As 10
Argus As 10 installed in a Fieseler Storch at the Royal Air Force Museum Cosford
Type	Piston aircraft engine
Manufacturer	Argus Motoren
First run	1928
Major applications	Fieseler Fi 156 Storch Focke-Wulf Fw 56 Stösser Messerschmitt Bf 108 Taifun
Number built	28,700

The Argus As 10 was a German-designed and built, air-cooled 90° cylinder bank-angle inverted V8 "low power" aircraft engine, used mainly in training aircraft such as the Arado Ar 66 and Focke-Wulf Fw 56 Stösser and other small short-range reconnaissance and communications aircraft like the Fieseler Fi 156 Storch during, and shortly after World War II. It was first built in 1928.^[1]

As 10C

As 10C-1

As 10E

Optional-output version of the As 10C, delivered with either a 240 PS (177 kW) or 270 PS (199 kW) rating (achieved by increasing maximum rpm).

As 10E-2

The proposed powerplant of the Pilatus P-1 trainer project.^[2]

As 401

Supercharged As 10 with rated output at 3,000 m (9,843 ft), also fitted with hydraulically actuated variable pitch propeller.

Salmson 8As-00

Postwar production of the Argus As 10 in France

Salmson 8As-04

Postwar production of the Argus As 10 in France

• AGO Ao 192
• Arado Ar 66
• Arado Ar 76
• Dornier Do 12
• Farman F.510 Monitor II^[3]
• Fieseler Fi 156 Storch
• Focke-Wulf Fw 56 Stösser
• Focke-Wulf Fw 58
• Gotha Go 145
• Henschel Hs 121
• Kayaba Ka-1 Imperial Japanese Army Observation autogiro
• Klemm Kl 151
• Messerschmitt Bf 108 Taifun
• Rogozarski SIM-XIV-H
• Siebel Si 201

Data from Jane's All the World's Aircraft 1938,^[4] Flugzeug-Typenbuch. Handbuch der deutschen Luftfahrt- und Zubehör-Industrie 1944^[5]

• Type: inverted V-8 air-cooled inverted 90° piston engine
• Bore: 120 mm (4.724 in)
• Stroke: 140 mm (5.512 in)
• Displacement: 12.667 L (772.99 cu in)
• Length: 1,105 mm (43.50 in)
• Width: 880 mm (34.65 in)
• Height: 718 mm (28.27 in)
• Dry weight: 213 kg (470 lb) dry

232 kg (511 lb) wet, equipped

• Valvetrain: Two under-head valves per cylinder, operated by pushrods and rockers.
• Fuel system: Two Sun carburetors adapted for aerobatics
• Fuel type: 80 octane
• Oil system: Dry sump, one pressure pump at 1.25–6 atm (1.27–6.08 bar; 18.4–88.2 psi) and two scavenge pumps
• Cooling system: Air

• Power output:  

• 240 PS (237 hp; 177 kW) at 2,000 rpm (5 minutes) at sea level
• 220 PS (217 hp; 162 kW) at 1,940 rpm (30 minutes) at sea level
• 200 PS (197 hp; 147 kW) at 1,890 rpm (max continuous) at sea level

• Specific power: 18.95 PS/L (0.3063 hp/cu in; 13.94 kW/L)
• Compression ratio: 5.9:1
• Specific fuel consumption: 0.23 kg/PSh (0.51 lb/(hp⋅h); 0.31 kg/kWh) at max continuous
• Oil consumption: 0.008 kg/PSh (0.018 lb/(hp⋅h); 0.011 kg/kWh) at max continuous
• Power-to-weight ratio: 1.124 PS/kg (0.503 hp/lb; 0.827 kW/kg)0.835 kW/kg (0.51 hp/lb)

B.M.E.P.: 7.5 atm (760 kPa; 110 psi)

Related lists

• List of aircraft engines

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