The Albatros D.XI was a single-seat fighter biplane first flown in February 1918. It was the first Albatros design to use a rotary engine, in the form of the 160 hp Siemens-Halske Sh III, and also featured a new wing construction with diagonal struts from the fuselage replacing traditional wire bracing. This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... The fuselage can be short, and seemingly unaerodynamic, as in this Christen Eagle 2 The fuselage (from the French fuselé spindle-shaped) is an aircrafts main body section that holds crew and passengers or cargo. ...

The wings had unequal spans with the upper planes having greater span than the lower ones, and were braced by I-struts with an aerofoil cross-section, additional rigidity being provided by diagonal struts from the base of these to the top of the fuselage. The use of a rotary engine necessitated a large-diameter propellor and a correspondingly tall undercarriage. A propeller can be seen as a rotating fin in water or a wing in air. ... The undercarriage or landing gear is the structure (usually wheels) that supports an aircraft when it is taxying or stationary. ...

The D.XI was armed with the same twin 7.92 mm machine guns employed on other Albatros fighters. Two prototypes were built, the first having balanced, parallel-chord ailerons and a four-blade propellor; and the second with inversely tapered, unbalanced ailerons and a two-blade propellor. The design was not put into full-scale production. Aileron location on a Piper PA-28. ...

References

• Green, W. & Swanborough, G. (1994). The Complete Book of Fighters. London: Salamander Books. ISBN 1-85833-777-1