Object Details
Manufacturer
Daimler-Benz Aktiengesellschaft
Designer
Mercedes
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
Date
Circa 1918
Inventory Number
A19840907000
Restrictions & Rights
Usage conditions apply
Type
PROPULSION-Reciprocating & Rotary
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.)
Country of Origin
Germany
See more items in
National Air and Space Museum Collection
Data Source
National Air and Space Museum
Link to Original Record
Record ID
nasm_A19840907000