Udet U 11 Kondor

The Udet U 11 Kondor was a German four-engined airliner designed and built by Udet Flugzeugbau, only one was built.[1][2]

U 11 Kondor
Role Eight-seat airliner
National origin Germany
Manufacturer Udet Flugzeugbau
First flight 19 January 1926
Primary user Deutsche Luft Hansa
Number built 1

Design and development

The U 11 Kondor was an open-cockpit, metal-fuselage, wooden high-wing monoplane powered by four 100 hp (75 kW) Siemens-Halske Sh 12 piston engines in shaft-driven pusher configuration.[1] It had a crew of three and room for eight passengers with a dangerously close clearance between the pusher propellers and rear passenger door, which caused one fatality.[1] The aircraft was tested by Harry Rother near Munich, finding a tail-heavy condition which required addition of larger control surfaces. The only U 11 was first flown on 19 January 1926 and was refused by Deutsche Luft-Reederei then purchased by Deutsche Luft Hansa, crashing on its delivery flight. The cost to develop and produce the prototype was a factor in the collapse of the company, which was then taken over by Bayerische Flugzeugwerke.[1]

Specifications (U 11)
Udet U 11 Kondor 3-view drawing from Les Ailes February 11, 1926

General characteristics

  • Crew: 2
  • Capacity: 8
  • Length: 16 m (52 ft 6 in)
  • Upper wingspan: 22 m (72 ft 2 in)
  • Height: 4 m (13 ft 1 in)
  • Wing area: 70 m2 (750 sq ft)
  • Empty weight: 3,370 kg (7,430 lb)
  • Gross weight: 4,572 kg (10,080 lb)
  • Fuel capacity: 300 kg
  • Powerplant: 4 × Siemens-Halske Sh 12 9-cyl. air-cooled radial piston engines, 75 kW (100 hp) each

Performance

  • Maximum speed: 152 km/h (94 mph, 82 kn)
  • Cruise speed: 135 km/h (84 mph, 73 kn)
  • Service ceiling: 3,190 m (10,470 ft)

See also

Aircraft of comparable role, configuration, and era

References

Notes
  1. Orbis 1985, p. 3035
  2. Jean-Denis G.G. Lepage. Aircraft of the Luftwaffe, 1935-1945: An Illustrated Guide. p. 28.

Bibliography
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