Albatros D.XI

The Albatros D.XI was a German single-seat fighter sesquiplane that first flew in February 1918. It was the first Albatros fighter to use a rotary engine, the 120 kW Siemens-Halske Sh.III, and it had a new wing construction in which diagonal struts from the fuselage replaced the usual wire bracing. The upper wing had greater span than the lower, and the rotary engine called for a large propeller and a correspondingly tall undercarriage. It carried the same twin 7.92 mm LMG 08/15 machine guns as other Albatros fighters. Two prototypes were built, differing in ailerons and propeller, and the D.XI was not put into production.