Junkers D.I

You can help expand this article with text translated from the corresponding article in German. (June 2019) Click [show] for important translation instructions.

View a machine-translated version of the German article.
Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia.
Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article.
You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing German Wikipedia article at [[:de:Junkers D.I]]; see its history for attribution.
You may also add the template {{Translated|de|Junkers D.I}} to the talk page.
For more guidance, see Wikipedia:Translation.

J 7 and J 9 (D.I)

Junkers D.I survivor at Musée de l'Air et de l'Espace
Role	Fighter Type of aircraft
National origin	Germany
Manufacturer	Junkers
Designer	Hugo Junkers
First flight	17 September 1917
Introduction	1918
Status	retired
Primary user	Imperial German Navy
Produced	1918
Number built	41

The Junkers D.I (factory designation J 9) was a monoplane fighter aircraft produced in Germany late in World War I, significant for becoming the first all-metal fighter to enter service. The prototype, a private venture by Junkers named the J 7, first flew on 17 September 1917, going through nearly a half-dozen detail changes in its design during its tests.^[1] When it was demonstrated to the Idflieg early the following year it proved impressive enough to result in an order for three additional aircraft for trials. The changes made by Junkers were significant enough for the firm to rename the next example the J 9, which was supplied to the Idflieg instead of the three J 7s ordered.

During tests, the J 9 lacked the manoeuvrability necessary for a front-line fighter but was judged fit for a naval fighter and a batch of 12 was ordered. These were supplied to a naval unit by September 1918, which then moved to the Eastern Front after the Armistice.

Variants

J 7: company designation for early prototype variants, one built (three completed as J 9s).
J 9: company designation for late prototypes and production models
J 9/II: company designation for lengthened fuselage version
D.I: Idflieg designation

Surviving aircraft

One example survives and is on display in the Musée de l'Air et de l'Espace, at the Paris–Le Bourget Airport, 11km north of Paris, France. Several replicas have been built, including one on display at the Militärhistorisches Museum Flugplatz Berlin-Gatow.

Specifications

Data from Holmes, 2005. p 32

General characteristics

Crew: One pilot
Length: 7.25 m (23 ft 9.4 in)
Wingspan: 9.00 m (29 ft 6.3 in)
Height: 2.60 m (8 ft 6 in)
Empty weight: 654 kg (1,438 lb)
Gross weight: 834 kg (1,834 lb)
Powerplant: 1 × BMW IIIa water-cooled 6-cylinder inline , 138 kW (185 hp)

Performance

Maximum speed: 176 km/h (109 mph, 95 kn) ^[2]
Endurance: 1.5 hours^[3]
Service ceiling: 6,000 m (19,700 ft)
Rate of climb: 3.5 m/s (683 ft/min) ^[3]

Armament

2 × fixed, forward-firing Spandau machine guns

References

Citations

^ Grosz and Terry 1984, p.67.
^ Grosz, 1992, p.35
^ ^a ^b Kay, 2004, p.28

Bibliography

Grosz, Peter & Terry, Gerard (1984). "The Way to the World's First All-Metal Fighter". Air Enthusiast. Vol. 25, no. Aug-Nov 1984. pp. 60–76. ISSN 0143-5450.
Grosz, P.M. (1992). Junkers D.I. Windsock Datafile 33. Hertfordshire, UK: Albatros Publications. ISBN 978-0948414-41-1.
Holmes, Tony (2005). Jane's Vintage Aircraft Recognition Guide. London: Harper Collins. ISBN 0007192924.
Kay, Anthony L. (2004). Junkers Aircraft and Engines 1913-1945. London: Putnam. ISBN 0-85177-985-9.
Owers, Colin A. (2018). Junkers Aircraft of WWI: Volume 2: Junkers J.5–J.11: A Centennial Perspective on Great War Airplanes. Great War Aviation Centennial Series. Vol. 31. n.p.: Aeronaut Books. ISBN 978-1-935881-66-7.

External links

Wikimedia Commons has media related to Junkers D.I.

