List of yard and district craft of the United States Navy

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Wanamassa (YTB-820)
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This is a list of yard and district craft of the United States Navy. It covers the various types of craft and ships that support the bases and harbors of the United States Navy. The hull classification symbols for these craft begin with (Y).

Contents

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.

Historical overview

This list demonstrates that the US Navy constantly recycles and repurposes its small craft for new roles. Some craft on this list have had as many as six such conversions in their history. Some of these conversions have been surprising from an environmental viewpoint, such as the conversion of fuel oil barges into water barges. Some conversions have been surprising from an economic viewpoint, such as the simultaneous conversions of open barges to covered barges during the conversions of covered barges to open barges, which can be justified only by relatively high transportation costs.

The District auxiliary, miscellaneous (YAG) designation has been used as a cover for at least two ships employed in classified tests of biological, chemical, and nuclear weapons (aka WMD).

Some of these vessels have held prior or later classifications as unclassified miscellaneous (IX), or more rarely as auxiliaries miscellaneous (AG, T-AG).

Ash barges (YA)

District auxiliary, miscellaneous (YAG)

For similar lists of 'miscellaneous' ships see

List of auxiliaries of the United States Navy § Miscellaneous ships (AG, T-AG)

and

List of unclassified miscellaneous vessels of the United States Navy (IX)

Radar picket ships (YAGR)

Guardian-class radar picket ship

All Guardian-class ships were reclassed as AGR in 1958; they were originally intended to be classed as District auxiliaries, miscellaneous (YAG) - see YAG-41 through YAG-44 - but this was not done.

Open barges (YC, YCK)

The YCK hull symbol denoted a wooden barge.

Coaling derricks (YCD)

Car floats (YCF)

Aircraft transportation barges (YCV)

Floating derricks (YD)

Degaussing craft (YDG)

Diving tenders (YDT)

Ammunition barges (YE)

Covered barges (YF, YFN)

YF barges are self-propelled, YFN barges are not. [51]

Hull numbers 1 through 256 were built before World War II. [52]

Hull numbers 257 through 1153 were built during World War II. [53] [54]

Hull numbers starting with 1154 were built after World War II. [57]

Yard ferry boats or launches (YFB)

Two YFB vessels are currently in use at Guantanamo Bay Naval Base: Leeward (YFB-92) and Windward (YFB-93) [58] [59]

Yard floating drydocks (YFD)

All YFDs were reclassified as AFDMs in 1945 (see List of auxiliaries of the United States Navy § Medium auxiliary floating dry docks (AFDM)).

Large covered barges, non-self propelled (YFNB)

Dry dock companion craft, non-self propelled (YFND)

Barges, special purpose, non-self propelled (YFNX)

Floating power barges (YFP)

Refrigerated covered barges (YFR, YFRN)

YFR barges are self-propelled, YFRN barges are not.

The YFR and YFRN hull numbers are part of the YF and YFN sequence.

Range tenders (YFRT)

Torpedo transportation barges (YFT)

Harbor utility craft (YFU)

Most if not all of the early YFU vessels were LCUs which had been retired from amphibious duties due to age.

YFU-71-class: 11 "Skilak" lighters purchased as Commercial off-the-shelf for the Vietnam War [62]

Garbage barges (YG, YGN)

YG barges are self-propelled, YGN barges are not.

Ambulance boats / Small medical support vessels (YH)

Houseboats (YHB)

Salvage lift craft, heavy (YHLC)

Heating scows (YHT)

Open landing barges (YLA)

Salvage lift craft (YLC)

Salvage lift craft, light (YLLC)

Dredges (YM, YMN)

YM dredges are self-propelled, YMN dredges are not.

Mud scows (YMD)

Salvage lift craft medium (YMLC)

Motor mineplanters (YMP)

Auxiliary motor mine sweepers (YMS)

Yard motor tugs (YMT)

Yard net tenders (YN)

All specially-built yard net tenders were reclassified in 1944 as auxiliary net laying ships, see List of auxiliaries of the United States Navy § Net laying ships (AN) for the reclassification result. The 24 impressed tugboats were reclassed as Net tender tugs (YNT), later some as tugboats (YTB or YTL).

Aloe-class net laying ships

The 24 impressed commercial tugboats.

Ailanthus-class net laying ships

Cohoes-class net laying ships

Net gate craft (YNG)

Net tender tugs (YNT)

All these ships were former Yard net tenders (YN)

Fuel oil barges (YO, YON)

YO barges are self-propelled, YON barges are not.

Gasoline barges (YOG, YOGN)

YOG barges are self-propelled, YOGN barges are not.

Oil storage barges (YOS)

Patrol craft (YP)

During World War II many private fishing and United States Fish & Wildlife Service (US FWS) vessels were pressed into naval service as patrol craft. A small number would be modified for delivering refrigerated food to small isolated island bases, most without any reclassification.

Later purpose-built yard patrol craft would be assigned mainly to train US Naval Academy and US Merchant Marine Academy midshipmen.

Floating pile drivers (YPD)

Pontoon storage barges (YPK)

Floating workshops (YR)

Repair and berthing barges (YRB)

Repair, berthing and messing barges (YRBM)

Submarine rescue chambers (YRC)

Floating dry dock workshops, hull (YRDH)

Floating dry dock workshops, machine (YRDM)

Covered barges repair (YRL)

Radiological repair barges (YRR)

Salvage craft tenders (YRST)

Stevedoring barges (YS)

Yard seaplane derricks (YSD)

YSD-11-class crane ship

Salvage barges (YSP)

Sludge removal barges (YSR)

Yard tugs (YT)

Many of these tugs were later assigned YTB, YTL, or YTM classifications.

