WesWorld

Repository for data pertaining to aero engines of the Junkers group

Type: Twelve-cylinder supercharged liquid-cooled inverted V aircraft engine
Bore: 124 mm
Stroke: 136 mm
Displacement: 19.7 litres
Length: 1,478 mm
Width: 686 mm
Height: 960 mm
Dry weight: 442 kg

Valvetrain: Overhead camshaft
Supercharger: Two-speed centrifugal type supercharger with automatic boost control
Fuel system: Carburetor
Fuel type: 87 octane rating gasoline
Cooling system: Liquid-cooled, ethylene glycol
Reduction gear: Spur, 1.75:1 or 1.59:1

Power output: 681 hp at 2,700 rpm for takeoff, 690 hp at 2,700 rpm at 1,500 metres – first supercharger speed; 671 hp at 2,700 rpm at 3,700 metres – second supercharger speed

Type: Twelve-cylinder supercharged liquid-cooled 60-degree inverted V piston aircraft engine
Bore: 150 mm
Stroke: 165 mm
Displacement: 34.99 litres
Length: 1,768 mm
Diameter: 804 mm
Height 1,050 mm
Dry Weight: 585 kg

Valvetrain: Overhead camshaft, 3 valves per cylinder
Supercharger: Two-speed centrifugal type supercharger with automatic boost control |turbocharger
Fuel system: Carburetor
Fuel type: 87 octane rating gasoline
Cooling system: Liquid-cooled, ethylene glycol

Power output:

Jumo 211A (early): 986 hp at 2,200 rpm
Jumo 211A (late): 1,085 hp at 2,300 rpm
Jumo 211B: 1,184 hp at 2,400 rpm
Jumo 211F: 1,322 hp at 2,600 rpm
Jumo 211J: 1,401 hp at 2,600 rpm
Jumo 211N: 1,430 hp at 2,700 rpm
Jumo 211P: 1,479 hp at 2,700 rpm