Excelsior class

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Class Information
Expected Duration: 75 years
Resupply Interval: 2 years
Refit Interval: 5 years
Type: Cruiser
Role: Explorer
Length: 467 meters
Width: 185 meters
Height: 100 meters
Decks: 28
Warp Rating
Cruising Speed: Warp 6
Maximum Speed: Warp 8.5
Emergency Speed: Warp 9 (for 12 hours)
Officers: 150
Enlisted: 650
Marines: 0
Passengers: 100
Evacuation Capacity: 5,000
Auxiliary Craft


Tactical Systems
Torpedo Launchers:
Torpedo Compliment:
Other Systems:
[ Source ]

The following article describes Excelsior-class starships during the late twenty-third and early twenty-fourth centuries. For Excelsior-class starships serving in the latter half of the twenty-fourth century, see Excelsior-Refit-class.

The Excelsior-class is a class of Federation starship that entered service in Starfleet during the late twenty-third century and has continued to serve throughout much of the twenty-fourth century.


General Overview

Class History

The history of the Excelsior-class tends to consist of extremes. Initially fitted with a Transwarp drive and proclaimed "the great experiment", the ship had an ignoble start when its engines failed when it was called into action to prevent the theft of the USS Enterprise NCC-1701. Although this was due to deliberate sabotage, it transpired that the prototype had been saved from a major disaster; engineers working to correct the damage discovered a series of flaws in the Transwarp drive which, had it been used, would have caused a nacelle implosion which would have destroyed the ship. The USS Excelsior NX-2000 spent nearly a full year in Spacedock while engineering specialists struggled to diagnose and repair the various problems.

Re-launched early in 2286, the ship met with little more success. Although the fatal flaw of the Transwarp drive was repaired, the system was subject to major problems and over the next year it never completed a successful test, much to the embarrassment of Captain Styles and his crew. Finally Starfleet put the Transwarp project on hold indefinitely while the Federation's scientific and technological advances caught up with the Transwarp theories. For a short time the Excelsior faced decommissioning.

Rather than just allow the Excelsior to stand idle in Spacedock while an uninformed team of Admirals decided what to do with the prototype and the embarrassment the Transwarp project, Starfleet Admiral Harry Morrow ordered an evaluation of the prototype, carried out by some of the Federation's finest minds in Starship Engineering. It was discovered that there was nothing wrong with the basic engineering of the space frame, and in all other areas the Excelsior-class was still the most advanced ship in Starfleet, by a considerable margin. In light of this Starfleet rapidly decided to fit the Excelsior- class with a more conventional propulsion system. This process went remarkably smoothly, and by the end of the year the Excelsior was in space again.

From here the history of the ship leapt from one extreme to the other; from being a costly and embarrassing failure, the Excelsior rapidly built a reputation for outstanding performance and a solid reliability few other designs have matched. Equipped with nearly triple the amount of science labs and carrying the most advanced package of sensors ever conceived by the Federation, the Excelsior-class is a more than adequate successor to the Constitution-class line as, Starfleet's main platform for space exploration.

In addition, her speed and manoeuvrability, coupled with her capabilities make the Excelsior-class more than a match for any class of vessel currently serving the Romulan or Klingon fleets, from the Battlecruisers, to the Bird of Prey classes.

