D ' kyr type The " D ' kyr " - type was a type of Vulcan starship operated by the High Command during the mid - 22nd century . Some of these vessels were given the designation of combat cruiser in the 2150s . ( ) History . In 2154 , a number of these starships were present at the Battle of Andoria , carrying out the ill - wishes of then – Administrator V ' Las , which included not only attempting to invade Andoria – but almost going to war with Earth by trying to destroy . ( ) Later that year , several of these combat cruisers were incorporated into an Andorian - Earth - Tellarite - Vulcan fleet , consisting of 128 ships , combined to create a sensor grid formed to detect a Romulan marauder that threatened to destabilize the entire region . ( ) Mirror universe . In the mirror universe , Vulcan rebels utilized this class of vessel to engage the fleet in 2155 , and were among the rebel ships that attacked the . ( ) Technical data . Physical arrangement . The outboard plan of the Vulcan combat cruiser ' s design consisted of a flattened , conical shaped hull that flared out and around the circular warp nacelle s and coming back together at the aft section of the ship , where the impulse engine s were placed . ( , etc . ) Tactical systems . Ships of this class were armed with both photonic and particle weapon s , as well as deflector shield technology . Particle beam emplacements include a forward emitter , two ventral emitters , and two aft emitters . ( ) In combat , these vessels were superior in firepower to Starfleet ' s and nearly comparable in firepower to the Andorian battle cruiser . ( ) This class was inferior to a force of three s , and in the vessels utilized in the mirror universe were significantly inferior to a single Federation starship . ( ) Propulsion systems . This class was capable of traveling a hundred light year s in a few weeks . ( ) When the warp drive was not in use , the ship ' s annular - warp nacelle was dropped into the vertical position ; when the engines were powered down , or preparing to launch its auxiliary craft , the nacelle was folded horizontally into the primary hull . ( ) Interior design . " D ' kyr " type starships had at least thirteen deck s . ( ) Bridge . The bridge for the " D ' kyr " - type included a panel where the commanding officer stood when speaking over the comm . ( ) Sickbay . The sickbay aboard this class was located on deck 5 , and consisted of a relatively small room with a single central biobed inside a transparent tube . The bed had wrist and ankle restraints for unwilling patients , and diagnostic controls on the transparent material . On the opposite wall of the entrance was a large white symbol , probably related to Vulcan medical services . ( ) Auxiliary control room . On the engineering deck was an auxiliary control room that could control the ships main functions if the main engine room and bridge were inoperable or unreachable . It had a round console in the center , which was directly below an access hatch to the access tubes . The controls there could control the power distribution net and if need be , overload it to destroy the ship . Around the walls of the room were monitors that showed engineering readouts and sensor telemetry , and on a flat wall opposite the door was a communications panel . At the bottom of that wall were two vents through which hexafluorine gas could be vented if the control room was taken over by hostile forces . The bulkhead controls ( usually routed to the control room via deck 9 ) could be rerouted through the auxiliary grid instead if need be . A series of command actuator circuit s were in the central panel which controlled the door locking mechanisms . They could overload if not sequenced properly when being realigned , shocking anyone attempting to access the panel once power had been routed into it . ( ) Shuttlebay . Starships of this type were equipped with a large shuttlebay ( part of which was located on deck 7 ) that spanned from bottom to top of the mid - section of the ship , just in front of the warp - ring area , and the auxiliary ship that docked inside the warp ring . Vessels of this type were usually equipped with at least two shuttlecraft . ( ) Appendices . Background information . Although the class name of this vessel was never identified on screen , it is plausible that this class may indeed be the unseen , referenced by Archer in . The menus of the " Enterprise " 4th season DVD set identify this vessel as a " Command Class . " In the final draft script of , this type of craft is referred to as " a large Vulcan Command Ship . " Although two vessels of this type appear in , they were described in that episode ' s final draft script merely as " powerful - looking Vulcan ships . " In the final draft script of , this configuration was referred to as " a Vulcan ring ship " , whereas it was called " a Vulcan ringship " in the final draft script of . The " D ' Kyr " - type was designed by John Eaves and rendered as a computer - generated image . It partially descended from Matt Jefferies " ring ship " design seen on the rec deck display in . ( ENT Season 3 Blu - ray , " Impulse " text commentary ) The " D ' kyr " - type starship docked at the station in " Bounty " had its " warp ring " tucked in the lower position . In " Impulse " , the " Seleya " appears to have its warp drive partially recessed as well , as does the damaged " Tal ' Kir " in " Future Tense " . The majority of the " Seyela " was custom - built . Herman Zimmerman explained , " " We designed [ the Vulcan ship ] from scratch for ' Impulse ' , a new vacu - form and that entire set – which was really a big H - shaped corridor with an airlock . " " ( , p . 57 ) The " D ' kyr " - type starship was one of the few " Star Trek : Enterprise " ornaments produced by Hallmark . Released in the holiday season under the name " Vulcan Command Ship " , it retailed for approximately US $ 28 . 00 and the engine ring glowed a bright blue when plugged into a normal string of Christmas lights . Apocrypha . In " Star Trek Online " , the " D ' kyr " - type starship is a science vessel equipped with the " Tal ' kyr " support shuttle . It can be purchased from the Cryptic Store .