Siemens-Schuckert DDr.I
| DDr.1 | |
|---|---|
| |
| Role | Triplane fighter aircraft |
| National origin | Germany |
| Manufacturer | Siemens-Schuckert |
| First flight | 9 November 1917 |
| Number built | 1 |
The Siemens-Schuckert DDr.I was a World War I German twin engine, push-pull configuration triplane fighter aircraft. Only one was built, crashing on its first flight.
Design and development
The unusual DDr.I was one of the first aircraft to have two engines on the same centre line, one in
shoulder height on the fuselage and the lower wing passed unbraced below. There were short span ailerons on each wing.[1][2]
The smoothly
conventional undercarriage, with its mainwheels on a single axle mounted on wide spread V-struts attached to the lower fuselage at the lower corner points of each engine's firewall.[1][2]
Engine control problems and a lack of stability experienced in the first flight, made on 9 November 1917, led to a crash; the aircraft was not rebuilt and plans for a more powerful version, the DDr.II, powered by two 160 hp (119 kW), Siemens-Halske Sh.III eleven cylinder rotary engines were abandoned.[2]
Specifications
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Data from German Aircraft of the First World War [1]
General characteristics
- Crew: One
- Length: 5.8 m (19 ft 0 in)
- Wingspan: 10.9 m (35 ft 9 in)
- Wing area: 30 m2 (320 sq ft)
- Empty weight: 680 kg (1,499 lb)
- Gross weight: 910 kg (2,006 lb)
- Powerplant: 2 × Siemens-Halske Sh.1 9-cylinder rotary, 82 kW (110 hp) each
- Propellers: 2/4-bladed ; the tractor propeller had two blades and the pusher four.
Armament
- Guns: 2×7.9 mm (0.311 in) calibre LMG 08/15 (Spandau) synchronised machine guns
References
Wikimedia Commons has media related to Siemens-Schuckert DDr.I.
- ^ ISBN 0-85177-809-7.
- ^ ISBN 1-85833-777-1.