-cooled
- Reduction gear: Direct drive, right-hand tractor, left-hand pusher
Performance
- Power output: 52.2 kW (70 hp) at 1,200 rpm
See also
Comparable engines
Related lists
References
Wikimedia Commons has media related to Gnome Gamma.
Notes
Bibliography
- Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
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