History

The end of AEG's D.I biplane does not mean the end of work on the series. The design was named Dr. I further developed into a three-tiered form. This triplane made its mark on several prominent Allied and German designs, with advantages including maximum control due to increased lift and drag. This fighter dominated the skies for a short time as the design eventually reverted to the biplane type.

Still, nearly every major aircraft company experimented with three-blade (or more) designs by the end of the war.

Development of Ph.D. My origins are a July 1917 review of a captured British Sopwith triplane. This prompted the Germans to develop something equally capable, lest they be defeated in the air by their longtime foe. AEG tried this in October 1917, and they eventually abandoned the D.I biplane and added a third wing element between the existing upper and lower sections.

The aircraft retains the D.I's fuselage, tail and armament (2 x 7.92mm machine guns), as well as wheeled tail-tow landing gear. Power comes from a 170 hp water-cooled Daimler D. IIIa 6-cylinder in-line piston engine.

Despite the third wing element, Dr. I had poor handling and added drag reduction on an already underperforming fighter (top speed of 106 mph). Dr. I showed up so soon, he was dumped because there was no interest in this person.

Without them, the war would go on.

Dr. AEG. I spec

Basic

Year:
1917
Status:
Cancel
Staff:
1

Production

[1 unit]:
General Electric Company (AEG) - German Empire

Roles

- Fighter

- X-Plane / Development

Dimensions

Length:

20.01 ft (6.1 m)

Width:

8.5m

Height:

2.65m

Weight

Curb Weight:

685 kg

MTOW:

940 kg

(Difference: +562lb)

Performance

1 x Daimler D.IIIa 6-cylinder water-cooled inline piston engine producing 170 hp and driving a two-bladed propeller in the nose.

Performance

Maximum Speed:

170 km/h (92 knots)

Service Limit:

15,092 ft (4,600 m; 2.86 mi)

Maximum range:

286 miles (460 km; 248 nmi)

Rate of climb:

396 m/min

Armor

2 x 7.92mm LMG 08/15 machine guns fired synchronously through rotating propeller blades.

Changes

Doctor I - Name of the basic series; single prototype completed.

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