Oberursel UR IIIa
Before 1914, the Oberursel company of Frankfurt, Germany had obtained a license to build Gnome engines. However, these pre-World War I designs became obsolete, and with the encouragement of the Army's Inspectorate of Aviation, the company embarked on the manufacture of a copy of the 82 kw (110 hp) Le Rhone engine. Oberursel-built copies began to be available from 1917.
Convinced of the merits of the rotary engine for conferring good performance on his aircraft, Fokker acquired the Oberursel company. Oberursel Le Rhones powered aircraft such as the Fokker Triplane and D VI scouts.
This 119 kw (160 shp) Oberursel UR IIIa powered Fokker D VI, Fokker Dr I, and Pfalz D VI aircraft during World War I.
Display Status
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Country of Origin
Germany
Type
PROPULSION-Components (Engine Parts)
Manufacturer
Oberursel Motoren Gesellschaft (Frankfurt, Germany)
Physical Description
119 kw (160 shp), one piston and connecting rod.
Dimensions
3-D: 33 × 10.8 × 14.6cm (1 ft. 1 in. × 4 1/4 in. × 5 3/4 in.)
Materials
Steel - Rod
Aluminum - Piston
Copper alloy - Bushing
Inventory Number
A19340005001
Credit Line
Transferred from the War Department, Air Corps, Materiel Division, Wright Field, Dayton, Ohio. No known restrictions.
Data Source
National Air and Space Museum
Restrictions & Rights
Usage conditions apply
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