Schütte-Lanz D.VII
| Industry | Aircraft manufacturing |
|---|---|
| Headquarters | Germany |
The Schütte-Lanz D.VII represented a German-designed, single-engine biplane fighter aircraft constructed near the conclusion of World War I.
Design and development
Constructed primarily from wood and covered with fabric, the D.VII evolved from the earlier Schütte-Lanz D.III fighter, which had an unremarkable showing in the initial D type (single-seat biplane fighter) contest held in late January 1918. Notable modifications encompassed extended wingspan, enhanced ailerons for improved control, and an upgraded powerplant—a more potent variant of the Mercedes D.III engine, specifically the 160 hp (120 kW) Mercedes D.IIIavü. The aircraft's maiden flight occurred in May 1918, preparing it for participation in the subsequent D type competition conducted from late May through June.[1]
Both the D.VII and its predecessor shared several wing characteristics: they were single bay biplanes featuring N-shaped interplane struts, with dihedral present solely on the upper wing[2] and exhibiting mild stagger. Although the D.VII's wingspan exceeded that of the D.III by approximately 1.00 metre (3 ft 3 in), both models had equal upper and lower wing spans but narrower lower wing chord dimensions. The wings were mostly straight with parallel edges along their length, except for the ailerons which expanded in chord towards the tips, thereby broadening the outer wing area. A key distinction was that the D.VII incorporated ailerons on both upper and lower wings.[1]
Unlike the D.III’s upper wing radiator integrated into its airfoil section, the D.VII featured a rectangular, car-style radiator positioned at the front of the fuselage directly ahead of the Mercedes engine. The fuselage itself had flat sides covered with plywood, complemented by a rounded top decking; its single open cockpit was situated at the wing trailing edges, each cut-out designed to enhance pilot visibility. When viewed from the side, the fuselage of the D.VII was approximately 500 millimetres (20 in) shorter and exhibited a stouter profile compared to its forerunner. The tailplane was mounted atop the fuselage and displayed a greater aspect ratio, equipped with a one-piece elevator. The vertical stabilizer was taller and narrower than before, featuring a balanced rudder that terminated above the elevator line. The fixed conventional undercarriage consisted of a single axle supported by two V-shaped struts, supplemented by a tailskid located at the extreme rear.[1][2]
Despite underwhelming results during competition trials, all three prototypes proceeded through further developmental evaluations up until the November Armistice.[1]
Specifications
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References
- ↑ 1.0 1.1 1.2 1.3 Green, William; Swanborough, Gordon (1994). The Complete Book of Fighters. Godalming, UK: Salamander Books. p. 521. ISBN 1-85833-777-1.
- ↑ 2.0 2.1 Gray, Peter; Thetford, Owen (1970). German Aircraft of the First World War. London: Putnam. pp. 549. ISBN 0-85177-809-7.
Further reading
- Herris, Jack (2020). German Aircraft of Minor Manufacturers in WWI: A Centennial Perspective on Great War Airplanes. Great War Aviation Centennial Series (50). Vol. 2: Krieger to Union. n.p.: Aeronaut Books. ISBN 978-1-935881-86-5.
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