Type: Inverted 60o V-12 cylinder air cooled piston
Bore: 105 mm
Stroke: 115 mm
Displacement: 11.94 litres
Length: 1,507 mm
Width: 680 mm
Height: 853 mm
Dry weight: 270 kg
Supercharger: Light alloy centrifugal type, driven at 3.86 times crankshaft speed.
Fuel system: Supercharger drew through twin Pallas 65VH2 carburetters with automatic mixture control and equipped for inverted flight. One Bosch double magneto with automatic advance.
Oil system: Metered fresh oil to cylinder barrels and crankshaft bearings. Splash lubrication for supercharger and camshaft. Stökicht Sun and planet reduction gear lubricated by high pressure oil.
Cooling system: Air
Power output: maximum 360 hp at 3,000 rpm, rated 300 hp at 2,810 rpm, take off 400 hp