Hansa-Brandenburg D.I

D.I

Role	Fighter Type of aircraft
Manufacturer	Hansa-Brandenburg
Designer	Ernst Heinkel
First flight	1916
Introduction	Autumn 1916
Primary users	Austria-Hungary Austria
Number built	122
Variants	Hansa-Brandenburg KDW Phönix D.I

The Hansa-Brandenburg D.I, also known as the KD (Kampf Doppeldecker) was a German fighter aircraft of World War I. Despite poor handling characteristics it was put into service by Austria-Hungary, where some aircraft served until the end of the war.

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Development and design

Ernst Heinkel chief designer of the Hansa und Brandenburgische Flugzeug-Werke developed the KD in 1916 to meet the requirements of the Austro-Hungarian Air Force (Kaiserliche und Königliche Luftfahrtruppen or K.u.K. Luftfahrtruppen). It was a single seat, single engined biplane, of wooden construction, with plywood fuselage skinning and fabric wing skins. The wings featured an unusual "Star-Strutter" arrangement of interplane struts, where four Vee struts joined in the centre of the wing bay to result in a "star" arrangement. The interplane struts themselves were steel tubes.^[1]

The KD had a deep fuselage, which gave a poor forward view for the pilot and tended to blanket the small rudder, giving poor lateral stability and making recovery from spins extremely difficult.^[2] Armament was a single Schwarzlose machine gun, which owing to difficulties in synchronising the Schwarzlose, was fitted in a fairing on the upper wing, firing over the propeller.^[3]

Despite these handling problems, the aircraft was ordered by Austro-Hungary as the D.I. A total of 122 D.Is were built, with 50 built by Hansa-Brandenburg in Germany - powered by 110 kW (150 hp) Austro-Daimler engines - while a further 72 were built under license by Phönix in Vienna, powered by 138 kW (185 hp) Austro-Daimler engines. While it was intended that the D.I also be built by Ufag, none were delivered.^[4] The KD also formed the basis for the Hansa-Brandenburg KDW floatplane fighter.

Operational history

The D.I entered service in autumn 1916. Its unusual arrangement of interplane bracing gave rise to the nickname "Spider",^[5] while its poor handling gave rise to the less complementary nickname "the Coffin".^[6] The D.I was the standard fighter aircraft of the Luftfahrtruppen until mid 1917, being used by several Austro-Hungarian air aces such as Godwin Brumowski and Frank Linke-Crawford.^[5] Some Phönix built D.Is remained in use until the end of the war, being used briefly by the armed forces of The Republic of German Austria (Republik Deutschösterreich), where they were used to fight Yugoslav attacks on Klagenfurt in Carinthia.^[1]^[7]

Operators

Austria-Hungary

Austria

Republic of German Austria

Specifications (D.I)

Data from The Complete Book of Fighters^[1]

General characteristics

Crew: 1
Length: 6.35 m (20 ft 10 in)
Wingspan: 8.5 m (27 ft 11 in)
Height: 2.79 m (9 ft 2 in) ^[8]
Wing area: 23.95 m² (257.8 sq ft)
Empty weight: 672 kg (1,482 lb)
Gross weight: 920 kg (2,028 lb)
Powerplant: 1 × Austro-Daimler 185hp 6-cylinder water-cooled in-line piston engine, 138 kW (185 hp)
Propellers: 2-bladed wooden fixed-pitch propeller

Performance

Maximum speed: 187 km/h (116 mph, 101 kn)
Endurance: 2 hours 30 minutes
Service ceiling: 5,000 m (16,000 ft) ^[8]
Time to altitude: 1,000 m (3,300 ft) in 3 minutes.

Armament

1 × 8 mm (.315 in) Schwarzlose machine gun

References

Notes

^ ^a ^b ^c Green and Swanborough 1994, p.83.
^ Gray and Thetford 1962, p.64.
^ Williams and Gustin 2003, p.62
^ Silen, Art. IPMS Book Review: Albatros Productions, Ltd Windsock Datafile #118 Hansa Brandenburg D.1^{[permanent dead link]} IPMS USA. Retrieved 2 March 2008
^ ^a ^b Hansa-Brandenburg D.I - The Aerodrome - Aces and Aircraft of World War I Retrieved 2 March 2008
^ Angelucci 1981, p.54.
^ Hooton 1994, p.25-26
^ ^a ^b Angelucci 1981, p. 43

Bibliography

Angelucci, Enzo (ed.). World Encyclopedia of Military Aircraft. London: Jane's, 1981. ISBN 0-7106-0148-4.
Gray, Peter and Thetford, Owen. German Aircraft of the First World War. London: Putnam, 1962.
Green, William and Swanborough, Gordon. The Complete Book of Fighters. New York: Smithmark, 1994. ISBN 0-8317-3939-8.
Hooton, E.R. Phoenix Triumphant: The Rise and Rise of the Luftwaffe.London: Arms & Armour Press, 1994. ISBN 1-85409-181-6.
Meindl, Karl; Schroeder, Walter (1997). Brandenburg D.I. Great War Aircraft in Profile 2. Flying Machines Press. ISBN 1891268015.
Williams, Anthony G. and Gustin, Emmanuel. Flying Guns World War I. Ramsbury, Wiltshire: Airlife, 2003. ISBN 1-84037-396-2.

External links

Wikimedia Commons has media related to Hansa-Brandenburg D.I.

v t e Hansa-Brandenburg aircraft
Austro-Hungarian military designations	B.I C.I C.II D.I G.I
Company designations	CC D FB FD GDW GNW GW KD K KDD KDW L.16 LDD NW W W.11 W.12 W.13 W.16 W.17 W.18 W.19 W.20 W.23 W.25 W.27 W.29 W.32 W.33 W.34

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

This page was last edited on 9 January 2024, at 13:17

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