Benz BZ 4S
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.
Country of Origin: Germany
Length 149.9 cm (59.0 in.), Width 53.1 cm (20.9 in.), Height 131.3 cm (51.7 in.)
Type: In-line, 6 cylinders, liquid cooled
Power rating: 205 kW (275 hp) at 1,500 rpm
Displacement: 18.8 L (1,149 cu in)
Weight: 385 kg (848 lb)
Manufacturer: Benz & Cie, Mannheim, Germany
Has data plate; missing carburetor, magneto, spark plugs, ignition wiring, 2 push rods, and coolant lines; on stand.