The IKS Hakask was a Klingon Imperial Defense Force starship in service in the 23rd century. The Hakask was the flagship of the Klingon Fleet at Regulus during the brief Federation-Klingon War of 2267. In battle against the USS Intrepid, the Hakask captured Intrepid's Captain Suvuk, having him brought aboard for mind-sifter torture. Suvuk escaped, melting down the Hakask impulse drive, disabling their warp drive and downloading their computer to logic-solids that he brought with him, escaping in a Klingon shuttlecraft. (TOS - Rihannsu novel: My Enemy, My Ally)

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