03/31/2010. Flown for the first time in February 1918, the D.XI departed from the traditional Albatros formula in certain respects. Like its predecessors, it was of wooden construction with fabric-covered wings and plywood-covered fuselage, but the unequal-span staggered wings had inclined aerofoil-section
I-struts braced from their bases by pairs of diagonal struts which eliminated the need for wire bracing.

For the first time in an Albatros fighter a rotary engine was employed, this being a 160 hp Siemens & Halske Sh III, and the unusually large propeller necessitated an exceptionally tall undercarriage. Armament comprised the usual twin 0.312 in (7.92 mm) machine guns, and two prototypes were built, the first having a four-blade propeller and balanced parallel-chord ailerons, and the pictured second having a two-blade propeller and unbalanced ailerons of inverse taper.

Span: 26 ft 3 in (8.00 m)
Length: 18 ft 3.5 in (5.58 m)
Wing area: 199.13 sq.ft (18.5 sq.m)
Weight empty: 1,089 lb (494 kg)
Loaded weight: 1,519 to 1,594 lb (689 to 723 kg)
Max speed: 118 mph (190 kmh)
Climb: to 6,560 ft (2,000 m) 4 min 39 sec
Service ceiling: 9,842 ft (3,000 m)
Endurance: 1.5 hr