Green C.4

C.4
Preserved Green C.4.
Type	Piston aero engine
Manufacturer	Green Engine Co Ltd
Designer	Gustavus Green
First run	c.Template:Avyear
Major applications	Avro Type D

The Green C.4 was a British four-cylinder, water-cooled aero engine that first ran in 1908, it was designed by Gustavus Green and built by the Green Engine Co and Aster Engineering. The engine was one of two Green designs to win a government prize.

Applications

• Aeronautical Syndicate Valkyrie Type A
• Avro Type II
• Avro Type III
• Avro Type IV
• Avro Type D
• Avro Baby
• Blackburn Monoplane 1
• Handley Page Type B
• Handley Page Type D
• Hornstein biplane
• Macfie Empress
• Martin-Handasyde No.3
• Neale VII biplane
• Short No.2 Biplane
• Short S.27 (Manufacturer No.s S.26 and S.28)
• Sopwith Burgess-Wright
• Wells Reo

Engines on display

A preserved Green C.4 engine is on public display at the Royal Air Force Museum London.

Specifications (C.4)

Data from Lumsden

General characteristics

• Type: 4-cylinder, inline, upright piston engine
• Bore: 4.13 in (105 mm)
• Stroke: 4.73 in (120 mm)
• Displacement: 253.44 cu in (4.158 L)
• Length: 39 in (991 mm)
• Width: 16 in (406 mm)
• Height: 28 in (711 mm)
• Dry weight: 184 lb (83 kg)

Components

• Valvetrain: Gear driven overhead camshaft, two valves per cylinder
• Fuel type: Petrol
• Cooling system: Water-cooled
• Reduction gear: Direct drive, right-hand tractor

Performance

• Power output: 52.5 hp (39 kW) at 1,460 rpm (maximum power)
• Specific power: 0.2 hp/cu in (9.37 kw/L)
• Power-to-weight ratio: 0.28 hp/lb (0.46 kW/kg)

See also

Related lists

• List of aircraft engines

References

Bibliography

• Gunston, Bill. World Encyclopaedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
• Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.

External links

• Flight, March 1910 - The "Green" engine