Benz Bz.III

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Type	6-cylinder in-line water-cooled piston engine
National origin	Germany
Manufacturer	Benz & Cie.

The Benz Bz.III was a six-cylinder, water-cooled, inline engine developed in Germany for use in aircraft in 1914. Developing 112 kW (150 hp) at 1,400 rpm from 14.3 L (875 cu in),^[1] it powered many German military aircraft during World War I. It was replaced in production by the unrelated Benz Bz.IIIa.^[1] and eventually the V-8 Benz Bz.IIIb.

Applications

Friedrichshafen FF.33
Friedrichshafen FF.41
Friedrichshafen G.I
Gotha G.I
Hansa-Brandenburg KDW
Hansa-Brandenburg W.29
LFG Roland D.VII
R-planes – Germany's giant aircraft of WWI

Specifications

Data from ^[2]

General characteristics

Type: Six-cylinder, inline piston engine
Bore: 130 mm (5.118 in)
Stroke: 180 mm (7.087 in)
Displacement: 14.3 l (873 cu in)
Dry weight: 270 kg (595 lb)

Components

Valvetrain: One camshaft in the engine block, driving one inlet and one exhaust valve per cylinder via pushrods and rocker arms.
Cooling system: Water-cooled

Performance

Power output: 112 kW (150 hp) at 1,400 rpm
Specific power: 8.4 kW/l
Compression ratio: 4.7
Specific fuel consumption: 310 g/kWh

References

↑ 1.0 1.1 Smith 1981, p.53.
↑ Kyrill von Gersdorff 1981, p.19.

Smith, Herschel. Aircraft Piston Engines. New York, New York: McGraw-Hill, 1981. ISBN 0-07-058472-9.
Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. pp. 22–23.
Kyrill von Gersdorff, Kurt Grasmann. Flugmotoren und Strahltriebwerke, Bernard & Graefe Verlag, 1981, ISBN 3-7637-5272-2

External links

"Benz type FB, FD and FF aero engine manual". Retrieved 17 March 2013.
"150 HP Benz aero engine manual 1917". February 1917. Retrieved 17 March 2013.

v t e Benz aero engines

Bz.II Bz.III Bz.IIIb Bz.IV

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