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Euler D.I


Biplane Fighting Scout Aircraft


Imperial Germany | 1917



"The Euler D.I represented a World War I-era German Empire copy of the Allied Nieuport 11 biplane fighter."



Authored By: Staff Writer | Last Edited: 07/31/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
During the air war of World War 1 (1914-1918), Euler-Werke of the German Empire was one of several concerns given the task of designing a "fighting scout" in the image of the excellent French-made Nieuport 11 "Bebe" biplane fighter to serve German purposes in the conflict. The Bebe first appeared in January of 1916 and proved hugely instrumental in ending the reign of the German Fokkers - the period of dominance known as the "Fokker Scourge" which spanned from August of 1915 until early-1916.

The same biplane-winged, single-seat, single-engine configuration was adopted to produce the Euler D.I. V-shaped struts were used to brace the upper and lower wing members and an Oberursel U.O. 7-cylinder rotary engine of 80 horsepower output was selected to drive the two-bladed wooden propeller unit situated at the nose. The pilot sat aft of the engine installation and under/aft the upper wing member in the usual way. A portion of the wing member was cut away to aid viewing the action above the aircraft. The tail utilized a small-area rudder with low-set horizontal planes and the aircraft accomplished ground-running through a traditional tail-dragger arrangement.

As in the Nieuport 11, the D.I carried a single 7.92mm machine gun installed over the engine and synchronized to fire through the spinning propeller blades.

The aircraft could managed a maximum speed of 87 miles-per-hour and reached an altitude of 2,000 meters in just over 12 minutes.

A first-flight in prototype form of the D.I was recorded in the Fall of 1916. That October, German authorities, satisfied with the progress on the D.I, placed an order for some fifty aircraft even before the D.I had been truly tested. A pair of prototypes served as fighter trainers before the end of the year but the aircraft did not undertake the formal requisite trials until January of 1917. Another fifty aircraft were added to the existing order but these were finished to the D.II standard form detailed elsewhere on this site.

The Euler D.I held little impact, if any, on the war.

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Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Euler D.I Biplane Fighting Scout Aircraft.
1 x Oberursel U.O. 7-cylinder rotary piston engine developing 80 horsepower and driving a two-bladed wooden propeller at the nose.
Propulsion
87 mph
140 kph | 76 kts
Max Speed
525 ft/min
160 m/min
Rate-of-Climb
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Euler D.I Biplane Fighting Scout Aircraft.
1
(MANNED)
Crew
19.0 ft
5.80 m
O/A Length
26.6 ft
(8.10 m)
O/A Width
8.7 ft
(2.65 m)
O/A Height
838 lb
(380 kg)
Empty Weight
1,323 lb
(600 kg)
MTOW
Armament
Available supported armament and special-mission equipment featured in the design of the Euler D.I Biplane Fighting Scout Aircraft .
1 x 7.92 machine gun in fixed, forward-firing mounting over the nose synchronized to fire through the spinning propeller blades.
Variants
Notable series variants as part of the Euler D.I family line.
D.I - Base Series Designation.
Operators
Global customers who have evaluated and/or operated the Euler D.I. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 53 Units

Contractor(s): Euler-Werke - German Empire
National flag of the German Empire

[ German Empire ]
Relative Max Speed
Hi: 100mph
Lo: 50mph
Aircraft Max Listed Speed (87mph).

Graph Average of 75 MPH.
Era Crossover
Pie graph section
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Production Comparison
53
36183
44000
Entry compared against Ilyushin IL-2 (military) and Cessna 172 (civilian) total production.
MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030
Aviation Timeline
EarlyYrs
WWI
Interwar
WWII
ColdWar
Postwar
Modern
Future
1 / 1
Image of the Euler D.I
Image from the Public Domain.

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.
AIR-TO-AIR COMBAT
Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
The Euler D.I Biplane Fighting Scout Aircraft appears in the following collections:
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