The IKS Drovana (IKC-11563, also known as the IKC Drovna) was a Klingon Empire starship, a Vor'cha-class attack cruiser (or battle cruiser) in Klingon Defense Force service in the late 24th century. (ST reference: The Star Trek Encyclopedia, Decipher RPG module: Starships)
Service history and disposition
In the year 2372, the Drovana was one of several vessels assigned to a covert mine laying operation around the Bajoran system, planning to block off support to Deep Space 9 in preparation for the expected outbreak of hostilities between the Klingon Empire and United Federation of Planets. In the course of the operation one of the mines detonated ten kilometers off the Drovana's port quarter, causing a massive hull breach and betraying the Klingons' presence.
The USS Defiant offered support to the crippled vessel which was initially refused, but later requested when the ship's systems further deteriorated. The ship was towed to Deep Space 9 for repairs. While docked at DS9, Commander Worf and Kurn were surgically altered so that they might board the Drovana and accessed its computer in order to uncover the mine strategy and deployment and acquire access codes so that the Defiant could detonate the minefield shortly after. (DS9 episode: "Sons of Mogh")
While canon materials surrounding the use of the model use the term "attack cruiser" for the ship's type, the Decipher RPG refers to this and other Vor'cha ships as "battle cruisers", and BotF as battleships. It is not clear if the terms were synonymous or if, at some point, some Vor'cha vessels were outfitted to fill service as a different ship type. Decipher's manual assigns the Drovana the name prefix "IKS", while BotF uses the IKC prefix, and BotF spells the name "Drovna".