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Lieutenant commander

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Lieutenant commander is a commissioned officer rank in many naval services and space forces, most notably the Federation Starfleet.

HistoryEdit

The etymology of the rank "lieutenant commander" comes from the early 18th century when senior lieutenants of the United States Navy were given command of smaller support vessels and referred to as the "lieutenant commanding" the vessel. This rank name became official in both the United States Navy and the British Navy by the late 1870s as "lieutenant commander." It survives today among the naval-driven traditions of the Federation's Starfleet.

StandingEdit

A lieutenant commander is a mid-level line officer rank, a grade higher than a lieutenant and a grade below commander in most rank structures, although some organizations may differ or omit this rank. The lieutenant commander rank is roughly equivalent with the authority of a major of military forces.

In the Romulan Star Navy, the rank of subcommander (Romulan language erei'riov) is roughly equivalent to a Starfleet lieutenant commander, although Romulan subcommanders are often first officers and fill other positions with standings approximate of Starfleet commanders. (TOS novel: The Romulan Way; TOS episode: "The Enterprise Incident")

In the Cardassian language, dalin is a Cardassian officer rank title which, in translation to Federation Standard, is approximately equivalent to a lieutenant commander. (TLE - Terok Nor novel: Day of the Vipers)

The common title of address for a lieutenant commander is "commander," when the generic "sir" is otherwise inappropriate. This usage is similar to how a lieutenant colonel of a military unit is addressed simply as "colonel".

A lieutenant commander in Starfleet may be assigned as a department head or senior staff member of a larger command such as a capital ship or starbase. Some examples include Chief Engineer Montgomery Scott and Chief Medical Officer Leonard McCoy of the USS Enterprise, Operations Manager Data and Chief Engineer Geordi La Forge of the USS Enterprise-D, Tactical Officer Tuvok of the USS Voyager or Chief Science Officer Jadzia Dax of Starbase Deep Space 9. (TOS; TNG; VOY; DS9)

A lieutenant commander could also serve as the commanding officer of a smaller starship or the first officer of a mid-size vessel. Jadzia Dax commanding the USS Defiant and First Officer Chakotay of Voyager filled these roles, respectively. On larger vessels, a lieutenant commander could also fill a role as second officer or third officer, such as the aforementioned positions of Scotty, Data, Tuvok and Dax on their respective assignments. (DS9, VOY, TOS, TNG)

In the Klingon Defense Force, the rank of lieutenant commander is represented by a rank insignia of a stylized, tri-segmented, "z" shape, within a circle. (FASA RPG module: The Klingons: Star Fleet Intelligence Manual)

Lieutenant commander insigniaEdit

Starfleet lieutenant commmander insignia
era general wear command division operations division sciences division
command tactical/military flight-engineering
(admin, pilot, engineer)
security special services sci-ops
(ops, sci & tac ops)
medical
Earth Starfleet ranks Earth cmd ltcmdr Earth ops ltcmdr Earth sci ltcmdr
Federation Starfleet ranks (2160s) Sec ltcmr 2160s Cmd ltcmr 2160s Eng-ops ltcmr 2160s Sci ltcmr 2160s
Federation Starfleet ranks (2230s) 2230s cmd lcdr 2230s yel lcdr 2230s gray lcdr
Federation Starfleet ranks (2240s)
(insignia for all officer grades)
2240s gray officer 2240s gold officer 2240s red officer 2240s coral officer 2240s blue officer
Federation Starfleet ranks (2250s)
(insignia for all officer grades)
Gray officer sleeve 2250s conn officer sleeve 2250s cmd green officer sleeve 2250s red ops sleeve 2250s ops officer sleeve 2250s sci officer sleeve
Federation Starfleet ranks (2260s) 2260s ltcmdr Yel Lt Cmdr 2266 2260s cmd green ltcmdr Red Lt Cmdr 2266 2260s cmd beige ltcmdr Blu Lt Cmdr 2266
Federation Starfleet ranks (2270s) 2270s lcdr sleeve 2270s lcdr sleeve alt 2270s cmd lcdr 2270s helm lcdr 2270s eng lcdr 2270s sec lcdr 2270s sci lcdr 2270s med lcdr
Federation Starfleet ranks (2270s-2350s) 2270s-2350 lcdr sleeve 2270s-2350 cmd ltcmdr 2270s-2350 mil lcdr 2270s-2350 flight lcdr 2270s-2350 sec lcdr 2270s-2350 sup lcdr 2285 Lt Cmdr Ep Grey 2270s-2350 med lcdr
Federation Starfleet ranks (2350s-2366) 2350s gray lt cmdr 2350s cmd ltcmdr 2350s ops ltcmdr 2350s sci ltcmdr
Federation Starfleet ranks (2366-2373) 2350s gray lt cmdr Red Lt Cmdr 2364 Red Lt Cmdr 2371 Yel Lt Cmdr 2364 Yel Lt Cmdr 2371 Blu Lt Cmdr 2364 Blu Lt Cmdr 2371
Federation Starfleet ranks (2370s-2380s) 2370s cmd ltcmdr Yel Lt Cmdr 2373 2370s sci ltcmdr
Federation Starfleet ranks (2386-2410) Red Lcdr 2400s Yel Lcdr 2400s Blu Lcdr 2400s
Federation Starfleet ranks (2800s)
(Built to Commander)
2800s cmd cmdr 2800s ops cmdr 2800s sci cmdr

Alternate lieutenant commander insigniaEdit

Starfleet alternate lieutenant commander insignia
era command division operations division sciences division
Federation Starfleet ranks (2250s) alt 2250s alt cmd ltcmdr 2250s alt ops ltcmdr 2250s alt sci ltcmdr
Federation Starfleet ranks (2386-2410) alt Alt future cmd ltc Alt future ops ltc Alt future sci ltc

ConnectionsEdit

Enlisted ranks Commissioned ranks Flag ranks
Earth SF CREW PO2

PO1

CPO

SCPO


MCPO

ENS LT CMDR CAPT

FCAPT


VICE CDORE

CDORE RADM/2ADM VADM/3ADM 4ADM FADM/5ADM

GADM

Starfleet & SFMC ENS JG

ENS


ENS 1C

LT JG LT LT CMDR CDR CDORE

1ADM

PVT CPL SGT

MASTER SGT

SUBLT

2ND LT

1ST LT CAPT MAJOR LT COL COL BRIG GEN
Klingon Defense Force
naval & marine
ENL (bekk) PO/LDR (DevwI')

CPO/TROOP LDR (QaS-DevwI')

ENS (lagh) LT JG LT (Sogh) LT CMDR CMDR (la') CAPT (HoD) CDORE (totlh) ADM ('aj) FADM
ENL (mang) 2C

ENL (mang) 1C


LCPL

CPL (Da') SGT (bu')

SGT MAJ

LT JG LT (Sogh) CAPT MAJ LT COL COL BRIG ('ech) MAJ GEN GEN (Sa')
Romulan naval
&
Tal Shiar
(where known)
UHLAN DECURION ANTE CENTURION (erein) SUBLT SUBCMDR (erei'riov) CMDR (rh'iov) CMDR GEN (khre'riov) GENERAL (Enriov)
LT MAJOR TRIBUNE COLONEL
SR CENTURION (enarrain) ADMIRAL
EQUITORIAM SECONDAM TRINAM CENTURION (Arrain) LEGATE FIELD PRIMUS PRIMUS GRAND PRIMUS

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