Ohio Class

From Bravo Fleet Infobase

Federation Faction

Starfleet Starfleet

Kelvin wall01 1920.jpg
Class Information

Explorer / Research vessel



Date Entered Service:


Ship's Complement
Crew Complement:


Overall Dimensions


Warp Performance
Cruising Speed:

Warp 5

Energy Weapons:
Torpedo Launchers:



Deflector Shields

Auxiliary Craft

Class Description

Aft view

Ships of the Ohio class have an hull arrangement. Not only is the Ohio Class one of the few single nacelle ship classes used by Star Fleet but with the engineering hull located above the saucer with the lone nacelle below the saucer ships of this class are easily recognizable in a fleet of ships.

These ships are equipped with a full array of sensor systems for data gathering and science and medical labs to support research and investigations undertaken by the crew. While the ships are primarily ships of exploration and research they are capable of combat operations. Like the Walker Class the Ohio is equipped with four phaser banks and twelve phase cannons, equally divided between the dorsal and ventral surfaces of the saucer. They are also equipped with torpedo two torpedo launchers with one covering the forward firing arch and the other the aft firing arch. The ships are also equipped with Deflector Shields to provide protection of enemy weapons fire or impact of a solid object.

The design that would become the Ohio class was first proposed in 2212 but the single nacelle design had no secondary hull design and the nacelle itself was over sized and computer simulations showed the warp field generated by the nacelle was unstable giving the ship the tendency to want to flip over its own nose when it was operating as speeds over warp 5. During the redesign phase two proposals were submitted for review. The first proposal saw the single large nacelle be replaced with two smaller nacelles giving the ship an arrangement closer to what many considered "Federation Normal". The second design added a secondary hull above the saucer. When asked about this decision the lead engineer who came up with the second proposal replied. "Well if she wants to be upside down, then let her be upside down." Both proposals solved the instability while at warp but the increased interior volume of the second proposal allowed for expanded facilities for all departments and therefore was the design that was approved.

Construction was stated in 2216 at the San Francisco Fleet Yards. In 2219 the USS Ohio underwent a shake down cruise within the inner systems of the Federation. During this fight the ship still displayed problems with warp flight, Primarily maneuvering while at warp. The ship returned to dry dock and the after examining flight data the Off Axis Field Controller was resigned and after a successful flight in 2223 the Ohio was officially commissioned. With the commissioning of the Ohio an order of six ships of this class was placed by Star Fleet Command.

At first the Ohio Class was tasked with exploration on the fringes of Federation Space and even beyond Federation borders, with two of the six ships lost in the line of duty. In 2240 The USS Constitution was Commissioned and as ships of this new, and larger class, took over the bulk of exploration beyond federation borders. By 2250 the last Ohio Class ship operating outside the Federation was recalled to Federation space were the Ohio Class usefully operated as long term research vessels that could linger in a single star system

USS Kelvin on deep space patrol

At the time of the commissioning of the USS Ohio the relations between the Federation and the Klingon Empire started disintegrating leading to the battle of the Binary Stars in 2256. During the war that resulted from this battle the Ohio Class saw action in combat with three of the remaining four ships destroyed. Star Fleet Command ordered another ten Ohio class ships to make up losses due to the war. Once the war was concluded the ships of the Ohio Class were pressed into service as patrol craft both within Federation Space but also along the borders.

As the number of ships in service increased the Ohio Class vessels were once more tasked with long term research missions. By the 2380 Star Fleet numbers were once more at prewar levels and with newer classes such ans the Oberth Class proving themselves capable and more cost effective alternatives it was becoming clear that the Ohio Class was nearing the end of its operational life time.

In 2305 Star Fleet Command started decommissioning ships of the Ohio Class with the last ship in service decommissioned in 2310. Most ships were broken down for recycling into raw materials but a handful were sold of to civilian organizations. The last Ohio Class known to be operating under Civilian authority was recorded as destroyed in 2321.


