Diogenes-Class Long-Range Exploration Cruiser

General Specifications:

Crew Complement:             980
Decks, Primary Hull:          18 (incl.  4 in connecting dorsal)
Decks, Secondary Hull:        22
Turbolifts:                    2 discrete systems, 6 cars in each
Holodecks:                     6
Shuttlebays:                   1
Support Craft:                 1 yacht, 4 shuttles
Transporters:                  7 personnel, 4 cargo
Top Cruising Speed:              Warp 9.3
Top Emergency Speed:             Warp 9.6


USS DIOGENES, NX-4000 (decommissioned)
USS ODYSSEUS, NCC-1789 (active)
USS GALILEO, NCC-4901 (active)
USS CALYPSO, NCC-5276 (active)


The Diogenes Class was designed by Starfleet Engineering as a means for the return to the exploratory nature of Starfleet. For several years prior, Starfleet had remained more concered with defense and battle-readiness. The Diogenes Class starships were envisioned as a return to Starfleet and the Federation's true mission of peaceful exploration. Creating ships specially designed for scientific exploration would still allow for other ships to protect and defend the UFP.

The first ship constructed was the prototype USS DIOGENES (NX-4000), commissioned on SD 60105. After an extensive testing period, the class was deemed ready for service to the Fleet and given final approval. (The DIOGENES was later decommissioned following her near destruction at the hands of suspected Cardassian agents.)

The first production starship of the Diogenes-class was the USS ODYSSEUS (NCC-1789), commissioned on SD 60531.


The Diogenes Class is not primarily a fighting ship, rather a deep-space, first contact vessel. However, due to the hazardous nature of exploration, it carries a large variety and number of defensive weapons. Also, these ships are generally better equipped for science and analysis than most other types. Labs abound, and the computer is larger, faster, and more versatile than any other ship's computer. In addition, an extra Science station is located in Main Engineering. Diogenes Class Cruisers are only slightly smaller than their Galaxy Class counterparts, but differ considerably in design. The supporting dorsal is connected at the front of the primary hull, rather than the rear, with the warp nacelles directly below on either side of the secondary hull, creating a more vertical than horizontal configuration. Also, the primary hull is more of an ovoid, or "squashed globe," than it is a saucer.

These ships are specifically designed for long-range missions, often going years between re-supply stops at a Starbase or planet. They are also quite fast, with a maximum speed of warp 9.6, and highly maneuverable, having increased numbers of impulse "jets" positioned at several angles.

The Diogenes Class Starship is not designed to separate; however, on SD 61105, the USS TSUNAMI (since lost) performed an emergency separation. The facilities of a Starbase were required for reconnection.