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. [1] [2]
Tugboats are used to maneuver vessels and barges by pushing or towing them. Tugs are needed to move vessels that either should not move by themselves, such as large ships in a crowded harbor or a narrow canal, or those that can not move by themselves, like as barges, disabled ships, or log rafts. [3] Tugboats are powerful for their small size and are strongly built. Early tugboats used steam engines, but most have diesel engines now. Many tugboats have firefighting water cannons, allowing them to assist in firefighting, especially in harbors. Some minesweepers like USS Vireo, USS Lark and USS Kingfisher were converted to ocean tugs for the war.
Named for small US ports. They had steel hulls, with a displacement of 325 long tons (330 t ), 100 ft (30 m) long, with a beam of 25 ft (7.6 m), and a draft of 11.5 ft (3.5 m). Many had Enterprise or Alco diesel engines that ranged from 700 to 1,000 hp (520 to 750 kW) with electric drives. They were classified the Hiawatha-class tug in US Navy service, with an original designation of YT, "District Harbor Tug". On 15 May 1944, they were redesignated YTB, "District Harbor Tug, Large", before finally being designated YTM, "Harbor Tug, Medium", in February 1962. The 26 V2-ME-A1's were built by six different builders; Birchfield Shipbuilding & Boiler Co., Inc., Tacoma, Washington, 6 tugs; Canulette Shipbuilding, Slidell, Louisiana, 4 tugs; Calumet Shipyard & Drydock, Chicago, Illinois, 5 tugs; Ira. S. Bushey & Sons, Brooklyn, New York, 5 tugs; General Ship & Engine Works, East Boston, Massachusetts, 2 tugs; and Brunswick Marine Construction Corporation, Brunswick, Georgia, 4 tugs. [4] [5]
Original name | Renamed | Hull no. | Builder | Launch Date | Delivery Date | Fate |
---|---|---|---|---|---|---|
Port Angeles | Hiawatha | YT-265 | Birchfield Shipbuilding & Boiler Co., Inc., Tacoma, Washington | 3 April 1942 | 30 November 1942 | sold 1990 as Hiawatha, then Point San Pablo, Delta Lindsey, scrapped [6] |
Port Blakely | Pocahontas | YT-266 | 1 May 1942 | 31 December 1942 | sold 1976, renamed Sea Lark, scrapped 2019 [7] | |
Port Discovery | Pogatacut | YT-267 | 3 April 1942 | 23 December 1942 | sold private 1970, scrapped [8] | |
Port Ludlow | Red Cloud | YT-268 | 2 May 1942 | 8 March 1943 | scrapped 1987 [9] | |
Port Madison | Sakarissa | YT-269 | 14 July 1942 | 12 April 1943 | to MARAD 1974, now at Amphibious Forces Memorial Museum [10] | |
Port Orchard | Santanta | YT-270 | 14 July 1942 | 19 May 1943 | sold private 1976, renamed Sea Fox, now Maris Pearl [11] [12] | |
Port Allen | YT-723 | YT-723 | Canulette Shipbuilding, Slidell, Louisiana | 22 May 1942 | 20 March 1943 | to MARCOM 1945, sold 1945 as Port Allen, later Ed Colle, scrapped [13] |
Port Barre | 22 May 1942 | 31 March 1943 | sold 1946, as Standard No. 2, later Kamy Kay G, laid up and/or abandoned | |||
Port Hudson | Wabaquasset | YTB-724 | 17 June 1942 | 26 April 1943 | acquired by US Navy 1945, never saw actual Naval service, then Crescent Towing as Port Hudson [14] | |
Port Vincent | 22 July 1942 | 27 May 1943 | sold 1946, as Standard No. 3, 1993, Port Vincent , 1996, Thunderbird | |||
Port Byron | LT 113 | LT 113 | Calumet Shipyard, Chicago, Illinois | 10 May 1942 | 11 September 1942 | acquired by US Army 1942, renamed LT 113, sold 1946, renamed Dalzellaird, scrapped [15] |
Port Allegheny | LT 114 | LT 114 | 12 May 1942 | 5 October 1942 | acquired by US Army 1942, renamed LT 114, sold 1946, renamed Dyer, later Porpoise, Sachem, now Porpoise [16] | |
Port Elizabeth | Namequa | YT-331 | 22 May 1942 | 15 October 1942 | sold private 1950, scrapped [17] | |
Port Conway | Nesutan | YT-338 | 16 June 1942 | 4 November 1942 | sold to US Army 1950, as LT-1928, later George S., Jesse, now Victory [18] | |
Port Fulton | LT 238 | LT 238 | 1 July 1942 | 14 November 1942 | sold 1946, as Frances K. McAllister, scrapped 1996 | |
Port Chester | LT 233 | LT 233 | Ira. S. Bushey & Sons, Brooklyn, New York | 10 September 1942 | 30 October 1942 | sold 1946 as Capt Ed, later Peggy H, Signet Resolute, now Bluebird [19] |
Port Crane | Swatane | YT-344 | 10 September 1942 | 25 November 1942 | sold 1964, scrapped [20] | |
Port Henry | 19 October 1942 | 19 February 1943 | sold private 1945, renamed Captain Rodger, wrecked 1947 | |||
Port Jervis | 19 October 1942 | 27 January 1943 | sold private, renamed Newport, Felicia, Terror, R. H. Tripp sank 2005 hurricane | |||
