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Lohner B.I
Role Reconnaissance aircraft
National origin Austria-Hungary
Manufacturer Lohner
Primary user KuKLFT

The Lohner B.I was a military reconnaissance aircraft produced in Austria-Hungary during World War I.[1] As Lohner strove to perfect the design, a variety of increasingly powerful engines were fitted, reflected in a range of military designations from B.II through to B.VI until the definitive B.VII was finally produced. This last version was also produced in an armed variant, designated the C.I.[2]

The B.I design originated before the war[3] and was initially known as the Pfielflieger ("Arrow-flier") on account of its sharply swept-back wings,[4] giving it an arrow-shaped planform. Apart from this feature, it was an otherwise conventional biplane design with two-bay, staggered wings of unequal span. The pilot and observer (or instructor) sat in tandem in an open cockpit. The first batch was produced for the Luftschiffabteilung ("Airship Section") of the Austro-Hungarian army in late 1912, after a national fundraising campaign conducted by the Österreichischer Aero-Club ("Austrian Aero-Club").[4] Known at this time as the Type B, the army took delivery of 28 aircraft before asking Lohner to develop a version better suited for mountain-flying, leading to the B.II which replaced the B.I in production in mid 1914. However, during the course of 1915, production was briefly revived (along with the then-surpassed B.II) under licence at Flugzeugwerk Fischamend for use as trainers.

Operators

 Austria-Hungary

Specifications

Data from Grosz 2002

General characteristics

  • Crew: Two, pilot and observer
  • Length: 8.50 m (27 ft 11 in)
  • Wingspan: 13.40 m (44 ft 0 in)
  • Height: 3.00 m (9 ft 10 in)
  • Wing area: 37.5 m2 (403 ft2)
  • Empty weight: 630 kg (1,390 lb)
  • Gross weight: 970 kg (2,130 lb)
  • Powerplant: 1 × Austro-Daimler, 70 kW (90 hp)

Performance

  • Maximum speed: 115 km/h (72 mph)
  • Rate of climb: 1.4 m/s (270 ft/min)

Notes

  1. Taylor 1989, 610
  2. Taylor 1989, 611
  3. Gunston 1993, 188
  4. 4.0 4.1 Murphy 2005, 105

References

  • Grosz, Peter M. (2002). Austro-Hungarian Army Aircraft of World War One. Colorado: Flying Machine Press. 
  • Gunston, Bill (1993). World Encyclopedia of Aircraft Manufacturers. Annapolis: Naval Institute Press. 
  • Murphy, Justin D. (2005). Military Aircraft: Origins to 1918. Santa Barbara: ABC-Clio. 
  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. 

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