Natick-class

Valiant-class

Rainier-class

Large harbor tugs (YTB)

Natick-class

Small harbor tugs (YTL)

Medium harbor tugs (YTM)

(YTN)

Unknown type, appeared without description as project SCB 61P in a Ship Characteristics Board project list. [101]

Torpedo trials craft (YTT)

Cape Flattery-class

Drone aircraft catapult control craft (YV)

Catapult barges (YVC)

Water barges (YW, YWN)

YW barges are self-propelled, YWN barges are not.

Unclassified vessels

Barrier boats

Barrier Boat (19BB) USN tug-boat Boomin Beaver.jpg
Barrier Boat (19BB)

The 19 foot, 9.5 ton Barrier Boats (19BB) were built to deploy and maintain port security booms surrounding Navy ships and installations in port. A total 13 unnamed boats were first delivered in 2003. [106]

Other Barrier Boats are 30-foot Modutech work boats. [107]

See also

Similar United States Maritime Administration (MARAD) designations:

Related Research Articles

<span class="mw-page-title-main">Auxiliary ship</span> Type of naval ship

An auxiliary ship is a naval ship designed to support combatant ships and other naval operations. Auxiliary ships are not primary combatant vessels, though they may have some limited combat capacity, usually for purposes of self-defense.

<span class="mw-page-title-main">Type B ship</span> World War II barges

The Type B ship is a United States Maritime Administration (MARAD) designation for World War II barges. Barges are very low cost to build, operate and move. Barges were needed to move large bulky cargo. A tug boat, some classed as Type V ships, could move a barge, then depart and move on to the next task. That meant the barge did not have to be rushed to be unloaded or loaded. Toward the end of World War 2, some ships that had not been completed in time for the war were converted to barges. US Navy barges are given the prefix: YWN or YW. Due to shortage of steel during World War II, concrete ship constructors were given contracts to build concrete barges, with ferrocement and given the prefix YO, YOG, YOGN. Built in 1944 and 1945, some were named after chemical elements.

<span class="mw-page-title-main">Type V ship</span> MARCOM tugboat class

The Type V ship is a United States Maritime Commission (MARCOM) designation for World War II tugboats. Type V was used in World War II, Korean War, and the Vietnam War. Type V ships were used to move ships and barges. Type V tugboats were made of either steel or wood hulls. There were four types of tugboats ordered for World War II. The largest type V design was the sea worthy 186-foot (57 m) long steel hull, V4-M-A1. The V4-M-A1 design was used by a number of manufacturers; a total of 49 were built. A smaller steel hull tugboat was the 94-foot (29 m) V2-ME-A1; 26 were built. The largest wooden hull was the 148-foot (45 m) V3-S-AH2, of which 14 were built. The smaller wooden hull was the 58-foot (18 m) V2-M-AL1, which 35 were built. Most V2-M-AL1 tugboats were sent to the United Kingdom for the war efforts under the lend-lease act. The Type V tugs served across the globe during World War II including: Pacific War, European theatre, and in the United States. SS Farallon, and other Type V tugs, were used to help built Normandy ports, including Mulberry harbour, on D-Day, 6 June 1944, and made nine round trips to Normandy to deliver Phoenix breakwaters.

Everett-Pacific Shipbuilding & Dry Dock Company was established in 1942 to build ships needed for World War II. Yard construction began on 1 March 1942. As part of the Emergency Shipbuilding Program, the US Navy provided some of the capital to start Everett-Pacific Shipbuilding at Port Gardner Bay in Everett, Washington. Everett-Pacific was sold in 1945 to the Pacific Car and Foundry, who was already a major manufacturer of railcars and trucks. Pacific Car and Foundry was building barges for the US Navy during World War II at plants in Renton, Seattle and Tacoma in the state of Washington. The lease for the shipyard in Everett, Washington ended in 1949 and the yard closed. Pacific Car and Foundry in 1972 changed its name to Paccar Inc. to reflect its major products. The Everett-Pacific shipyard site later became part of Western Gear, a heavy machinery manufacturer. From 1987 to 1992, the shipyard was rebuilt to become part of Naval Station Everett. Everett-Pacific Shipbuilding was started by William Pigott Jr. a Seattle businessmen and his brother Paul Pigott (1900-1961). William Pigott Jr. was born in 26 Aug. 1895 in Pueblo, CO and died on 8 July 1947 in San Francisco, CA.

Pollock-Stockton Shipbuilding Company was established in 1942 to build ships needed for World War II. As part of the Emergency Shipbuilding Program the US Navy provided some of the capital to start Pollock-Stockton Shipbuilding at Stockton, California. The shipyard was located at San Joaquin River and Stockton Channel, near Louis Park. After the war the shipyard closed down in February 1946.

References

Citations

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Footnotes

  1. USS George Eastman participated in Operation Castle, Operation Wigwam, Operation Redwing, and Project SHAD
  2. USS Granville S. Hall participated in Operation Castle and Project SHAD

Sources

"Ship Abbreviations and Symbols - Y".

Museum ship