This is a list of auxiliaries of the United States Navy. It covers the various types of ships that support the frontline combat vessels of the United States Navy. Ship status is indicated as either currently active [A] (including ready reserve), inactive [I], or precommissioning [P]. Ships in the inactive category include only ships in the inactive reserve, ships which have been disposed from US service have no listed status. Ships in the precommissioning category include ships under construction or on order. Crane Ships (AB) USS Kearsarge (AB-1), ex-BB-5 Colliers (AC) USS Hannibal (1898) USS Justin (1898) USS Leonidas (1898) USS Marcellus (1879) USS Merrimac (1898) USS Quincy (1918) USS Saturn (1898) USS Southery (1898) USS Sterling (1898) USS Vestal (AC-1), later AR-4 USS Ontario (AC-2), later AR-3 USS Jupiter (AC-3), later CV-1, AV-3 USS Cyclops (AC-4), lost March 1918 USS Vulcan (AC-5) USS Mars (AC-6) USS Hector (AC-7) USS Neptune (AC-8) USS Proteus (AC-9) USS Nereus (AC-10) USS Orion (AC-11) USS Jason (AC-12), later AV-2 USS Abarenda (AC-13), later AG-14 USS Ajax (AC-14), later AG-15 USS Brutus (AC-15) USS Caesar (AC-16) USS Nero (AC-17) Auxiliary Minelayers (ACM) Auxiliary Crane Ships (T-ACS) [A] [A] Gopher State-class [A] [A] Other classes [I] [I] , later X-Band Transportable Radar Ship (XTR-1) SS Pacific Tracker Auxiliary Aircraft Carriers (ACV) The Auxiliary aircraft carriers (ACV) were redesignated Escort aircraft carriers (CVE). Destroyer Tenders (AD) USS Dixie (AD-1) USS Melville (AD-2) USS Dobbin (AD-3) USS Whitney (AD-4) USS Prairie (AD-5) USS Panther (AD-6) USS Leonidas (AD-7) USS Buffalo (AD-8) USS Black Hawk (AD-9) USS Bridgeport (AD-10), ex-AR-2 Altair-class USS Altair (AD-11) USS Denebola (AD-12) USS Rigel (AD-13) Dixie-class USS Dixie (AD-14) USS Prairie (AD-15) USS Piedmont (AD-17) USS Sierra (AD-18) USS Yosemite (AD-19) Cascade-class USS Cascade (AD-16) Hamul-class USS Hamul (AD-20) USS Markab (AD-21) Klondike-class USS Klondike (AD-22) USS Arcadia (AD-23) USS Everglades (AD-24) USS Frontier (AD-25) Shenandoah-class USS Shenandoah (AD-26) USS Yellowstone (AD-27) USS Grand Canyon (AD-28) USS Isle Royale (AD-29) USS Great Lakes (AD-30) USS Tidewater (AD-31) USS New England (AD-32) USS Canopus (AD-33) USS Arrowhead (AD-35), canceled USS Bryce Canyon (AD-36) Alcor-class USS Alcor (AD-34), ex-AG-34 Samuel Gompers-class USS Samuel Gompers (AD-37) USS Puget Sound (AD-38) Yellowstone-class USS Yellowstone (AD-41) USS Acadia (AD-42) USS Cape Cod (AD-43) USS Shenandoah (AD-44) (AD-45) - canceled unnamed Degaussing Ships (ADG) Ammunition Ships (AE) USS Pyro (AE-1) USS Nitro (AE-2) Major General Henry Gibbins (AE-7), ex-ID-3661,