Pratt & Whitney R-4360 WASP Major 28-Cylinder 71L Supercharged 4,300hp 3,200 kW

General characteristics :

Type: 28-cylinder supercharged air-cooled four-row radial engine
Bore: 5.75 in (146 mm)
Stroke: 6.00 in (152 mm).

Displacement: 4,362.5 cu in (71,489 cm3).
Length: 96.5 in (2,450 mm)
Diameter: 55 in (1,400 mm)
Dry weight: 3,870 lb (1,760 kg)

Components :

Valvetrain: Poppet, two valves per cylinder

Supercharger: Gear-driven single stage variable speed centrifugal type supercharger

Turbocharger: General Electric CHM-2

Fuel system: Bendix-Stromberg PR-100E2 pressure carburetor
Fuel type: 115/145 Aviation gasoline

Oil system: Dry sump
Cooling system: Air-cooled

Performance :

Power output: 4,300 hp (3,200 kW)

Specific power: 0.99 hp/in3 (45 kW/L)
Compression ratio: 6.7:1
Power-to-weight ratio: 1.11 hp/lb (1.82 kW/kg)

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