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Triplane Fighter Prototype Aircraft

Imperial Germany | 1917

"A single, poorly-performing prototype was all that was realized of the AEG Dr.I triplane fighter project during World War 1."

Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the AEG Dr.I Triplane Fighter Prototype Aircraft.
1 x Daimler D.IIIa 6-cylinder water-cooled inline piston engine developing 170 horsepower and driving a two-bladed propeller at the nose.
106 mph
170 kph | 92 kts
Max Speed
15,092 ft
4,600 m | 3 miles
Service Ceiling
286 miles
460 km | 248 nm
Operational Range
1,300 ft/min
396 m/min
The nose-to-tail, wingtip-to-wingtip physical qualities of the AEG Dr.I Triplane Fighter Prototype Aircraft.
20.0 ft
6.10 m
O/A Length
27.9 ft
(8.50 m)
O/A Width
8.7 ft
(2.65 m)
O/A Height
1,510 lb
(685 kg)
Empty Weight
2,072 lb
(940 kg)
Available supported armament and special-mission equipment featured in the design of the AEG Dr.I Triplane Fighter Prototype Aircraft .
2 x 7.92mm LMG 08/15 machine guns synchronized to fire through the spinning propeller blades.
Notable series variants as part of the AEG Dr.I family line.
Dr.I - Base Series Designation; single prototype completed.

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.

The end of the D.I biplane fighter for AEG did not mark the end of work on the series. The design was evolved into a triplane form as the Dr.I. The triplane made its mark through several notable designs put forth by the Allies and the Germans and advantages included maximized control due to the increase in lift and drag. Such fighters held a short-lived mastery of the skies for designs ultimately reverted back to biplane types. Nevertheless, just about every major aircraft firm attempted a three-winged (or more) design before the end of the war.

Development of the Dr.I originated from a review of a captured British Sopwith Triplane fighter during July of 1917. This possessed the Germans to develop something of equal capability lest they be outdone in the air by their long-time enemy. In October of 1917, AEG attempted just that and took their ultimately-abandoned D.I biplane and added a third wing member between the existing upper and lower sections. The aircraft retained the fuselage, tail unit and armament suite (2 x 7.92mm machine guns) of the D.I as well as the wheeled tail-dragger undercarriage. Power was derived from a Daimler D.IIIa 6-cylinder water-cooled inline piston engine of 170 horsepower.

Despite the third wing element, the Dr.I showcased poor handling and the added drag reduced performance of an already poor-performing fighter (maximum speed was 106 miles per hour). As quickly as the Dr.I appeared, it was abandoned as no interest in the type had formed.

The war would progress without it.

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Global customers who have evaluated and/or operated the AEG Dr.I. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 1 Units

Contractor(s): Allgemeine Elektricitats-Gesellschaft AG (AEG) - Imperial Germany
National flag of the German Empire

[ German Empire (cancelled) ]
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Image of the AEG Dr.I
Image from the Public Domain.

Going Further...
The AEG Dr.I Triplane Fighter Prototype Aircraft appears in the following collections:
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