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Hansa-Brandenburg B.I

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B.I
Hansa-Brandenburg B.I, Budapest (2).jpg
General information
TypeReconnaissance aircraft
National originGermany
Manufacturer Hansa-Brandenburg
Designer
Primary user KuKLFT
Number built27
History
First flight1914

The Hansa-Brandenburg B.I was an unarmed military trainer and reconnaissance biplane of World War I, flown by the Austro-Hungarian Air Service. Early models were known internally to the Hansa-Brandenburg firm as the type D, while later models with a more powerful engine were designated FD. This aircraft was one of the earliest designs of Ernst Heinkel, who was working for Hansa-Brandenburg at the time. It was an entirely conventional two-bay biplane with staggered wings of unequal span. The pilot and observer sat in tandem in a long open cockpit.

Contents

The aircraft was produced under license by Aero, both during the war and afterwards (when it became known as the Aero Ae 01 ), and also by Letov, as the Š10. [1] Experience gained with this design would provide Aero with the basis for a number of derivative civil and military designs throughout the 1920s.

The design formed the basis for the C.I and C.II armed reconnaissance types.

Development and design

In April–May 1914, the aircraft designer Ernst Heinkel joined the newly established Brandenburgische Flugzeugwerke after leaving Albatros Flugzeugwerke, and shortly afterwards, Brandenburgische Flugzeugwerke merged with Hansa-Flugzeugwerke to become Hansa-Brandenburg. [2] Heinkel's first design for Hansa-Brandenburg was the Type D, a single-engined reconnaissance aircraft. It was a two-bay biplane with wood and fabric wings and tail surfaces, and a fuselage of steel tube structure covered with plywood. It was powered by a 100–110 hp (75–82 kW) Benz Bz.II engine. [3] Twelve Type Ds were built by Brandenburg for the German Army air arm in 1914. [3] [4]

The Type FD was an improved derivative of the D, with revised tail surfaces and two- or three-bay wings with inward sloping wing struts. [5] [6] It was powered by a Benz B.II engine, [5] [6] or a 100 hp (75 kW) Mercedes engine. [5] [7] Eight or nine were built in 1914, and given the German designation Brandenburg B.I. [5]

The Type LDD was a further improved aircraft, differing from the FD by having a wooden engine mount rather than the steel mounts by the earlier versions, which saved weight. [8] [9] The type was built by Brandenburg for the Austro-Hungarian Army Air Arm (designated as the Brandenburg B.I by the Austrians), [8] [9] and under license by the Austro-Hungarian Army's aircraft works (Flugzeugwerke) at Fischamend, in a series of gradually improved versions, with various powerplants, serving initially as an unarmed reconnaissance aircraft and later as a trainer. [8] [10] Brandenburg built 102 LDDs, [8] [9] while over 400 were built at Fischamend, with production continuing until shortly after the end of the First World War. [11]

Variants

D
Initial version with Benz Bz.II engine. Twelve built. [3]
FD
Revised version with modified tail and Benz Bz.II or Mercedes engine. Designated Brandenburg B.I by Germany. Eight or nine built. [5]
LDD
Improved version with lighter structure. Large scale production for Austria-Hungary. Designated Brandenburg B.I by Austria-Hungary. [8] [9]
Brandenburg B.I Series 05.1
Production version of LDD built by Brandenburg and powered by 100 hp (75 kW) Mercedes engine. 102 built. [12]
Brandenburg B.I(Fd) Series 06.5
Conversion of Series 05.1 aircraft to trainers by Flugzeugwerke Fischamend. 49 converted. [13]
Brandenburg B.I(Fd) Series 75
Fischamend-built single-control trainer, powered by 100 hp Mercedes engine. 28 built. [11]
Brandenburg B.I(Fd) Series 76
Fischamend-built, 100 hp Mercedes, single or dual controls. 99 built. [11]
Brandenburg B.I(Fd) Series 176
Fischamend-built, 100 hp Mercedes, single controls. 99 built. [11]
Brandenburg B.I(Fd) Series 276
Fischamend-built, 100 hp Mercedes. 24 built. [11]
Brandenburg B.I(Fd) Series 77
Fischamend-built, 100 hp Daimler, single controls. 41 built. [11]
Brandenburg B.I(Fd) Series 78
Fischamend-built, 120 hp (89 kW) Daimler, dual controls. 51 built. [11]
Brandenburg B.I(Fd) Series 278
Fischamend-built, Daimler engine. 3 built late 1918. [11]
Brandenburg B.I(Fd) Series 79
Fischamend-built, 145 hp (108 kW) Hiero 6 engine. 21 built. [11]
Brandenburg B.I(Fd) Series 279
Fischamend-built, Hiero engine. 49 built. [11]

Operators

Flag of Austria-Hungary (1867-1918).svg Austria-Hungary
Flag of Poland.svg  Poland
Flag of the Czech Republic.svg  Czechoslovakia
Flag of Hungary (1915-1918, 1919-1946).svg Kingdom of Hungary
Flag of Yugoslavia (1918-1943).svg Kingdom of Yugoslavia

Surviving aircraft

Only a single Hansa-Brandenburg B.I has survived World War One, it is located in the Budapest Aviation Museum in Hungary.

Specifications (FD)

Data from[ citation needed ]

General characteristics

Performance

See also

Related development

References

  1. 1 2 Krzysztof Chołoniewski, Wiesław Bączkowski (in Polish), Samoloty wojskowe obcych konstrukcji 1918-1939 [Military aircraft of foreign designs 1918-1939]. Warsaw, WKiŁ, 1987. ISBN   83-206-0566-0, p. 7
  2. ↑ Owers 2015, p. 4.
  3. 1 2 3 Owers 2015, p. 12.
  4. ↑ Gray & Thetford 1962, p. 303.
  5. 1 2 3 4 5 Owers 2015, p. 14.
  6. 1 2 Gray & Thetford 1962, p. 302.
  7. ↑ Grosz, Haddow & Schiemer 1993, p. 413.
  8. 1 2 3 4 5 Owers 2015, p. 16.
  9. 1 2 3 4 Grosz, Haddow & Schiemer 1993, p. 427.
  10. ↑ Grosz, Haddow & Schiemer 1993, pp. 312, 427–428.
  11. 1 2 3 4 5 6 7 8 9 10 Grosz, Haddow & Schiemer 1993, p. 312.
  12. ↑ Grosz, Haddow & Schiemer 1993, pp. 427–428.
  13. ↑ Grosz, Haddow & Schiemer 1993, p. 301.
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