LFG Roland D.XVII
|Role||Single seat fighter aircraft|
|Manufacturer||LFG Roland (Luft-Fahrzeug-Gesellschaft)|
|First flight||18 October 1918 roll-out|
Design and development
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.
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.
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.
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.
Data from Green & Swanborough p.340
- Crew: One
- Powerplant: 1 × BMW IIIa 6-cylinder water-cooled inline, 138 kW (185 hp)
- Propellers: 2-bladed
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