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Horten H.VII

From Wikipedia, the free encyclopedia
Flying wing prototype
H.VII
Artist impression of the Horten H.VII in flight
General information
TypeFlying-wing fighter-trainer
National originGermany
ManufacturerPeschke
Designer
Number built2
History
First flightMay 1944
Developed fromHorten H.V

TheHorten H.VII was aflying wing fighter-trainer aircraft designed by the Horten brothers inNazi Germany duringWorld War II.

Development

[edit]

The H.VII was originally allocated theReichsluftfahrtministerium (RLM) designation8-226, but was later given the new RLM designation8-254, so it was known by inference asHorten Ho 226 orHorten Ho 254, though these designations were little used in practice.[1]

In 1942 the H.VII design began as a test-bed for the Schmitt-Arguspulse-jet engine but this project was cancelled in 1943 and the aircraft's role became that of a trainer. It was based on theHorten H.V but with more powerfulArgus As 10C engines.Walter Horten piloted its first flight in May 1944 and took part in many hours of a series of test flights, partly intended to quell concerns about thetailless aircraft's controllability in the case of an asymmetric power loss.[2]

Two prototypes were built and the H.VII V-3, nearing completion by the time that the allied advance reached the Peschke factory inMinden, would have been the first of twenty production aircraft. Two H.VIIs were destroyed in the advance and one taken to theUSSR.[2][3]

Specifications (H.VII)

[edit]

Data from Nurflügel[2] except where noted

General characteristics

  • Crew: 2
  • Wingspan: 16 m (52 ft 6 in) ; 40° leading edge sweep
  • Wing area: 44 m2 (470 sq ft)
  • Aspect ratio: 5.8
  • Empty weight: 1,550 kg (3,417 lb)
  • Gross weight: 2,000 kg (4,409 lb)
  • Powerplant: 2 ×Argus As 10C air-cooled, invertedV8 piston engines in angledpusher configuration, 176 kW (236 hp) each
  • Propellers: 2-bladed Argus, driven via long, cowled drive-shafts above thetrailing edge of the inner wing.

Performance

  • Maximum speed: 350 km/h (220 mph, 190 kn)
  • Cruise speed: 300 km/h (190 mph, 160 kn)
  • Never exceed speed: 550 km/h (340 mph, 300 kn)
  • Service ceiling: 6,500 m (21,300 ft)[3]
  • Rate of climb: 7 m/s (1,400 ft/min) from sea level[3]
  • Wing loading: 45.5 kg/m2 (9.3 lb/sq ft)
  • Power/mass: 5.7 kg/kW (9.4 lb/hp)
  • Take-off: at 110 km/h (68 mph; 59 kn) after 250 m (820 ft) roll.[3]

References

[edit]
Wikimedia Commons has media related toHorten H.VII.
  1. ^Parsch, Andreas."German Military Aircraft Designations (1933-1945)".www.designation-systems.net. Retrieved29 January 2019.
  2. ^abcHorten, Reimar; Peter F. Selinger (1985).Nurflügel (in German) (1st ed.). Graz: H. Wieshaupt Verlag. pp. 123–128, 229.ISBN 978-3-900310-09-7.
  3. ^abcdK. G. Wilkinson (1945).R.A.E report FA269/1 - The Horten tailless aircraft. Farnborough: RAE.
Horten aircraft
1 to 100
101 to 200
201 to 300
301 to 349
Post-349 (non-sequential)
  • 1 Not assigned
  • 2 Unofficial/proposed
  • 3 Assigned, but not used before RLM was dissolved
  • 4 Assigned to captured aircraft
  • 5 Unconfirmed
  • 6 Propaganda/cover designation
  • 7 Assigned to multiple types

Note: Official RLM designations had the prefix "8-", but this was usually dropped and replaced with the manufacturer's prefix.

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