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Fokker Dr.I (Dreidecker)


Triplane Fighter Aircraft [ 1917 ]



With a three-wing arrangement inducing substantial drag, the Fokker Dr.I was slower than her contemporaries but made up for this in maneuverability and rate-of-climb against fighters of the period.



Authored By: Staff Writer | Last Edited: 07/30/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

GO TO SPECIFICATIONS [+]
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The Fokker Dr.I ("Dr" for "Dreidecker" meaning "triplane") series is most closely associated with Manfred von Richthofen (aka "the Red Baron") as the triplane aircraft was his chosen mount in the final months of his life, accounting for his last 20 kills. Designed to match the Sopwith Triplane and appearing by October of 1917, the Dr.I was a capable aircraft made more so by the pilots that flew her than the unique three-wing design. In the end, the system was limited in production quantity and saw a career spanning just the final year of the conflict, which by 1918, was being used as a defensive system over Germany.

Obviously the most identifying feature of the type was the three wing design made popular by the Sopwith Triplane - and proved itself a worthy design overall. Though inducing drag (which in turn caused a decrease in overall speed) the arrangement made for a highly maneuverable aircraft, quick to turn, and offered up a tremendous rate of climb while delivering in a steady dive. Overall the design was typical, featuring the pilot sitting in an open cockpit seated just behind the large wing structures. The undercarriage was fixed and dominated by two large wheels with a tail skid at the rear. Armament consisted of twin Spandau machine guns of 7.92mm caliber firing forward through the synchronized propeller system. The Dr.I was also one of the last aircraft types to feature a rotary piston engine in the Oberursel Ur.II 9-cylinder series.

The initial 100 Dr.I's on order were delivered to Richthofen's fighter squadron in October of 1917 after combat evaluation. By the end of that month, it soon became apparent that there was trouble in the assembly of the wings to the point that some Fokker Dr.I's had broken up in mid-flight resulting in several fatal crashes. This, of course, forced the entire type to be grounded upon further review by an authorized crash commission. The resulting verdict was found to be in the construction of the wings. With adjustments made along the production lines at Fokker, the Dr.I was given the green light back into the air by end of November with all Dr.I wings checked and repaired/replaced if necessary. This setback no doubt attributed to the low production numbers overall, numbering just some 320 examples by the time the lines closed in May of 1918. By then, the fine machine was highly outclassed by her rivals and gradually disappeared into aviation history.©MilitaryFactory.com
Note: The above text is EXCLUSIVE to the site www.MilitaryFactory.com. It is the product of many hours of research and work made possible with the help of contributors, veterans, insiders, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at MilitaryFactory AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.
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Specifications



Service Year
1917

Origin
Imperial Germany national flag graphic
Imperial Germany

Status
RETIRED
Not in Service.
Crew
1

Production
320
UNITS


Fokker Flugzeug-Werke GmbH - Germany
(View other Aviaton-Related Manufacturers)
National flag of the German Empire German Empire
(OPERATORS list includes past, present, and future operators when applicable)
Air-to-Air Combat, Fighter
General ability to actively engage other aircraft of similar form and function, typically through guns, missiles, and/or aerial rockets.


Length
18.9 ft
(5.77 m)
Width/Span
23.6 ft
(7.20 m)
Height
9.7 ft
(2.95 m)
Empty Wgt
895 lb
(406 kg)
MTOW
1,290 lb
(585 kg)
Wgt Diff
+395 lb
(+179 kg)
(Showcased structural values pertain to the base Fokker Dr.I (Dreidecker) production variant)
Installed: 1 x Oberursel U.R. II air-cooled rotary engine developing 110 horsepower driving a two-bladed wooden propeller unit at the nose.
Max Speed
103 mph
(165 kph | 89 kts)
Ceiling
19,997 ft
(6,095 m | 4 mi)
Range
186 mi
(300 km | 556 nm)
Rate-of-Climb
1,090 ft/min
(332 m/min)


♦ 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


(Showcased performance specifications pertain to the base Fokker Dr.I (Dreidecker) production variant. Performance specifications showcased above are subject to environmental factors as well as aircraft configuration. Estimates are made when Real Data not available. Compare this aircraft entry against any other in our database or View aircraft by powerplant type)
STANDARD:
2 x 7.92mm Spandau LMG 08/15 machine guns synchronized to fire through the spinning propeller blades.


Supported Types


Graphical image of an aircraft medium machine gun


(Not all ordnance types may be represented in the showcase above)
Hardpoint Mountings: 0


V.3 - Prototype Model Designation
V.4 - Prototype Production Model
V.5 - Prototype Model fitted with Goebel Goe.III series engine.
V.6 - Prototype Model fitted with Mercedes D.II series engine.
V.7 - Prototype Model fitted with Siemens-Halske Sh.III series engine.
V.10 - Prototype Model fitted with Oberusel Ur.III series engine.
Dr.I - Production Series Designation


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Images Gallery



1 / 3
Image of the Fokker Dr.I (Dreidecker)
Image from the National Museum of the United States Air Force, Dayton, OH.
2 / 3
Image of the Fokker Dr.I (Dreidecker)
3 / 3
Image of the Fokker Dr.I (Dreidecker)

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