Affiliation United Federation of Planets / Starfleet
Year Beginning Service 2370
Design Specifications
Ship Type Cruiser
Length 415 meters
Beam 170 meters
Height 113 meters
Crew 141
Tactical Specifications
Armament 13 Type XII Collimated Phaser Array, 3 Photon Torpedo Launchers (All Forward)
Defenses Deflector Shields, Ablative Hull Armor
Engineering Spefications
Top Speeds Warp 9.0 (Standard Cruising), Warp 9.8 (Maximum Cruising), Warp 9.99 (Maximum Attainable)
Impulse Engines Two Impulse Systems


This class' prototype, the USS Prometheus, was launched from the Beta Antares Ship Yards in the Antares sector on stardate 50749.5. At the time of its launch, the Prometheus was so highly classified that only four people in all of Starfleet were trained to operate the prototype. (VOY: "Message in a Bottle")

In an alternate timeline, vessels of the Prometheus class were among the Federation fleet that engaged the forces of the Sphere Builders during the Battle of Procyon V in the 26th century. (ENT: "Azati Prime")

Technical Data

Propulsion system

Capable of attaining speeds exceeding warp 9.9, the warp drive on board the Prometheus-class was designed to go faster than any other class in the fleet (at warp speeds only as the USS Voyager has exceeded this ship's speed using temporary lasting Borg transwarp modules and the experimental Slipstream drive).

Defensive systems

The Prometheus-class was designed with an unprecedented level of automation, and, combined with its advanced tactical systems, was one of the most powerful combat ships in the Alpha Quadrant. The primary battle systems on board the Prometheus included regenerative shielding, ablative hull armor, as well as phasers, and photon torpedoes.

A unique feature included in the Prometheus design was the multi-vector assault mode, which allowed the ship to split into three semi-independent sections that could each deliver massive force against an enemy target. All three sections were warp-capable. In this mode, the Prometheus could easily disable a Nebula-class at warp, or a D'deridex-class on the field of battle. (VOY: "Message in a Bottle")

Interior Design

Main Bridge

The fact that the Prometheus class was mainly designed for combat was reflected in the design of its bridge. The bridge was obviously designed with efficiency in mind, providing the commanding officer with visual access to all major stations when seated in the command chair. Directly in front of the captain's chair, sunken down with three steps, was the location of the operations officer and conn stations, combined in one large console. Both officers shared an unobstructed view of the main viewscreen with the commanding officer. All other stations were mounted against the wall, running around the entire length of the room. Directly aft of the captain's chair was the master systems display, with Engineering and Tactical stations to the left and right, respectively, and to the captain's left and right, beyond these stations, were doors that both provided access to the turbolift system. (VOY: "Message in a Bottle")

Ships Using This Class in Star Trek: Second Fleet Online

There are no ships in ST:SFO using this class currently.


Specifications for the ship: Memory Alpha and Ships of the Starfleet, Volume I

Pictures: From Paramount and CBS through Memory Alpha
USS Prometheus, 2374 (fore)

Prometheus Class Cruiser

Prometheus class, aft

Prometheus Class Cruiser, Aft View