Daimler-Motoren (Mercedes) DIII Avu, In-line 6 Engine

Object Details

Physical Description: Type: Reciprocating, In-line, 6 cylinders, Water-cooled; Power rating: 128 kW (170 hp) at 1,450 rpm; Displacement: 14.8 L (901.32 cu. in.); Bore and Stroke: 140 mm (5.51 in) x 160 mm (6.3 in); Weight: 288 kg (635 lb)
Summary: Developed from the Type 1466, which was used in large numbers from the beginning of World War I, this engine was manufactured by Daimler Motoren Gesellschaft in Stuttgart-Unterturkheim, Germany. On August 1, 1918, it was shipped to the Pfalzflugzeugwerke in Speyer, Germany for installation in a Pfalz fighter aircraft.; This is a rare high-altitude version of the Mercedes Daimler IIIa. To obtain more power for high-altitude operation, it was over dimensioned and supercharged. The DIII av was certificated in June 1918, and flew for the first time on September 20, 1918 in a Fokker D VII. After August 1918, aluminum pistons were used in the engine, and the compression ratio was raised to 1:6.6.

Credit Line: Transferred from the U.S. Air Force Museum, Wright-Patterson AFB, Ohio

Circa 1918

Materials: Steel, Aluminum, Paint, Brass, Rubber, Preservative coating, Phenolic, Textile, Wood
Dimensions: Depth 134.6 cm (53 in.), Length 177.8 cm (70 in.), Width 71.1 cm (28 in.)

National Air and Space Museum

GUID (Link to Original Record): http://n2t.net/ark:/65665/nv9851ef083-06d5-4661-90d1-aa22fa297344