Lieutenant (jg)

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A lieutenant, junior grade or its Commonwealth equivalent, sublieutenant, is the second lowest rank of commissioned officer in most naval organizations.

Contents 1 Historical Context 2 Starfleet Usage 3 Other Usage 3.1 Bajoran Defense Force Navy 3.2 Rikon Defense Force 4 See Also

Historical Context

In the British Royal Navy, a passed midshipman awaiting promotion often elected to become a master's mate, normally an experienced petty officer who assisted the sailing master. Though formally the rating did not lead to promotion to lieutenant, master's mates were paid more than any other rating and were the only ratings allowed to command any sort of vessel. A midshipman who became a master's mate got an increase in pay from £1 13s 6p to £3 16s per month, but initially reduced his chances at a commission. Over time, however, service as a master's mate became a normal part of the path to a commission. The situation caused some confusion during the last part of the 18th century, when two parallel roles - master's mates trying to become masters, and former midshipmen working toward a commission - held the same title and responsibilities aboard ship.

By the first years of the 19th century, the prefix "master's" was dropped for passed midshipmen, to distinguish them from master's mates in the navigator's branch. In 1824 two further grades were also introduced, consisting of master's assistants and second-class volunteers. These corresponded to midshipmen and first-class volunteers respectively in the executive line. From this point, passed midshipmen had the rating master's mate, abbreviated as mate, and prospective masters had the rating master's assistant. These changes helped eliminate the confusion caused by the mingling of midshipmen in the navigator's branch.

In 1838 a Royal Commission, presided over by the Duke of Wellington, recommended the institution of the rank of mate as an official step between midshipman and lieutenant. In 1861 mate was abolished in favor of sub-lieutenant.

Starfleet Usage

In Starfleet, a lieutenant junior grade (or as it is styled 'lieutenant (jg)') is senior to an ensign by immediately subordinate to a full lieutenant. Most lieutenants, junior grade, have been on active duty for at least six months as an ensign before becoming eligible for promotion consideration by the Starfleet Bureau of Personnel.

Starfleet used the following rank insignia to denote this rank of officer:

Period	2410-Present	2373-2410	2368-2373	2365-2373	2352-2365	2280-2352	2270-2280	2255-2270
Insignia

Other Usage

Some military and paramilitary groups use the rank "lieutenant (jg)" in their organizations:

Bajoran Defense Force Navy

The Bajoran Defense Force Navy uses the alternative equivalent, Sublieutenant:

Grade	Rank	Insignia (Sleeve)
O-2	Sublieutenant

Rikon Defense Force

Grade	Rank	Insignia (Shoulderboard)
O-2	Lieutenant (jg)

See Also

• Starfleet Ranks

Starfleet Rank Structure
Grade	Enlisted		Training	Officer
1	PVT	CREC	MID4	2LT	ENS
2	PFC	CAPP	MID3	1LT	LTJG
3	LCPL	CRMN	MID2	CPT	LT
4	CPL	PO3	MID1	MAJ	LCDR
5	SGT	PO2	OC	LTCOL	CDR
6	SSGT	PO1		COL	CAPT CDRE
7	GYSGT	CPO		BRGEN	BADM
8	MSGT	SCPO		MAJGEN	RADM
9	MGYSGT SGTMAJ	MCPO		LTGEN	VADM
10	SGTMAJOS	MCPOS		GEN	ADM
11					GADM