Terran Starfleet Ranks

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Mirror Universe
(Dominion of the Terran Empire)




Specialist 2nd Class

Specialist 1st Class

Chief Specialist

Noncommissioned Officers

Petty Officer

Chief Petty Officer

Senior Chief Petty Officer

Master Chief Petty Officer

Warrant Officers




Commissioned Officers

In the mid-23rd century, stripes were 2cm wide, gold, and located 6cm from the cuff.[1]

Junior Officers


Ensigns served as junior officers in a variety of duty stations both aboard ship and at starbases and ground installations.[2]

Lieutenant, junior grade

Junior grade Lieutenants aboard ship were responsible for the direct operation of non-bridge duty stations under the supervision of senior personnel. Bridge operations involving navigation and helm control were also assigned to junior grade Lieutenants under the supervision of senior officers. At ground installations, junior grade Lieutenants typically acted as station-keepers under the direction of a senior Lieutenant.[2]


Lieutenants served on Bridge command crews and as specialists aboard ships. In the absence of senior officers, Lieutenants also commanded special away teams off ship. Away from the Bridge, Lieutenants served as department heads. At starbases and ground installations, Lieutenants were in charge of specific duty stations, generally supervising from three to twelve junior officers and enlisted personnel.[2]

Line Officers

Lieutenant Commander

Officers of Lieutenant Commander rank functioned as assistant department heads or specialists. Senior Bridge officers in charge of specific watch commands were usually Lieutenant Commanders. In vessels of Class V or below, a Lieutenant Commander was frequently assigned as first officer to a ship's captain of Commander rank. Staff officers of Lieutenant Commander rank served as aides to senior officers and could, on occasion, represent their superiors on special assignments away from normal duty stations.[2]


Commanders generally headed up a department aboard ship. A senior flag Commander could have a specialized position, such as first officer or science officer. Commanders also served as ship's captain on vessels below Class V, receiving the technical distinction of Brevet Captain, which bestowed a captain's authority only aboard ship. Staff officers holding Commander rank typically served as aides to senior officers or as special duty personnel for inspection of civilian installations, liaison with native life forms, or provided administrative support.[2]


Captains commanded Starfleet vessels above Class V. Captains also directed the day-to-day operational deployment and tactical command of support craft, often without the direct influence of senior commanders. Officers with technical skills in areas such as engineering, science, medicine, or security could also receive Captain's rank and usually served aboard larger vessels. Staff officers of Captain rank typically served in deputy positions on starbases or similar ground assignments, as aides to flag officers or technical advisors to senior Federation personnel.[2]

Flag Officers


Flag officers had generally served in a variety of vital areas, including Exploration, Military Operations, and Fleet Command. Flag officers of Commodore rank commanded Tactical Operations Groups of three to six vessels. A Commodore could also serve as a starbase commander or fleet inspector, reporting to a Rear Admiral.[2]


The rank of Admiral was the highest in Starfleet. Admirals were responsible for the deployment of Starfleet vessels in active operations, particularly fleet operations along the border zones between the Federation and foreign governments. Admirals were also responsible for exploration and training craft, as well as Federation colonization efforts. Staff positions encompassed a variety of roles, ranging from diplomatic and scientific to traditional planning and organizational tasks within Starfleet. Separate Admiralty Commands included directorship of Starfleet training operations, diplomatic liaisons with Federation member worlds, and negotiations with newly-discovered worlds. They also included a host of military positions: contingency strategy, weapons research and development, and scientific systems deployment aboard Starfleet vessels.[2]

Notes and References