Technical Data

Physical Arrangement

Deck Listing

Deck 1: Main Bridge, Ready Room, Briefing Room
Deck 2: VIP Dining Room, Primary Subspace Antenna Array, Auxiliary Power Generators
Deck 3: NCO's Quarters, Environmental Subsystems, Tactical Sensors, Matter Injector, Warp Core Ejection Systems, Shield/SIF/IDF Generators
Deck 4: NCO's Quarters, Impulse Drive Assembly, Engineering Labs + Workshops, Dual Mount Type VIII Phaser Emitters (5), Multi-Use Officers, Transporter Rooms 1-4, Escape Pods
Deck 5: VIP Quarters, Junior Officer's Quarters, NCO's Quarters, Passenger Quarters, Impulse Drive Reactors, Auxiliary Power Generators
Deck 6: Captain's Quarters, Senior Officer's Quarters, Junior Officer's Quarters, NCO's Quarters, Passenger Quarters, Officer's Mess + Galley, NCO's Mess + Galley, Sickbay, Chief Medical Officer's Office, Morgue, Medical Stores, Surgical Suites, Gymnasium, Primary & Secondary Computer Cores (Upper Section), Computer Labs
Deck 7: Senior Officer's Quarters, Junior Officer's Quarters, NCO's Quarters, Ships Library, Recreation Deck (Upper Deck), Swimming Pool (Upper Deck), Officer's Lounge, Primary & Secondary Computer Cores (Upper-Mid Section), Computer Labs, Dorsal RCS Thruster Quads (6)
Deck 8: Junior Officer's Quarters, NCO's Quarters, Ventral Sensor Array, Science Labs, Stellar Cartography Lab (High Bay), Recreation Deck (Main Deck), NCO's Lounge, Swimming Pool (Main Deck), Primary & Secondary Computer Cores (Lower-Mid Section), Computer Labs, Ventral RCS Thruster Quads (6), Escape Pods
Deck 9: Conference Suites, Brig, Security Offices, Main Armoury, Passenger Quarters, Dual-Mount Type VIII Phaser Emitters (5), Stellar Cartography Lab (Main Deck), Primary & Secondary Computer Cores (Lower Section), Computer Labs, Escape Pods
Deck 10: Primary Hull - Secondary Forward Tractor Beam Emitter. Auxiliary Power Generators
Secondary Hull - Torpedo + Probe Storage, Probe Launchers (P/S)
Deck 11: Primary Hull - Long Range Sensor Array
Secondary Hull - Secondary Forward Photon Torpedo Launchers (P/S)
Science Pod - Single-Mount Type VIII Phaser Emitter, Primary Aft Tractor Beam Emitter, Secondary Subspace Antenna Array
Deck 12: Primary Hull - Planetary Sensor Dome
Secondary Hull - Main Engineering Support Bays, Damage Control
Science Pod - Science Labs
Aft Shuttlebay Module - Dual-Mount Type VIII Phaser Emitter, Auxiliary Subspace Antenna Array
Deck 13: Secondary Hull - Main Engineering, Chief Engineers Office, Matter/Antimatter Reaction Chamber, Engineering Labs + Workshops
Science Pod - Science Labs, Astrometric Telescope
Aft Shuttlebay Module - Shuttlebay 1 (High Bay), Shuttlebay 1 Launch Control
Deck 14: Secondary Hull - Auxiliary Power Generators, Main Engineering Support Bays, Shield/SIF/IDF Generators
Science Pod - Long Range Sensors, Science Labs
Aft Shuttlebay Module - Shuttlebay 1 (Main Deck), Cargo Transporter 1, Shuttlecraft Mission Operations
Deck 15: Auxiliary Bridge, Shuttlecraft + Workbee Storage, Shuttlecraft Fuel Tankage, Tactical Sensors, Cargo Bay, Deuterium Tankage (Upper), Auxiliary Power Generators, Quartermaster's Office, Ship's Laundry
Deck 16: Biology Laboratories, Aft Torpedo Storage (High Bay), Engineering Labs + Workshops, Auxiliary Power Generators, Cargo Bay
Deck 17: Engineering Labs + Workshops, Torpedo Launch Control Room, Primary Forward Torpedo Launchers (P/S), Aft Torpedo Launchers (P/S), Aft Thrusters, Environmental Subsystems, Aft Torpedo Storage (Main Deck), Dual-Mount Type VIII Phaser Emitter, Cargo Bay, Secondary Aft Tractor Beam Emitter, Cargo Transporter 2
Deck 18: Junior Officer's Quarters, Cargo Bay, Turbolift Maintenance + Control, Primary Forward Torpedo Storage
Deck 19: Junior Officer's Quarters, NCO's Quarters, Engineering Labs + Workshops, Tertiary & Quaternary Computer Cores (Upper Section), Computer Labs, Auxiliary Power Generators
Deck 20: NCO's Quarters, Engineering Labs + Workshops, Antimatter Storage Pods (Upper), Arboretum (High Bay), Tertiary & Quaternary Computer Cores (Upper-Mid Section), Computer Labs
Deck 21: NCO's Quarters, Engineering Labs + Workshops, Antimatter Injector, Antimatter Storage Pods (Lower), Transporter Rooms 5+6, Arboretum (Main Deck), Tertiary & Quaternary Computer Cores (Lower-Mid Section), Computer Labs
Deck 22: Engineering Labs + Workshops, Tertiary & Quaternary Computer Cores (Lower Section), Computer Labs, Sensor Array, Science Labs, General Use Offices
Deck 23: Main Deflector Array Assembly (Upper), Deflector Control, Cargo Bay, Science Labs, General Use Offices
Deck 24: Shuttlebay 2 Launch Control, Main Deflector Array Assembly (Lower)
Deck 25: Shuttlebay 2 (Upper Deck), Workbee Storage, Cargo Transporter 3
Deck 26: Auxiliary Power Generators, Sensor Array, Shield/SIF/IDF Generators
Deck 27: Primary Forward Tractor Beam Emitter, Shuttlebay 2 (Main Deck)
Deck 28: Single-Mount Type VIII Phaser Emitters (4), Waste Reclamation

Starships Commissioned

Excelsior -class Starships
USS BejingUSS CarthageUSS MadridUSS OrlandoUSS PortlandUSS Venice

Official Federation Starship Specifications
Corvette Classes
(< 200 meters)
Defiant-classJu`Day-classNaucrate-classNeptune-class (ENT) • NV-class (ENT) • Nova-classOberth-class (TME) • Oberth-Refit-classRaven-classSaber-classSentinel-classWright-class
Frigate Classes
(200-350 meters)
Centaur-classHalsey-class (TME) • Intrepid-classMiranda-class (TME) • Miranda-Refit-classNew Orleans-classOlympic-classPhobos-class (TME) • Steamrunner-class
Cruiser Classes
(350-550 meters)
Akira-classAmbassador-classConstitution-Refit-class (TME) • Excelsior-class (TME) • Excelsior-Refit-classLuna-classNebula-classNX-class (ENT) • Prometheus-class
Ship-of-the-Line Classes
(550-1000 meters)
Fighter Classes Avenger-classMustang-classPhantom-classSpitfire-classTyphoon-class
Shuttle Classes Hunley-class ShuttleType 1-class Shuttle (ENT) • Type 3-class Shuttle (TME) • Type 6-class ShuttleType 7-class ShuttleType 8-class ShuttleType 9-class ShuttleType 10-class ShuttleType 11-class ShuttleType 18-class Shuttle
Runabout and Transport Classes Argo-classAvro-classDanube-classDelta Flyer-classTalon-classTri-Star-class
Captain's Yachts Aerowing-classIncursion-classMark I-classMark II-classWaverider-class
Submarine Classes Cousteau-class
Maintenance Classes Inspection Pod (ENT) • Workbee