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Dominion Battleship

Size Comp
Universe : Prime Timeline
Affiliation : Dominion
Class Name : Dominion Battleship
Type : Battleship
Unit Run : Starfleet estimates thirty vessels completed 30 built in total. 19 have been lost in all.
Commissioned : Unknown, but the design is believed to be less than 15 years old
Dimensions : Length : 1,282 m [1]
Beam : 1,048 m [2]
Height : 324 m [2]
Decks : 79
Mass : 18,200,000 metric tons
Crew : 1,200, plus up to 20000 troops
Armament : 2 x Heavy duty Pulse polaron cannon
38 x Phased polaron beam emitters, total output 235,000 TeraWatts
9 x Mark 2 photon torpedo tube with 600 rounds
Defence Systems : Standard shield system, total capacity 4,644,000 TeraJoules
Heavy Variethiel Double hull plus 25 cm High density armour.
High level Structural Integrity Field
Warp Speeds
(TNG scale) :
Normal Cruise : 8
Maximum Cruise : 9.4
Maximum Rated : 9.925
Strength Indices :
(Galaxy class = 1,000)
Beam Firepower : 4,700
Torpedo Firepower : 3,240
Weapon Range and Accuracy : 1,410
Shield Strength : 1,720
Hull Armour : 2,940
Speed : 1,824
Combat Manoeuvrability : 400
Overall Strength Index : 2,998
Diplomatic Capability : Believed to be equivalent to Starfleet Grade 3
Expected Hull Life : Unknown


Reports that the Dominion was developing a new class of extreme size and power have circulated for some time, but only with the loss of the USS Valiant was this rumour confirmed. The Valiant survivors revealed that the battleship was even larger than had been thought - twice the size of a Galaxy class starship and three times the strength. Had the ship been put into service it would have been a major threat to the Allies; although he was technically acting against orders, the Valiant's captain decided that he had to make an attempt to destroy the ship before it could enter service.

The Valiant located a potential weak spot on the battleship and managed to get close enough to attack it, but although the attack was successful the enemy ship survived and continued to return fire. The Valiant was destroyed during this action with most of her crew lost, but a few survivors managed to make it back to Federation space in escape pods. [3]

The current status of the prototype battleship is unknown. It was apparently quite badly damaged by the Valiants attack, [3] and is believed to have spent some time in shipyards after the battle being repaired. For the rest of the war there were no further reports of these vessels; it seems unlikely that the Dominion was unable to correct what was after all a fairly minor design flaw, yet they seem to have abandoned the Battleship completely after the Valiant battle.

But this was not the end of the basic design, however; a scaled up version of the Battleship design was used as the basis for the much larger Dreadnought type vessel seen - though not engaged - in the final stages of the war. [4]

Colour key

Canon source Backstage source Novel source DITL speculation


# Series Season Source Comment
1 DS9 6 Valiant Stated in the to be twice the size of a Galaxy class ship. This is assumed to mean twice the length, rather than twice the volume. Note that battleships of this design seen in the DS9 finale appeared to be approximately 4.5 kilometres long compared to Dominion battlecruisers.
2 Production drawing
3 DS9 6 Valiant
4 DS9 7 What You Leave Behind, Part 1
Series : DS9 Season 6
Episode : Valiant
Comment : Stated in the to be twice the size of a Galaxy class ship. This is assumed to mean twice the length, rather than twice the volume. Note that battleships of this design seen in the DS9 finale appeared to be approximately 4.5 kilometres long compared to Dominion battlecruisers.
Source : Production drawing
Series : DS9 Season 6
Episode : Valiant
Series : DS9 Season 7
Episode : What You Leave Behind, Part 1


The Dominion battleship was seen in the episode "Valiant", where it kicked the snot out of a Defiant class ship manned by a bunch of Starfleet cadets stranded behind enemy lines. The ship was described as twice the size and three times the firepower of a Galaxy class starship; in both cases I've had to make an assumption. First, I guess that twice the size means twice the length, rather than twice the volume - this seems to fit what we see of the ship on screen, but be warned that it could be significantly smaller than the sizes I have it. Since those figures are based on a solid episode reference I've coded them as canon.

Second, I've assumed that three times the firepower means three times the overall strength, rather than just three times the beam weapon output. Again, there is nothing much to say unless we eventually get to see more of this ship in action in future incarnation of Trek.

Although this ship design was also seen in the DS9 final episode "What You Leave Behind", special effects shots indicate that those ships are considerably larger than the original battleship. After considerable wavering I've decided to class them as a new type of ship, the Dreadnoughts. See the Comments section of that class for more details about the relationship between the two ships.

© Graham & Ian Kennedy Page views : 80,191 Last updated : 20 May 2009