Basic Information
  • Role: Explorer / Research vessel
  • Dimensions: 224 meters (L) x 112 meters (W) x 56 meters (H)
  • Decks: 14
  • Expected Duration: 80 years
  • Time Between Resupply: 2 years
  • Expected Refit Cycle: 5 years
Crew Complement
  • Total Crew: 120
    • 15 Officers
    • 100 Enlisted
  • Number of Civilians: 5
  • Emergency Capacity: 310
  • Thrusters: RCS Thrusters
  • Sublight Speed: 1/3 the speed of light
  • Warp Speed
    • Cruising Speed: Warp 5
    • Maximum Warp: Warp 6
    • Emergency Warp: Warp 7 (for 12)
  • Slipstream Capable?:
Offensive Systems


  • 2 dual emitter phaser banks mounted to the dorsal surface of the primary hull
  • 2 dual emitter phaser banks mounted to the ventral surface of the primary hull
  • 6 dual emitter phase cannon turrets mounted to the dorsal surface of the primary hull
  • 6 dual emitter phase cannon turrets mounted to the ventral surface of the primary hull


  • 1 forward torpedo launcher
  • 1 aft torpedo launcher


Defensive Systems
  • Shields: Deflector Screens
Primary Systems
  • Computer Systems:
  • Duotronic Computer Systems
  • Transporters:
  • 4 six-person transporters
  • 2 cargo transporters
    • Transporter Range: 45,000 Kilometers
  • Sensor Range: 15 light years
  • Communications Range: 15 light years
Auxiliary Craft



  • Shuttles: 4
  • Workbees: 2

Other Notes


  • Captain’s ready room
  • Crew mess hall
  • Crew Recreation facility

Deck Listing

Deck Details/Specifications of Deck
Deck 1
  • Upper long-range sensor emplacements
  • Upper RCS thruster emplacements
Deck 2
  • Shuttle bay upper level
  • Shuttle bay control room
  • Shuttle bay observation gallery

Deck 3

  • Deflector field generator lower level
  • Deflector monitoring
  • Shuttle bay main level
Deck 4
  • Docking ports 1 (port) and 2 (starboard)
  • Deflector field generator lower level
  • Shuttle storage and maintenance
  • Shuttle bay door equipment
Deck 5
  • Lower long-range sensor emplacements
  • Engineering support labs
  • Transporter rooms 1 and 2
Deck 6
  • Fabrication facilities
  • Enlisted Quarters
  • Transporter machinery rooms 1 and 2
Deck 7
  • Chief Security/Tactical officers office
  • Ships brig
  • Ship’s armory
Deck 8
  • Main Bridge
  • Captain’s ready room
  • Main conference lounge
Deck 9
  • Docking ports 3 (port) and 4 (starboard)
  • Cargo bays 1 through 8
  • Cargo transporters 1 and 2
  • Chief Science Officer’s office
  • Science labs
  • Phase cannons 1 through 3 (port) and 4 through 6 (starboard)
  • Phaser banks 1 (port) and 2 (starboard)
  • Transporter Rooms 3 and 4
Deck 10
  • Officers quarters
  • Sick Bay
  • Cargo transporter machinery rooms 1 and 2
  • Chief Science Officer’s office
  • Medical Labs
  • Crew recreation facility
  • Transporter machinery rooms 3 and 4
Deck 11
  • Impulse engines
  • Main engineering
  • Chief Engineers office
  • Deuterium storage
  • Guest quarters
  • Enlisted Quarters
  • Crew mess hall
  • Ship’s galley
  • Main RCS thruster implements
Deck 12
  • Lower sensor dome
  • Enlisted Quarters
  • Life support systems
  • Waste reclamation facilities
  • Phase cannons 7 through 9 (port) and 10 through 12 (starboard)
  • Phaser banks 3 (port) and 4 (starboard)
Deck 13
  • Forward torpedo tube
  • Aft torpedo tube
  • Torpedo storage upper level
  • Antimatter pods
Deck 14
  • Nacelle access
  • Nacelle systems monitoring Torpedo storage lower level
Official Federation Starship Specifications
Starship Classes 24th Century AkiraAmbassadorAntaresAresArgonautAscensionAtlantiaAquariusCardiffCerberusCentaurCenturyChallengerCheyenneConcordeDefiantDiligentDumontElysionExcaliburFreedomGalaxyGalaxy RefitInsigniaIntrepidKelvinLunaNew OrleansNebulaNorwayNovaOdysseyOlympicOnimaruPathfinderPrometheusRavenReliantRhode IslandRoninSaberSovereignSpringfieldSteamrunnerTitanVestaWallaceWildcat
Starship Classes 23rd Century AkulaCardenasConstellationConstitutionConstitution (Refit)CrossfieldEngleExcelsiorExcelsior (Refit)HooverMageeMalachowskiMirandaNimitzOberthOhioShelleyShepardSoyuzSydneyWalker
Starship Classes 22nd Century ColumbiaDaedalusFranklinNXNX Intrepid Yorktown