Engine Combinations

Manchester Mark

Engine

Horsepower

Mk. I/IA

Two (2) liquid cooled

X-Type Rolls-Royce Vulture

24 Cylinder. 4 banks of 6 cylinders each mounted at 90 degrees (forming an X) on a common crankcase.  Driving the propeller through a 0.35:1 reduction gear.

Engine weight: 1,800 lbs (816.5 Kg)

2,592 Cubic inches (42.49 litres).

Each cylinder consisting of a 5 inch bore with 5.5" stroke, four valves, operated by overhead camshafts. 2 spark plugs.

Two Independent magento's being used with H.T. distributors

Two stage Farman pattern supercharger.

1,845 hp each @ 3,000 RPM at 5,000 ft. (1,524 m)

1,170 hp each @ 3000 RPM at 15,000 ft. (4,572 m)

Engine Performance

Engine Rating

Supercharger Gear

RPM

Boost (PSI)

Fuel Consumption (per hour)

Barke

Horsepower

Take Off

MS

3000

+6

142.50 Gallons

539.40 Litres

1800

Max Climb

MS

FS

2850

2850

+16

+6

133.75 Gallons

506.29 Litres

123.75 Gallons 468.44 Litres

1700

1435

Max Cruise

MS

FS

2600

2600

+5

+5

133.75 Gallons

 506.29 Litres

101.25 Gallons

26.75 Litres

1480

1290

Econ. Cruise

MS

FS

2600

2600

+2

+2

80.63 Gallons

305.22 Litres

75.63 Gallons

 286.29 Litres

TBA

Propellers

Manchester Mark

Type

Mk. I/IA

Three 3 blade, de Havilland type No. 5140 or Nash Kelvinator type No. A4/138 variable pitch constant speed and feathering