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::Lieutenant commander

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A US Navy lieutenant commander's sleeve/shoulder insignia
Module:WPMILHIST Infobox style|header_bar}}|
Navies Armies Air forces
Module:WPMILHIST Infobox style|header_bar}}| Commissioned officers
Admiral of
the fleet
Marshal or
Field marshal
Marshal of
the air force
Admiral General Air chief marshal
Vice admiral Lieutenant general Air marshal
Rear admiral Major general Air vice-marshal
Commodore Brigadier or
Brigadier general
Air commodore
Captain Colonel Group captain
Commander Lieutenant colonel Wing commander
Lieutenant
commander
Major or
Commandant
Squadron leader
Lieutenant Captain Flight lieutenant
Sub-lieutenant Lieutenant or
First lieutenant
Flying officer
Ensign Second
lieutenant
Pilot officer
Midshipman Officer cadet Officer cadet
Module:WPMILHIST Infobox style|header_bar}}| Enlisted grades
Warrant officer or
Chief petty officer
Warrant officer or
Sergeant major
Warrant officer
Petty officer Sergeant Sergeant
Leading seaman Corporal Corporal
Seaman Private Aircraftman
Naval officer ranks
Flag officers:

Admiral of the fleetFleet admiralGrand admiral
AdmiralGeneral admiral
Vice admiralSquadron vice-admiral • Lieutenant admiral
Rear admiralCounter admiralDivisional admiral
CommodoreFlotilla admiral

Senior officers:

CaptainCaptain at seaCaptain of sea and warShip-of-the-line captain
CommanderFrigate captain
Lieutenant commanderCorvette captain

Junior officers:

Captain lieutenantLieutenantShip-of-the-line lieutenant
Frigate lieutenantLieutenant (junior grade)Sub-lieutenant
Corvette lieutenantEnsign
Midshipman

Lieutenant commander (also hyphenated lieutenant-commander and abbreviated Lt Cdr,<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> LtCdr.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> or LCDR<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>) is a commissioned officer rank in many navies. The rank is superior to a lieutenant and subordinate to a commander. The corresponding rank in most armies (armed services) and air forces is major, and in the Royal Air Force and other Commonwealth air forces is squadron leader.

The NATO rank code is mostly OF-3.<ref name='stanag'>{{#invoke:citation/CS1|citation |CitationClass=book }}</ref>

A lieutenant commander is a senior department officer or the executive officer (second-in-command) on many warships and smaller shore installation, or the commanding officer of a smaller ship/installation. They are also senior department officers in naval aviation squadrons.


Lieutenant commander sections
Intro  Etymology  Origins  United Kingdom  Canada  United States  Pakistan  Ireland  Other countries  References  

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