Neptune class

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Class Information
Expected Duration: 20 years
Resupply Interval: 1 year
Refit Interval: 5 years
Type: Corvette
Role: Escort/Patrol
Length: 127 meters
Width: 115 meters
Height: 18 meters
Decks: 4
Warp Rating
Cruising Speed: Warp 1.5 (TOS)
Maximum Speed: Warp 1.7 (TOS)
Emergency Speed: Warp 2.0 (TOS)
Officers: 10
Enlisted: 25
Auxiliary Craft
Tactical Systems
Torpedo Launchers:
Torpedo Compliment:
Other Systems:
[ Source ]

The Neptune-class was a type of United Earth starship in Starfleet service during the mid-22nd century.


General Overview

Originally developed for planetary defense, survey, and escort roles within the Earth Starfleet of the early to mid twenty-second century, the four deck 'warp delta' design was an evolution of the earlier NA-class S.S. Emmette solar explorer and the Lockheed Martin X-33 Venture Star orbiter spacecraft of the previous century. A predecessor of the NX-class, the Neptune featured nuclear fusion power and was capable of achieving speeds up to warp two. The ship was initially armed with plasma cannons which were upgraded to phase cannons in the 2150s.

Two ships of this class came to the assistance of the Enterprise NX-01 in 2153 when, on its return to Earth, the Enterprise came under assault from a Klingon warship. Together with the starship Intrepid, the four Starfleet vessels managed to overwhelm the Klingons and drive them off.

Technical Data

Physical Arrangement

Deck Listing

A Deck:
B Deck:
C Deck:
D Deck:

Starships Commissioned

Neptune-class Starships

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