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Constitution Class

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Universe : Prime Timeline
Affiliation : Federation
Class Name : Constitution Class1
Type : Heavy Cruiser
Unit Run : 12 built in total. 12 have been retired from service.
Commissioned : 2244 - 2260, class remains in service
Dimensions : Length : 289 m2
Beam : 127.1 m3
Height : 72.6 m3
Decks : 214
Mass : 600,000 metric tons
Crew : 2035
Armament : 6 x Heavy laser cannon, total output 2,000 TeraWatts
4 x Mod 3 photonic torpedo tube
Defence Systems : Standard shield system, total capacity 394,000 TeraJoules
Standard Monotanium Double hull.
Standard level Structural Integrity Field
Warp Speeds
(TOS scale) :
Normal Cruise : 5
Maximum Cruise : 6
Maximum Rated : 7.5 for 8 hours.
Strength Indices :
(Galaxy class = 1,000)
Beam Firepower : 40
Torpedo Firepower : 15
Weapon Range and Accuracy : -
Shield Strength : 145.93
Hull Armour : 10
Speed : 220
Combat Manoeuvrability : -
Overall Strength Index : 61
Diplomatic Capability : 4
Expected Hull Life : 40
Refit Cycle : Minor : 1 year
Standard : 1 years
Major : 20 years


The original configuration of the USS Enterprise differed from the "classic" fit which gained the ship fame in several ways. Most notably, the original design incorporated a higher degree of automation and a smaller number of science facilities, giving a standard crew of 203.5 The ship was launched with laser cannon rather than the phasers which came into service in the 2260s. It also carried the "photonic" torpedoes which had been developed in the previous century, rather than the fully fledged photon torpedoes which came into service soon afterwards.

Colour key

Canon source Backstage source Novel source DITL speculation


# Series Season Source Comment
1 TNG 1 The Naked Now
2 Star Trek Encyclopedia Third edition, page 138
3 Star Trek - Starfleet Technical Manual Section 1:04:10
4 Production drawing
5 TOS 1 The Cage
Series : TNG Season 1 (Disc 1)
Episode : The Naked Now
Book : Star Trek Encyclopedia
Comment : Third edition, page 138
Book : Star Trek - Starfleet Technical Manual
Comment : Section 1:04:10
Source : Production drawing
Series : TOS Season 1 (Disc 2)
Episode : The Cage


This page is prompted by the fact that there are noticable and canon differences between the Enterprise seen in The Cage and Kirk's Enterprise. Notably, the shooting model is slightly different - and the changes have been kept even in the remastered version of the episode. Pike also gives the crew complement as 203, when Kirk's ship had 400+ crew. The differences in the sets is also significant, most notably in the communicator devices attached to consoles.

The idea of the ship being armed with lasers is presumed from the fact that the crew were using hand lasers. Why they would go from the phase weapons of Enterprise to lasers and then to phasers I do not know; just one more example of Enterprise screwing things up. I've kept Enterprise's "photonic" torpedoes and generally tried to make the ship a bit slower and weaker than the classic Enterprise.
© Graham & Ian Kennedy Page views : 238,804 Last updated : 2 Jan 2015