Benz Bz.III

Bz.III
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
Riesenflugzeug – 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 (overhead valve).
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 2 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.

Benz aero engines

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

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