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The Prometheus-class was a highly classified Federation starship designed for deep-space tactical assignments. It was one of the most advanced Starfleet vessels in operation during the latter half of the 24th century.


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")

Battle of Procyon V

A Prometheus-class starship at the Battle of Procyon V

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

The warp drive on board the Prometheus-class was designed to go faster at warp speeds than any other class of ship in the fleet at the time. It was capable of attaining speeds exceeding warp 9.9.

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 Template:ShipClass at warp, or a Template:ShipClass on the field of battle. (VOY: "Message in a Bottle"). While other starship classes had similar capabilities, like the Template:ShipClass with its saucer separation feature, generally the saucer section of such classes had no warp drive and limited weapons. (TNG: "Encounter at Farpoint", "The Arsenal of Freedom", "The Best of Both Worlds, Part II")

Additional systems

In addition to standard automation systems, the Prometheus-class design also featured holoemitters on every deck, which allowed the ship's Emergency Medical Hologram (Mark II) to access all areas of the ship (most EMHs were confined to sickbay only).

Primary controls for the ventilation system were located in Jefferies tube 17, which was located five decks up from sickbay. (VOY: "Message in a Bottle")

Interior design

Main Bridge

Prometheus class bridge

View of the Prometheus-class starship's 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 commissioned




Background information

The Prometheus class was designed by Star Trek: Voyager senior illustrator Rick Sternbach and rendered as a CGI model by Foundation Imaging. The Prometheus-class interiors were designed by Voyager production designer Richard James, using re-dressed portions of the re-created USS Excelsior bridge that James had made for "Flashback", the USS Voyager sickbay, and a number of new sets. One year later, the bridge set went on to again be redressed, for the Template:ShipClass USS Equinox.

Maximum speed

Dialogue in "Message in a Bottle" suggests that warp 9.9, the Prometheus was traveling at, was a speed too fast for any other ship in Starfleet to catch up with them before the ship crossed the neutral zone. This interpretation is confirmed in Star Trek Encyclopedia. According to Star Trek: Starship Spotter, however the actual maximum speed of the Prometheus-class was warp 9.99, which corresponds better with the idea of the Prometheus being the fastest ship in the fleet, since the Intrepid-class had been previously established as a ship capable of warp 9.975.


Rick Sternbach notes that the "Prometheus would come in at roughly 1,360 feet (414 meters) in length". (Star Trek: The Magazine Volume 3, Issue 11) A length of 414 meters was also shown on a page from an Eden FX manual. (Star Trek: The Magazine Volume 1, Issue 24)

Additional readings


In the DS9 relaunch series of novels Avatar, Book One and Book Two, a Prometheus-class starship named USS Cerberus served as Admiral William Ross's personal flagship, replacing the USS Bellerophon.

In the game Star Trek Online, the class is categorized as an "advanced escort", with sister classes named Cerberus, Hephaestus, and Phoenix. When the class was initially added to the game, it did not feature multi-vector assault mode. This was added at a later date via a "multi-vector assault module" console and also included an alternate ship configuration.

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