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Rumpler D.I

1917 WORLD WAR 1

History

Germany's Rumpler began developing a new fast biplane in 1917, named "8D1". This type is intended for scouting/hunting roles, so it has good stamina and general performance. The first flight took place in 1917, but a long development period meant that the aircraft could not reach the numbers required in 1918.

In November of the same year, the German Empire surrendered to end the war.

The 8D1 was in service with the Luftwaffe as "D.I". Overall, this is a conventional design arrangement using unequal span wing elements (above and below the fuselage), a streamlined fuselage, fixed (wheeled) landing gear and a monoplane tail.

Balanced ailerons are placed on the upper wing plate, and the two wing assemblies are connected by I-stays, giving the appearance of a single bay.

The original prototype was known internally as the 7D1 by Rumpler. It had radiators installed on the upper wing units (ports), and the construction of the aircraft involved plywood skins. The 7D2 had vertical stabilizers installed, but more or less imitated earlier forms. The wing struts were modified in eh 7D4 and the cooler elements were moved to the centerline area of ??the wing. Added cloth skin to the main hull area.

Then 7D5, then 7D7. The latter follows the design of the 7D4, but again with revised pillar work. A new radiator was introduced, now closer to the nose. The 7D8 consists of the 7D7 with a simplified network of structural wires.

The 8D1 prototype represented the final form of the series, known as the D.I.

At the time of construction, the D.I was 18.9 feet long, with a wingspan of 27.7 feet and a height of 8.4 feet. Curb weight is 1,400 lbs and total weight is 1,850 lbs. Power is provided by a 160-horsepower Mercedes D.III production engine, propelling the aircraft to a speed of 110 mph, a range of 230 miles and a service ceiling of 23,000 feet.

Armament consists of 2 x 7.92mm LMG 08/15 machine guns mounted on fixed forward-firing mounts that fire synchronously through rotating propeller blades.

The design of the D.I was not completed until 1918, which meant it had as little impact on the outcome of the war as possible. The Luftwaffe sanctioned serial production of this type, but the end of the war in November 1918 meant the end of the road to the D.I series - no one saw combat in the Great Conflict, and it ended up in the pages of aviation history.