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The Oberursel U.I was an early German aircraft engine that powered many German fighter aircraft in the first part of
World War I
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
. It was a 9-cylinder air-cooled
rotary engine
The rotary engine is an early type of internal combustion engine, usually designed with an odd number of cylinders per row in a radial configuration. The engine's crankshaft remained stationary in operation, while the entire crankcase and i ...
, a licence-built copy of the
Gnome Delta
The Gnome 9 Delta was a French designed, nine-cylinder, air-cooled rotary aero engine that was produced under license in Britain. Powering several World War I era aircraft types it produced from its capacity of .
Variants
;Delta:The baseline ...
[Kyrill von Gersdorff, Kurt Grasmann. ''Flugmotoren und Strahltriebwerke'', Bernard & Graefe Verlag, 1981, ] that Oberursel was producing under licence before the war. It produced 75 kW (100 hp).
Applications
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AGO DV.3
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Euler D.I
The Euler D.I was a German single-seat fighter based on the French Nieuport 17. After seeing the success of the French Nieuport 11 at the front, German designer August Euler set about to create a German aircraft based on the Nieuport design. Th ...
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Euler D.II
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Feiro Dongó
The Feiro Dongó (in English, Feiro Bumblebee) was a Hungarian side-by-side trainer biplane. It was notable for its high aspect ratio wings, aerodynamic clearness and high lift/drag ratio.
Design
The Feiro Dongó was the second design of La ...
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Fokker D.II __NOTOC__
The Fokker D.II was a German fighter biplane of World War I. It was a single-seat fighter aircraft developed before the Fokker D.I. It was based on the M.17 prototype, with single-bay unstaggered wings and a larger fuselage and short ...
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Fokker D.V
The Fokker D.V (Fokker designation M.22) was a German biplane fighter of World War I
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included mu ...
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Fokker E.II
The Fokker E.II was the second variant of the German Fokker Eindecker single-seat monoplane fighter aircraft of World War I. The E.II was essentially a Fokker E.I with the 75 kW (100 hp) Oberursel U.I 9-cylinder rotary engine, a close ...
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Fokker E.III
The Fokker E.III was the main variant of the ''Eindecker'' (literally meaning "one deck") fighter aircraft of World War I. It entered service on the Western Front in December 1915 and was also supplied to Austria-Hungary and Turkey.
Design and ...
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Gotha LD 5
The Gotha LD 5 (for ''Land Doppeldecker'' - "Land Biplane") was a military aircraft produced in Germany during the early part of World War I.
Development
Developed to the ''Kavallerie Flugzeug'' requirement for light fast scouting aircraft, th ...
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Pfalz A.II
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Pfalz E.II
The Morane-Saulnier H was an early aircraft first flown in France in the months immediately preceding the First World War; it was a single-seat derivative of the successful Morane-Saulnier G with a slightly reduced wingspanTaylor 1989, p.648"The ...
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Pfalz E.III
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Pfalz E.VI
The Morane-Saulnier H was an early aircraft first flown in France in the months immediately preceding the First World War; it was a single-seat derivative of the successful Morane-Saulnier G with a slightly reduced wingspanTaylor 1989, p.648"The ...
*
Siemens-Schuckert E.III
References
{{Oberursel aeroengines
1910s aircraft piston engines
Rotary aircraft piston engines