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Halberstadt D.I


Single-Seat Biplane Fighter Prototype


Imperial Germany | 1916



"The Halberstadt D.I fighter prototype failed to impress German authorities and this limited the design to just two prototypes."



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.
Halberstadter Flugzeugwerke (Halberstadt) of German made its first foray into fighter aircraft design with the "D.I" of 1915. The design was a dimensionally smaller version of the company's B.II product and featured many qualities of combat aircraft of the period - an over-under biplane wing structure, fixed undercarriage and open-air cockpit. The D.I initially failed to impress German authorities and the line ended at just two prototypes completed - but this work served to produce the refined D.II model (detailed elsewhere on this site).

The D.I differed from the earlier B.II in that it held smaller-area wings and these appendages were staggered. As a combat aircraft, it was also finalized with a single 7.92mm MG08 machine gun in a fixed, forward-firing mounting. The engine was fitted to the nose in the usual way and drove a two-bladed propeller unit. The radiator element protruded noticeably out of the nose and restricted forward vision some. The fuselage showcased slab sides and the tail was of conventional arrangement.

The first of two prototypes emerged for testing with an Argus As II engine of 120 horsepower and a first-flight was recorded in late-Autumn of 1915. The second followed with a Mercedes D.I of 100 horsepower. Some promise was shown in the latter offering to the point that a twelve-strong order was placed in March of 1916. However, during the evaluation period, the aircraft was found lacking in certain qualities which, when refined, led to the developed "D.II" detailed elsewhere on this site.

From the recorded work, the D.I showcased a wingspan of 28.9 feet, an empty weight of 1,210lb and a MTOW of 1,630lb. Much of its performance figures are unknown.

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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 Halberstadt D.I Single-Seat Biplane Fighter Prototype.
Second Prototype: 1 x Mercedes D.I engine developing 100 horsepower and driving a two-bladed propeller at the nose.
Propulsion
93 mph
150 kph | 81 kts
Max Speed
13,123 ft
4,000 m | 2 miles
Service Ceiling
728 ft/min
222 m/min
Rate-of-Climb
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Halberstadt D.I Single-Seat Biplane Fighter Prototype.
1
(MANNED)
Crew
28.9 ft
(8.80 m)
O/A Width
1,213 lb
(550 kg)
Empty Weight
1,653 lb
(750 kg)
MTOW
Armament
Available supported armament and special-mission equipment featured in the design of the Halberstadt D.I Single-Seat Biplane Fighter Prototype .
1 x 7.92mm MG08 machine gun (starboard side fuselage mounting).
Variants
Notable series variants as part of the Halberstadt D.I family line.
D.I - Series Designation; two prototypes completed.
D.I V1 - First prototype with Argus As II engine of 120 horsepower.
D.I V2 - Second prototype with Mercedes D.I engine of 100 horsepower.
Operators
Global customers who have evaluated and/or operated the Halberstadt D.I. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 2 Units

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

[ German Empire ]
Relative Max Speed
Hi: 100mph
Lo: 50mph
Aircraft Max Listed Speed (93mph).

Graph Average of 75 MPH.
Era Crossover
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Max Alt Visualization
Small airplane graphic
Production Comparison
2
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
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1 / 1
Image of the Halberstadt 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
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 Halberstadt D.I Single-Seat Biplane Fighter Prototype appears in the following collections:
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