Port Kent | Oratamin | YT-347 | 19 August 1942 | 23 December 1942 | sold 1969, scrapped [21] | |
Port Clyde | LTC William R. Kendricks | General Ship & Engine Works, East Boston, Massachusetts | 20 November 1941 | 18 February 1942 | sold renamed, Resolute, scrapped [22] | |
Port Huron | LTC Herbert L. Kidwell | 6 December 1941 | 18 February 1942 | sold private as Port Huron, later Dalzelloch, Dalzellido, and Joan McAllister, scrapped [23] | ||
Port Wentworth | Haiglar | YT-327 | Brunswick Marine Construction Corporation, Brunswick, Georgia | 17 June 1942 | 14 November 1942 | sold private 1947. Limon, Frank W. Barnes, Sandra, Sandra St. Philip, Tanda 12, Tug McGraw, scrapped [24] |
Port Clinton | 1 September 1942 | 23 January 1943 | sold private 1945, Captain, Fred B. Dalzel, New Castle, Eliot Winslow, scrapped | |||
Port Deposit | Mauvilla | YT-328 | 1 August 1942 | 23 January 1943 | sold private 1963, scrapped [25] | |
Port Edwards | 17 October 1942 | 6 February 1943 | sold private 1945, Hercules, Bear, scrapped |
Named after lighthouses, the V4-M-A1's were the largest and most powerful tugs in the world when they were built in 1943. They had steel hulls, with a displacement of 1,613 long tons (1,639 t ), 195 ft (59 m) long, with a beam of 37.5 ft (11.4 m), and a draft of 15.5 ft (4.7 m). The V4-M-A1 had a maximum speed of 14 kn (26 km/h; 16 mph). There were two engine manufacturers: National Supply Company, with 8–cylinder sets of 3,200 bhp (2,400 kW), and the Enterprise Engine & Trading Company, with 6–cylinders and 2,340 bhp (1,740 kW) power. The V4-M-A1's were operated by Moran Towing & Transportation, in New York, on behalf of the War Shipping Administration. Built by: Avondale Marine, in Westego, Louisiana, General Ships & Engine, in East Boston, Pennsylvania Shipyards, in Beaumont, Texas, Globe Shipbuilding, in Superior, Wisconsin, Froemming Brothers, in Milwaukee, Wisconsin, and Pendleton Shipbuilding, in New Orleans, Louisiana. [26] [27] [28] [29] [30]
Some were classed as YTB-"District Harbor Tug Large". A Douglas fir wood hull ship with a displacement of 1,220 long tons (1,240 t ), 157 ft (48 m) long, with a beam of 32 ft (9.8 m), and a draft of 15 ft (4.6 m). They had triple-expansion reciprocating engines producing 1,000 hp (750 kW). They were capable of 10 kn (19 km/h; 12 mph) without a tow and about 6 kn (11 km/h; 6.9 mph) with a tow. They had a range of 1,500 mi (2,400 km). The V3-S-AH2's were manned by a crew of 27. They were built by Corpus Christi Shipyard, Corpus Christi, Texas, Puget Sound SB Company, Olympia, Washington, Standard Shipbuilding Company, San Pedro, California, and Astoria Shipbuilding, Astoria, Oregon. [32]
Port Sewall class tug. Named for American ports. All but one tug went for Lend-Lease use, some serviced in the Mediterranean Sea in WW2. V2-M-AL1 were: Wood hull, 90 tons, beam 19 foot, diesel engine with 240 horsepower, fuel Oil: 1920 gallons. Built by Puget Sound SB, Standard SB, Steinbach IW, Eureka Shipbuilding, Arlington SB, Texas SB, Siletz BW, Blair Company, Marinette Marine and Texas SB. [33] [34]
ATR-1 class - Auxiliary Tug Rescue was a wooden-hulled rescue tug that was built by Wheeler SB, Northwest Shipbuilding, Frank L. Sample, Jakobson Shipyard, Camden SB, Lynch SB, and Fulton Shipyard in 1944 and 1945. The 89 ATR-1-class tugs serve during World War II in both Asiatic-Pacific Theater and the European theatre of World War II. 40 of ATR-1 class had a displacement of 852 tons light and 1,315 tons fully loaded. They had a length of 165 feet 6 inches (50.44 m), a beam of 33 feet 4 inches (10.16 m) and draft of 15 feet 6 inches (4.72 m). Top speed of 12.2 knots (22.6 km/h; 14.0 mph). The largest boom had a capacity of 4 tons. They were armed with one 3-inch/50-caliber gun and two single Oerlikon 20 mm cannon. The crew complement was five officers and 47 enlisted men. They had a fuel capacity of 1,620 bbl (258 m3). The propulsion was one Fulton Iron Works vertical triple-expansion reciprocating steam engine with two Babcock and Wilcox "D"-type boilers with a single propeller creating 1,600 shp (1,200 kW ). They had two turbo drive Ships Service Generators, rated at 60 kW 120 V D.C. Example is USS ATR-31. [36] [37] [38] [39]
