Reinhold Krieger’s
Argus As 10C

Reinhold Krieger has designed and built this impressive Argus As 10C aero engine from the 1930s. Reinhold also built the DH Gipsy Major 1 engine described here recently. Like the Gipsy, the Argus drawings and castings are available. Click here for details.


This engine was a successful inverted  V-8-cylinder, air-cooled, engine, built in large numbers and famously used in the Fieseler Storch of which several thousand were built and used in many countries.


Engine vital statistics:

Bore: 120 mm (4.72 in)

Stroke: 140 mm (5.5 in)

Displacement: 12.667 L (773 in³)

Length: 1,105 mm (43.51 in)

Height: 936 mm (36.85 in)

Dry weight: 213 kg (470 lb)


Valve train: Two valves per cylinder.

Fuel system: Two Sun carburetors adapted for aerobatics

Fuel: 80 octane

Cooling system: Air


Power output: 179 kW (240 hp) at 2,000 rpm

Specific power: 14.8 kW/L (0.31 hp/in³)

Compression ratio: 5.9:1

Specific fuel consumption: 235 gr/(hp*h); 0.518 lb/(hp*h)

Power-to-weight ratio: 0.835 kW/kg (0.51 hp/lb)


As well as the Storch reconnaissance aircraft, the Argus As 10C was used in:

Arado Ar 66

Arado Ar 76

Arado Ar 77

Dornier Do 12

Fieseler Fi 156 Storch

Flettner Fl 339

Focke-Wulf Fw 56

Focke-Wulf Fw 186

Gotha Go 145

Gotha Go 149

Heinkel He 63

Heinkel He 74

Henschel Hs 121

Henschel Hs 125

Messerschmitt Bf 108

Messerschmitt Bf 163

Siebel Si 201