From Klingon Ship Recognition Manual, 2nd Edition, FASA
Design by Forest G. Brown
Graphics by Dana Knutson

NOTES - circa 2288:

Known sphere Of Operation: Empire-wide use
Data Reliability: B
MajorDataSource: Klingon Sector lntelligence,TriangleSector Intelligence
 
     The D-11 destroyer is the most unusual design in the Klingon Imperial Navy, easily recognized on visual scan because of its one wing. It was commissioned into the service on Stardate 2/0405. That the vessel never fared well in battle has been blamed on its asymmetrical design, which worked to restrict the field of fire from the weapon mounting hardpoints.
     Powered by the KWC-1 and able to travel at speeds of Warp 7, it was one of the fastest ships in known space at the time it was commissioned, as well as having satisfactory tactical maneuverability. Nevertheless, the first D-11s were unpopular with the crews for they lacked sufficient firepower to perform their duties. It is not surprising then that a weaponry modification was made in the D-11C, in which the KD-4s were replaced with KD-5s and the new KD-10 was added. Although this extended the offensive range by 80,000 km, the D-11's performance in battle was not significantly improved.
     The D-11D used the KWC-2 warp engine, increasing the warp speeds attainable. It also mounted the new photon torpedo, which gave it more destructive firepower in a limited range but did little to improve battle performance overall.
     Due to its problems and the success of other destroyer designs, the mission of the D-11 has been changed. These vessels are now used for light assault duties. Having the capacity to carry a company of marines, the D-11s are used to secure lightly-held systems. They also have been reported to be accompanying the D-9 research cruisers in their efforts to open new territories.
     Of the 354 D-11s built, 106 Cs and 41 Ds remain in active service; 68 Bs, 39 Cs and 18 Ds have been destroyed; 1 D has been captured by the Romulans; 11 Bs and 2 Cs are listed as missing; 19 Bs and 4 Cs have been scrapped; 6 Bs, 2 Cs, and 2 Ds have been sold to the Orions; and 12 As have been sold to private interests in the Triangle. The D-11 is no longer under production; it was manufactured at Taamar and H'renn.
     The class name of 'One Wing' and its nickname of "The One-Armed Bandit" derive obviously from its design, as well as from the Klingon dath d'lan. Many jokes circulate through Star Fleet concerning the design. The most long-lived of these has it that the designer was under pressure to have the design completed by a certain date. In order to satisfy his contract and spare his life, goes the story, the manufacturer completed the ship minus the starboard wing assembly.