The Cherokee class of fleet tugboats, originally known as the Navajo class, were built for the US Navy for World War II with a displacement of 1,235 long tons (1,255 t). They had a length of 205 ft (62 m), a beam of 38 ft 6 in (11.73 m), a draft of 18 ft (5.5 m). Their propulsion was composed of a diesel-electric engine with one shaft creating 3,600 hp (2,700 kW) and a top speed of 16.5 knots (30.6 km/h; 19.0 mph). They were give the hull classification symbol of "AT" for "Auxiliary Tug". The tugs were built by Bethlehem Mariners Harbor, Staten Island, Charleston Shipbuilding and Drydock Company, and United Engineering Co. Example: USS Navajo. [40]
Abnaki-class tugboat were ocean fleet tugboats that were built for the US Navy for World War II with a displacement of 1,589 tons, a length of 205 ft 0 in (62.48 m), a beam of 38 ft 6 in (11.73 m), and a draft of 15 ft 4 in (4.67 m). They had a propulsion of: 4 × General Motors 12-278A diesel main engines, 4 × General Electric generators, 3 × General Motors 3-268A auxiliary services engines, with a single screw of 3,600 shp (2,700 kW) and a top speed: 16.5 knots. Class ATF for Auxiliary Tug Fleet. Built by Charleston Shipbuilding & Drydock. Example: USS Abnaki (ATF-96). [41]
Sotoyomo-class tugboat were tugboats that were built for the US Navy for World War II with a displacement of 534 long tons (543 t) light, 835 long tons (848 t) full, a length of 143 ft (44 m), a beam of 33 ft (10 m) and a draft of 13 ft (4.0 m). They had a propulsion of diesel-electric engine with a single screw and a top speed of 13 knots. Harbor tugs (YT) were named after American Indian tribes: Example tug is the USS Ontario (AT-13) [42] [43]
Cahto-class district harbor tug was a harbour tug of the US Navy with a displacement of 410 long tons (417 t), a length of 110 ft 0 in (33.53 m), a beam of 27 ft 0 in (8.23 m) and a draft of 11 ft 4 in (3.45 m). They had a propulsion of diesel-electric engine with a single screw and a top speed of 12 knots. A crew of 12. Sample tug: USS Cahto (YTB-215). Built by Kneass Boat Works, Anderson & Cristofani, Puget Sound Naval Shipyard, Norfolk Naval Shipyard, Consolidated Shipbuilding Corp., Defoe Shipbuilding Company, Gulfport Shipbuilding Corporation, Gibbs Gas Engine, Bushey & Sons Shipyard, W. A. Robinson, Greenport Basin, Mathis, Elizabeth City, Stone Boat Yard, Martinac, Ira Bushey, Luders Marine, Westergard, Everett-Pacific, United States Coast Guard Yard, Commercial Iron Works and Bethlehem Shipbuilding San Pedro. [44] [45] [46] [47]
Hisada class harbor tug is a subclass of Cahto-class district harbor tug. Hisada class harbor had the same design as the 260-ton Cahto-class district harbor tug. Harbor tugs (YT) were named after American Indian tribes. Example tugs: USS Nabigwon (YTB-521) and USS Wabanquot (YTB-525). [48]
Woban Class District Harbor Tug is a subclass of Cahto-class district harbor tug. Hisada class harbor had the same design as the 260-ton Cahto-class district harbor tug. Harbor tugs (YT) were named after American Indian tribes. Built by Pacific Coast Engineering, Puget Sound Navy Yard, and Consolidated Shipbuilding Corporation. Example tugs: Hoga (YT-146) and USS Nokomis (YT-142). [49]
For World War 2 the US Army had tugboats built to move cargo barges in harbors. The Army often called the tug a Sea Mule, used to move US Army barges. Astoria Marine Construction Company built 15 MTL. [50]
Bagaduce-class tugboat were World War 1 tug boats used in World War 1 and World War 2. During World War 1 these were called YMT-Yard Motor Tug. Engineered with a displacement of 1,000 long tons (1,016 t) (normal) and a length of 156 ft 8 in (47.75 m), a beam of 30 ft (9.1 m) and a draft of 14 ft 7 in (4.45 m), with a top speed of 12.4 knots. USS Example USS Sagamore (AT-20). [57]
Arapaho-class fleet tug were World War 1 tug boats used in World War 1 and World War 2. Engineered with a displacement of 575 tons and a length of 122 ft 6 in (37.34 m), a beam of 24 ft (7.3 m) and a draft of 12 ft 10 in (3.91 m), with a top speed of 11 knots. Ships in class:
Modified Ocean Warrior-class Tugs built by Kingston Ship Builder in Kingston ON. GT of 233 tons, 105 feet long, Beam of 26.2' and Draft of 12.5' with 1000HP, max of 14 knots, Steel hull, built between 1945 and 1946. [59] [60]
USS Achigan (YT/YTB-218) was a Cahto-class large harbor tug in the service of the United States Navy. A French-Canadian rendering of the word ashigan which, in Chippewa and Algonquian dialects, is the name of the smallmouth bass.
