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Siemens-Schuckert R.VIII

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Siemens-Schuckert R.VIII

Siemens-Schuckert R.VIII
Role Bomber
National origin Germany
Manufacturer Siemens-Schuckert (Siemens-Schuckert Werke G.m.b.H., Siemensstadt. Berlin)[1]
Number built 2 (one unfinished)[1]

The Siemens-Schuckert R.VIII was a bomber aircraft designed and built in Germany from 1916.[1]

Having cut their teeth with the Steffen R series, Siemens-Schuckert planned to produce a six engined Riesenflugzeug for the Military Air Service. In common with many of the other contemporary R projects the R.VIII had all six engines inside the fuselage, where they were tended by mechanics, driving two tractor and two pusher propellers, mounted between the mainplanes, via leather cone clutches combining gearboxes, shafts and bevel gearboxes. Two aircraft were built but only the first, R23/16, was completed. Ground trials commenced in 1919, after the armistice, but were interrupted by a gearbox failure which resulted in a propeller breaking up and causing extensive damage. The second airframe, R24/16 was never completed and the first not repaired after the ground running accident due to the Versaille Treaty restrictions. At the time of its completion the Siemens-Schuckert R.VIII was the largest complete aeroplane in the world, (the Mannesman-Poll triplane was to have been much bigger but was not completed before the Versaille Treaty restrictions were applied).[1]


Specifications (Siemens-Schuckert R.VIII)

Data from The German Giants[1]German aircraft of the First World War[2]

General characteristics
  • Crew: 6+
  • Length: 21.6 m (70 ft 10 in)
  • Wingspan: 48 m (157 ft 6 in)
  • Height: 7.4 m (24 ft 3 in)
  • Wing area: 440 m2 (4,700 sq ft)
  • Empty weight: 10,478 kg (23,100 lb)
  • Gross weight: 15,867 kg (34,980 lb)
  • Powerplant: 6 × Basse und Selve BuS.IVa 6-cyl. water-cooled in-line piston engines, 220 kW (300 hp) each
  • Propellers: tractor 900 rpm - 2 bladed , pusher 700 rpm - 4-bladed

Performance

  • Maximum speed: 125 km/h (78 mph; 67 kn) (estimated)
  • Range: 900 km (559 mi; 486 nmi) (estimated)
  • Service ceiling: 4,000 m (13,123 ft) (estimated)
  • Wing loading: 35 kg/m2 (7.2 lb/sq ft)
  • Cost - 750,000 Marks

See also

Related development
Aircraft of comparable role, configuration and era

References

  • Haddow, G.W. & Grosz, Peter M. The German Giants, The Story of the R-planes 1914-1919. London. Putnam. 1963.
  • Gray, Peter & Thetford, Owen. “German Aircraft of the First World War”. London, Putnam. ISBN 0-370-00103-6
  • Sollinger, Guenther, "Villehad Forssman: Constructing German Bombers 1914-1918. Moscow, Rusavia, 2009.

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