Green E.6
# Green E.6

The Green E.6 was a British six-cylinder, water-cooled aero engine that first ran in 1911, it was designed by Gustavus Green and built by the Green Engine Co and Mirlees, Bickerton & Day of Stockport between August 1914 and December 1918.

## Applications

* Avro 504K
* Avro 523A
* Bass-Paterson flying boat
* Cody Type V
* Eastbourne Aviation Circuit biplane
* Gnosspelius Hydro Tractor Biplane
* Grahame-White Type X Charabanc
* Royal Aircraft Factory F.E.2a
* Short S.68 Seaplane
* Sopwith Bat Boat
* Sopwith Three-seater
* Sopwith 1913 Circuit of Britain floatplane
* Sopwith Type TT

## Engines on display

A preserved Green E.6 engine is on public display at the Fleet Air Arm Museum, RNAS Yeovilton.

## Specifications (E.6)

Data from Lumsden

### General characteristics

* Type: 6-cylinder, inline, upright piston engine
* Bore: 5.51 in (140 mm)
* Stroke: 5.98 in (152 mm)
* Displacement: 855.54 cu in (14.03 L)
* Dry weight: 440 lb (200 kg)

### Components

* Valvetrain: Gear driven overhead camshaft, two valves per cylinder
* Fuel type: 40-50 octane petrol
* Cooling system: Water-cooled
* Reduction gear: Direct drive, right-hand tractor

### Performance

* Power output: 120 hp (89.5 kW) at 1,300 rpm (maximum power)
* Specific power: 0.14 hp/cu in (6.4 kW/L)
* Power-to-weight ratio: 0.27 hp/lb (0.45 kW/kg)
