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AEG DJ.I


Armored Single-Seat Ground Attack Biplane Prototype


Imperial Germany | 1918



"The sole AEG DJ.I biplane prototype was under evaluation by the time World War 1 ended in November of 1918."



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.
Allgemeine Elektricitats-Gesellschaft AG (AEG) of the German Empire attempted an earlier aircraft design for the armored ground attack role as the AEG "PE" ("Panzer-Einsitzer"). While that triplane was shown to possess poor one-on-one fighter capabilities and was ultimately abandoned during development, the company persisted with the idea of an armored attacker. In September of 1918, it unveiled the DJ.I through a first-flight.

The DJ.I continued some of the form and function established by the PE but attempted to resolve issues by relying on a simplified biplane wing arrangement. The upper and lower members were joined by thick single "I-style" struts and cabling was minimized. Dural construction made up the wing's internal structure and fabric skinning covered them. Because of the low-altitude operation expected of such attacking types (and thus the inherent dangers from ground-based fire), the aircraft was finished with armoring (sheet aluminum skinning) protecting vital components: pilot, fuel stores, and engine.

The first of three prototypes carried the Benz Bz.IIIb engine of 195 horsepower while the third was issued the Maybach Mb IVa engine of 240 horsepower. In either case the engine was installed at the nose in the traditional fashion used to drive a four-bladed propeller. The pilot sat in an open-air cockpit just aft of the upper wing assembly with a commanding view over the aircraft.

Like many other mid-to-late-war biplane fighter types, the DJ.I was outfitted with a machine gun pairing synchronized to fire through the spinning propeller blades. This was made up of 2 x 7.92mm LMG 08/15 Spandau air-cooled machine gun weapons. The aircraft was designed to carry a modest bomb load (primarily anti-personnel in nature). In this way, the aircraft could strafe targets with machine gun fire and drop conventional ordnance on infantry positions. Additionally, the machine gun pairing could be turned against any aerial attacker attempting to down the DJ.I itself.

Performance included a maximum speed of 112 miles per hour and a rate-of-climb of 820 feet per minute.

Despite the progress made on this AEG attacker, the war had ended while the design was still under active evaluation so its potential was never realized. With the end of the conflict in November 1918 came the end of development on the DJ.I.

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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 AEG DJ.I Armored Single-Seat Ground Attack Biplane Prototype.
1 x Benz Bz.IIIb V8 water-cooled inline piston engine developing 194 horsepower OR 1 x Maybach Mb IVa engine of 240 horsepower driving a four-bladed propeller at the nose.
Propulsion
112 mph
180 kph | 97 kts
Max Speed
820 ft/min
250 m/min
Rate-of-Climb
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the AEG DJ.I Armored Single-Seat Ground Attack Biplane Prototype.
1
(MANNED)
Crew
22.0 ft
6.70 m
O/A Length
32.8 ft
(10.00 m)
O/A Width
9.8 ft
(3.00 m)
O/A Height
2,612 lb
(1,185 kg)
Empty Weight
3,020 lb
(1,370 kg)
MTOW
Armament
Available supported armament and special-mission equipment featured in the design of the AEG DJ.I Armored Single-Seat Ground Attack Biplane Prototype .
PROPOSED:
2 x 7.92mm KMG 08/15 Spandau machine guns synchronized to fire through the spinning propeller blades.

OPTIONAL:
4 x Anti-Personnel Drop Bombs
Variants
Notable series variants as part of the AEG DJ.I family line.
DJ.I - Base Series Designation; three prototypes completed.
Operators
Global customers who have evaluated and/or operated the AEG DJ.I. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 3 Units

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

[ German Empire (cancelled) ]
Relative Max Speed
Hi: 120mph
Lo: 60mph
Aircraft Max Listed Speed (112mph).

Graph Average of 90 MPH.
Era Crossover
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Production Comparison
3
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
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1 / 1
Image of the AEG DJ.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.
X-PLANE
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 AEG DJ.I Armored Single-Seat Ground Attack Biplane Prototype appears in the following collections:
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