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Borg Tactical Cube

Size Comp
Universe : Prime Timeline
Affiliation : Borg
Class Name : Borg Tactical Cube
Type : Combat vessel
Unit Run : Unknown 60,000 built in total. 127 have been lost in all.
Commissioned : Unknown, but in service as of 2376. [1]
Dimensions : Length : 3,000 m
Beam : 3,000 m
Height : 3,000 m
Decks : Approx 700
Mass : 15,000,000 metric tons
Crew : Unknown
Armament : Various weapons can be built as needed; typically heavily armed, total output 10,000,000 TeraWatts
Defence Systems : Adaptive shield system, total capacity 7,290,000 TeraJoules
Standard Automatic regeneration matrix Double hull plus 20 cm Ablative armour.
High level Structural Integrity Field
Warp Speeds
(TNG scale / Transwarp) :
Equipped with transwarp drive, top speed unknown [2]
Strength Indices :
(Galaxy class = 1,000)
Beam Firepower : 200,000
Torpedo Firepower : -
Weapon Range and Accuracy : -
Shield Strength : 2,700
Hull Armour : 547,000
Speed : -
Combat Manoeuvrability : 250
Overall Strength Index : 92,536
Diplomatic Capability : Generally none - specialized facilities can be constructed if required
Expected Hull Life : Unknown


Relatively little is known about this type of Borg vessel, except that it is a tactical rather than general purpose vessel. Voyager encountered one in 2376 when Captain Janeway attempted to infiltrate the collective in order to assist a small group of Borg rebels in their efforts to escape the collective. The cube had a more armoured appearence than the more general purpose ships and carried heavier weaponry, but Voyager was able to last long enough in battle with the cube for Janeway and her officers to succeed in their plan to get aboard and become assimilated. Unfortunately, the cube destroyed the Delta Flyer in the process. [1]

Colour key

Canon source Backstage source Novel source DITL speculation


# Series Season Source Comment
1 VOY 6 Unimatrix Zero, Part 1
2 VOY 5 Dark Frontier, Part 1
Series : VOY Season 6 (Disc 7)
Episode : Unimatrix Zero, Part 1
Series : VOY Season 5 (Disc 4)
Episode : Dark Frontier, Part 1


Seen in Voyager's "Unimatrix Zero Part I", we know very little about this vessel. Seven's line about it was "This is a Class Four tactical vessel - heavily armed. The central plexus is protected by multi-regenerative security grids. We'd be detected long before we could reach it." When Voyager did reach the cube it had a more armoured look than any other we've seen.

Voyager lasted several minutes in battle with the cube, but after all these years of installing alien technology Voyager's specifications could be anywhere between the average Federation shuttlecraft and close to a Borg cube itself, so that's little help. I made the tac cube somewhat more powerful than the standard one in most respects, and kept the same speed figure while reducing the agility a little because of the increased mass (presumed because of the extra armour). Size is always hard to tell, so I kept it at the same as a normal cube but turned that to speculation since no figure is given in the episode.
© Graham & Ian Kennedy Page views : 56,719 Last updated : 22 Dec 2021