Benz & Cie of Mannheim, Germany, manufactured nearly 6,500 Benz BZ 4S engines between 1914 and 1918. The engine followed the usual German practice of having a separate water-cooled cylinder bolted to the crank case by long studs. The studs passed through the crank chamber top half and secured the crank shaft bearings between the top and bottom halves of the crank case.
The BZ 4S powered various German reconnaissance, bomber, and infantry patrol aircraft, including the Ago C.II, C.IV, and C.VII; A.E.G. J.I and J.II; Albatros J.I and C.VII; D.F.W. C.V; Halberstadt C.V; and Junkers J.I.
Display Status
This object is on display in Boeing Aviation Hangar at the Steven F. Udvar-Hazy Center in Chantilly, VA.
Object Details
Date
1914
Country of Origin
Germany
Type
PROPULSION-Reciprocating & Rotary
Manufacturer
Benz
Physical Description
Type: Reciprocating, In-line, 6 cylinders, liquid cooled
Power rating: 205 kW (275 hp) at 1,500 rpm
Displacement: 18.8 L (1,149 cu in.)
Bore and Stroke: 145 mm (5.71 in.) x 190 mm (7.48 in.)
Weight: 385 kg (848 lb)
Dimensions
Length 149.9 cm (59.0 in.), Width 53.1 cm (20.9 in.), Height 131.3 cm (51.7 in.)
Inventory Number
A19670100000
Credit Line
Found in collection
Data Source
National Air and Space Museum
Restrictions & Rights
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