LFG Roland D.XVII

From Wikipedia, the free encyclopedia
Jump to: navigation, search
D.XVII
Role Single seat fighter aircraft
National origin Germany
Manufacturer LFG Roland (Luft-Fahrzeug-Gesellschaft)
First flight 18 October 1918 roll-out
Number built 1

The LFG Roland D.XVII was a single-seat, single-engine, parasol wing German fighter aircraft flown close to the end of World War I. Only one was built.

Design and development[edit]

The D.XVII was the last of LFG's line of single-seat fighters. It combined features of their previous two models, the D.XV and D.XVI: it had the engine and fuselage of the third D.XV but was a parasol wing aircraft like the D.XVI.[1][2]

Despite the common configuration, the wings of the D.XVI and D.XVII were different; the latter's had constant chord and overhung ailerons. It was mounted over the fuselage on each side with an inverted V-form strut pair from the leading edge to the lower fuselage longeron and a second strut from the rear wing spar to the same longeron further aft. The structure was stabilized laterally with a further outward leaning strut between top of the forward V-strut and the upper fuselage.[1][2]

The D.XVII shared the flat-sided, tapered fuselage of the third D.XV, a tailplane at the top of the fuselage, a straight edged fin and an almost semicircular rudder which reached down only to the tailplane. Both aircraft were powered by a 138 kW (185 hp) BMW IIIa six cylinder, water-cooled inline engine driving a two-bladed propeller. The fixed conventional undercarriage was standard for the time, with a rigid axle mounted on V-struts to the lower fuselage, plus a tailskid faired into a small ventral fin.[1][2]

The D.XVII was rolled out on 18 October 1918 in time for the third D-type competition held at Adlershof that month but was judged inferior to the Fokker V 29, another parasol wing, BMW III powered design. The Roland's wing oscillated in turns and stalled without warning at low speeds.[1]

Specifications[edit]

Data from Green & Swanborough p.340[1]

General characteristics

  • Crew: One
  • Powerplant: 1 × BMW IIIa 6-cylinder water-cooled inline, 138 kW (185 hp)
  • Propellers: 2-bladed

Armament

References[edit]

  1. ^ a b c d e Green, William; Swanborough, Gordon (1994). The Complete Book of Fighters. Godalming, UK: Salamander Books. p. 3340. ISBN 1-85833-777-1. 
  2. ^ a b c Gray, Peter; Thetford, Owen (1970). German Aircraft of the First World War. London: Putnam. p. 462. ISBN 0-85177-809-7.