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Aviation / Aerospace

AEG D.I


Biplane Fighter Prototype Aircraft [ 1917 ]



The AEG D.I biplane fighter program was marred by crashes of two of the three prototypes - as such the 20-strong pre-series order was cancelled.



Authored By: Staff Writer | Last Edited: 07/31/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

VIEW SPECIFICATIONS [+]
Allgemeine Elektricitats-Gesellschaft AG (AEG) served the German Empire in World War 1 (1914-1918) as an aircraft maker. Among their contributions was the short-lived AEG D.I biplane fighter. This design managed only three prototypes for its time and a first-flight was held during May 1917. The AEG Dr.I was an off-shoot of the series, developed along the lines of a triplane fighter. It was no more successful with just one example constructed.

The D.I marked the first fighter to be developed by the company and it incorporated traditional biplane qualities - an over-under wing arrangement, fixed wheeled undercarriage (tail-dragger), and open-air cockpit. The wings were slightly unequal span with a single bay each and single struts reinforced the members outboard of the fuselage. The pilot sat in an open-air cockpit under and aft of the upper wing assembly. The engine was fitted forward of the pilot in a streamlined housing and drove a two-bladed propeller at the nose. Internally there was a steel-tubed understructure and fabric skinning was used along the wing surfaces. Proposed armament was 2 x 7.92mm LMG 08/15 machine guns set over the nose and synchronized to fire through the spinning propeller blades. Power was from a Daimler D.IIIa 6-cylinder liquid-cooled inline piston engine of 160 horsepower.

As tested, the D.I managed a top speed of 127 miles per hour and ranged out to 300 miles. Its service ceiling was 16,000 feet and initial rate-of-climb reached 1,313 feet per minute.

A total of three prototypes were eventually completed by AEG with the first arriving in May of 1917. Between August and September of that year, the aircraft saw a lengthening of its fuselage to improve stability. The radiators were changed in the second and third prototypes.

Despite a prototype having crashed during testing, some twenty pre-production forms were ordered by the German Air Service for active evaluations. Following the crash of a second prototype on September 5, 1917, this commitment was abandoned and the D.I fell to history - proving to be unstable and a handful at the controls.©MilitaryFactory.com
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Specifications



Allgemeine Elektricitats-Gesellschaft AG (AEG) - Imperial Germany
Manufacturer(s)
German Empire (cancelled)
Operators National flag of the German Empire
1917
Service Year
Imperial Germany
National Origin
Cancelled
Project Status
1
Crew
3
Units


AIR-TO-AIR COMBAT
General ability to actively engage other aircraft of similar form and function, typically through guns, missiles, and/or aerial rockets.
X-PLANE
Aircraft developed for the role of prototyping, technology demonstration, or research / data collection.


20.0 ft
(6.10 meters)
Length
27.9 ft
(8.50 meters)
Width/Span
8.7 ft
(2.65 meters)
Height
1,510 lb
(685 kilograms)
Empty Weight
2,072 lb
(940 kilograms)
Maximum Take-Off Weight
+562 lb
(+255 kg)
Weight Difference


1 x Daimler D.IIIa 6-cylinder liquid-cooled inline piston engine developing 160 horsepower and driving a two-bladed propeller at the nose.
Propulsion
127 mph
(205 kph | 111 knots)
Max Speed
16,404 ft
(5,000 m | 3 miles)
Ceiling
289 miles
(465 km | 251 nm)
Range
1,313 ft/min
(400 m/min)
Rate-of-Climb


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


2 x 7.92mm LMG 08/15 machine guns synchronized to fire through the spinning propeller blades.


0
Hardpoints


D.I - Base Series Designation; three prototypes completed.
Dr.I - Triplane variant of 1917 based on the D.I design.


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