Fokker D.VII, Halberstadt CL.IV and Junkers D.I Archived 2012-03-01 at the Wayback Machine
Junkers D.I at Musée de l'Air et de l'Espace, Le Bourget

Junkers aircraft

Company designations

Company EF designations
(experimental aircraft)

Idflieg designations

RLM designations

Idflieg D and DJ-class aircraft designations

D- class

AEG	D.I D.II D.III
Albatros	D.I D.II D.III D.IV D.V D.VI D.VII D.VIII D.IX D.X D.XI D.XII
Aviatik	(D.I skipped) D.II D.III D.IV D.V D.VI D.VII
Daimler	D.I D.II
DFW	D.I D.II
Euler	D.I D.II
Fokker	D.I D.II D.III D.IV D.V D.VI D.VII D.VIII
Friedrichshafen	D.I D.II D.III
Halberstadt	D.I D.II D.III D.IV D.V
Junkers	D.I
Kondor	D.I
LFG/Roland	D.I D.II D.III D.IV D.V D.VI D.VII D.VIII D.IX D.X D.XI D.XII D.XIII D.XIV D.XV D.XVI D.XVII
LVG	D.I D.II D.III D.IV D.V D.VI
Märkische	D.I
Naglo	D.I D.II
Pfalz	D.I D.II D.III D.IV D.V D.VI D.VII D.VIII D.IX D.X D.XI D.XII D.XIII D.XIV D.XV
Rumpler	D.I
Schütte-Lanz	D.I D.II D.III D.IV D.V D.VI D.VII
Siemens-Schuckert	D.I D.II D.III D.IV D.V D.VI
Zeppelin-Lindau	D.I

DJ- class

AEG	DJ.I

v t e World War I aircraft of the Central Powers
Fighters	AEG D.I AEG Dr.I Albatros D.I Albatros D.II Albatros D.III Albatros D.V Aviatik D.I Aviatik C.VI Daimler L.6 Euler D.I Euler D.II Fokker D.I Fokker D.II Fokker D.III Fokker D.IV Fokker D.V Fokker D.VI Fokker D.VII Fokker D.VIII Fokker Dr.I Fokker E.I Fokker E.II Fokker E.III Fokker E.IV Fokker E.V Halberstadt D.II Hannover CL.II Hannover CL.III Hannover CL.IV Hannover CL.V Hansa-Brandenburg W.12 Hansa-Brandenburg W.29 Junkers D.I Kondor D.6 Kondor E.III Naglo D.II Pfalz D.III Pfalz D.XII Pfalz Dr.I Pfalz E.I Pfalz E.II Phönix D.I LFG Roland D.II LFG Roland D.VI Siemens-Schuckert D.I Siemens-Schuckert D.II Siemens-Schuckert D.III Siemens-Schuckert D.IV Zeppelin-Lindau D.I
Bombers and ground attack	AEG DJ.I AEG G.I AEG G.II AEG G.III AEG G.IV AEG G.V AEG J.I AEG J.II AEG R.I Friedrichshafen G.II Friedrichshafen G.III Gotha G.I Gotha G.II Gotha G.III Gotha G.IV Gotha G.V Gotha GL.VII Gotha G.IX Hannover CL.II Junkers CL.I Junkers J.I Rumpler G.I Rumpler G.II Rumpler G.III Siemens-Schuckert L.I Zeppelin-Lindau Rs.II Zeppelin-Lindau Rs.III Zeppelin-Lindau Rs.IV Zeppelin-Staaken R.VI
Reconnaissance	AEG B.I AEG B.II AEG B.III AEG C.I AEG C.II AEG C.III AEG C.IV AEG C.V AEG C.VI AEG C.VII AEG C.VIII AGO C.I AGO C.II AGO C.III AGO C.IV AGO C.VII AGO C.VIII Albatros B.I Albatros B.II Albatros C.I Albatros C.III Albatros C.V Albatros C.VII Albatros C.IX Albatros C.X Albatros C.XII Aviatik B.I Aviatik B.II Aviatik C.I Aviatik C.VI DFW C.V LFG Roland C.II LVG B.I LVG C.II Rumpler C.I Rumpler C.IV Rumpler Taube
Trainers	Euler D.I
Prototypes	Albatros C.II Fokker V.1 Fokker V.2 Junkers J 1 Junkers J 2 Zeppelin-Lindau Rs.I