Constitution (class)

• Heavy cruiser
• History
  • Initial designs: 2238 (ENT Novel: Last Full Measure)
    • Developed from a modification of the Baton Rouge class, using USS Constellation (NCC-1017) as a testbed vessel
  • First commissioned: USS Constitution (NCC-1700)
    • Launched 2242
  • Retirement: By 2300s
    • Unnamed unit held in Starfleet Fleet Museum for preservation (TNG: "Relics"; SCE Short Story: "Interphase Book 1")
• Statistics
  • Length: 228.6
  • Width: 127.1m
  • Height: 72.6m
  • Mass: 190,000mt
  • Crew:
    • 205 (2254) (TOS: "The Cage")
    • 430 (2266)
    • 431 minimum, 500 recommended (2273) (TOS Novel: Ex Machina)
  • Cruising speed: Warp 6 (OS)
  • Maximum speed: Warp 8 (OS)
  • Auxiliary vessels: Four Class F shuttlecraft
  • Armament
    • Original design
      • 2x type-IX phaser banks
        • Upgraded to type-ten phaser banks by 2255 (DIS Novel: Desperate Hours)
      • Torpedo launcher, 6x forward, 1x aft
• Layout
  • Original design
    • Fourteen science labs (TOS: "Operation: Annihilate!")
    • 22 decks
      • Saucer spans decks 1 to 8
      • Saucer support spans decks 6 to 13
      • Engineering hull spans decks 14 to 22
    • Deck 1
      • Main bridge (TOS)
    • Deck 3
      • Crewmen's lounge (TOS: "Let That Be Your Last Battlefield")
      • Recreation rooms (TOS: "Charlie X", "Let That Be Your Last Battlefield")
    • Decks 3 to 5
      • Main impulse engines (TOS: "Where No Man Has Gone Before", "The Corbomite Maneuver")
        • Auxiliary engineering room located along impulse engines
    • Deck 4
      • Armory (TOS Novel: Errand of Vengeance: The Edge of the Sword)
        • 10 decks above Engineering
      • Crew quarters (TOS: "The Ultimate Computer")
      • Environmental control (TOS: "The Ultimate Computer")
      • Furthest fore-end of the ship by "Trials and Tribble-ations"
    • Deck 5
      • Captain's quarters (TOS: "Mirror, Mirror", "Journey to Babel", "Elaan of Troyius")
      • Crew quarters
      • Sickbay (TOS: "Amok Time", "Elaan of Troyius")
      • Transporter room (TOS: "Let That Be Your Last Battlefield")
    • Deck 6
      • Briefing room (TOS: "Return to Tomorrow")
      • Crew quarters (TOS: "The Ultimate Computer")
      • Guest quarters (TOS: "Let That Be Your Last Battlefield")
      • Life support (TOS: "Day of the Dove")
      • Transporter room (SCE Short Story: "Interphase Book 2")
    • Deck 8
      • Auxiliary control (TOS: "I, Mudd")
        • Deck 7, section 21-Alpha on USS Defiant by "Interphase Book 2"
    • Deck 9
      • Crew quarters (TOS: "The Man Trap")
      • Life sciences (TOS: "The Man Trap")
    • Deck 12
      • Crew quarters (TOS: "The Enemy Within")
    • Deck 14
      • Transporter room (TOS: "Dagger of the Mind")
      • Main engineering, upper section (TOS: "Dagger of the Mind")
      • Personnel director's office (TOS: "Dagger of the Mind")
      • Maintenance airlock (port and starboard) (SCE Short Story: "Interphase Book 2")
    • Deck 15
      • Main engineering, lower section
      • Landing bay
    • Deck 20
      • Cargo hold (port and starboard) (SCE Short Story: "Interphase Book 1")
    • Deck 21
      • Lowest habitable level by "Trials and Tribble-ations"
    • Deck 22
      • Antimatter containment
      • Power transfer conduits (ENT: "In a Mirror, Darkly, Part II")
      • Satellite bay (TOS: "Operation: Annihilate!")
      • Tank release (TOS: "Let That Be Your Last Battlefield")
  • 2270s Refit design
    • Decks commonly referred to by letter rather than number (e.g., A Deck, B Deck, etc.)
    • Deck 1
      • Main bridge (Star Trek: The Motion Picture, et al.)
    • Deck 3
      • Officers' quarters (Star Trek III: The Search for Spock)
    • Deck 4
      • Admiral's quarters (Star Trek II: The Wrath of Khan)
    • Deck 5
      • Officers' quarters (Star Trek: The Motion Picture)
    • Deck 6
      • Crew quarters (TOS Novel: Ex Machina)
    • Deck 6-7
      • Main gangway (TOS Novel: Ex Machina)
    • Deck 7
      • Science complex (TOS Novel: Ex Machina)
        • Occupies full forward quadrant of the deck (TOS Novel: Ex Machina)
      • Sickbay (TOS Novel: Ex Machina)
    • Deck 13
      • Torpedo bay (Star Trek VI: The Undiscovered Country)
    • Deck 17-18
      • Cargo/landing bay complex (TOS Novel: Ex Machina)
        • Deck can be retracted to provide access to storage bays (TOS Novel: Ex Machina)
    • Deck 19
      • Cargo bays (TOS Novel: Ex Machina)

Known ships

Constitution-class

Name	Registry	Service Begin	Service End
USS Constellation (NCC-1017)	NCC-1017	2263	2267*
USS Constitution (NCC-1700)	NCC-1700	2242*	2267
USS Enterprise (NCC-1701)	NCC-1701	2245*	2285*
USS Farragut (NCC-1702)	NCC-1702	2247	2257*
USS Hood (NCC-1703)	NCC-1703	2267	2268
USS Excalibur (NCC-1705)	NCC-1705	2268	2268*
USS Exeter (NCC-1706)	NCC-1706	2267	2268*
USS Ranger (NCC-1707)	NCC-1707	2286	2286
USS Intrepid (NCC-1708)	NCC-1708	2255	2268*
USS Lexington (NCC-1709)	NCC-1709	2267	2268
USS Potemkin (NCC-1711)	NCC-1711	2268	2293
USS Merrimac (NCC-1715)	NCC-1715	2273	2273
USS Kongo (NCC-1716)	NCC-1716	2248*	2293
USS Essex (NCC-1727)	NCC-1727	2267	2267
USS Defiant (NCC-1764)	NCC-1764	2268	2268*
USS Emden (NCC-1856)	NCC-1856	2293	2293
USS Endeavour (NCC-1895)	NCC-1895	2260	2293
USS Ahwahnee (NCC-2048)	NCC-2048	2293	2293