USS Pocahontas (YT/YTB/YTM-266), was a type V2-ME-A1 harbor tug that entered service in the United States Navy in 1943, and was sold in 1976. She was the third ship to bear the name Pocahontas.
USS Nokomis (YT-142/YTB-142/YTM-142) was a Woban-class harbor tug built in Bremerton, Wash, and assigned to Pearl Harbor, Hawaii, in 1940. Nokomis was present during the Japanese attack on Pearl Harbor, 7 December 1941. She was the first vessel on scene at the USS Arizona, and was called off by the officers on deck because of the imminent explosion of the battery below deck. It then left and helped beach the USS Nevada, with Hoga (YT-146), and YT-153. The beaching of the Nevada saved Pearl Harbor's mouth from being blocked. After that the USS Nokomis fought fires and dewatered the battleship USS California, for 3 days. This effort made the California salvageable, to be recommissioned again later in the war. Nokomis was also the last vessel to move the surviving YC-699 barge prior to the Japanese attack on Pearl Harbor. Post-war she continued serving Pearl Harbor ships until she was decommissioned in May 1973, and eventually sold for "scrap" to Crowley, in San Francisco. She was renamed Sea Serpent and served many years in the San Francisco Bay as a tug and fire boat. In 1989, after the Loma Prieta earthquake in the SF Bay area, Nokomis and Hoga fought fires alongside each other again.
USS Wenonah (YT-148/YTB-148/YTM-148) was a Woban-class district harbor tug which served during World War II in California ports, and continued her service until she was struck by the Navy in 1974. On 17 August 2009, the Wenonah sank while berthed at Treasure Island, CA, and was raised by the floating crane Left Coast Lifter on 28 August 2009.
USS Waneta (YT-384), later YTB-384, later YTM-384, was a United States Navy harbor tug in commission from 1944 to 1946 and from 1953 to 1974.
USS Evea (YT-458), originally the sixth USS Resolute (YT-458), later YTB-458, was a United States Navy tug in commission from 1943 to 1944.
USS Hiawatha (YT-265), later YTB-265, later YTM-265, was a type V2-ME-A1 harbor tug that entered service in the United States Navy in 1942, and was sold in 1987. She was the third ship to bear the name Hiawatha.
Originally contracted to be built as YT‑392 on 7 April 1941, Mecosta (YTB‑392) was laid down by Consolidated Shipbuilding Corp., Morris Heights, N.Y., 13 September 1944; launched 28 October 1944: and placed in service 20 January 1945.
The T1 tanker or T1 are a class of sea worthy small tanker ships used to transport fuel oil before and during World War II, Korean War and Vietnam War. The T1 tanker classification is still in use today. T1 tankers are about 200 to 250 feet in length and are able to sustain a top speed of about 12 knots. The hull designation AO is used by the US Navy to denote the ship is a T1 oil tanker and AOG that the T1 is a gasoline tanker. The small size allows the T1 to enter just about any sea port or to anchor around a small island, this was very useful during the Pacific War. The T1 tanker can carry about 48,000 to 280,000 bbls. Some T1 tankers were used to transport goods other than oil, a few were used for black oil-crude oil, diesel, chemicals and rarely bulk cargo like grain. T1 tankers are also called liquid cargo carriers. The T1 tanker has about a 6,000 to 35,000 deadweight tonnage (DWT) of cargo. The small size also gives the ships short turn around time for repair, cleaning, loading and unloading. A T1 tanker carrying dirty cargo, like crude oil needs a few weeks of labor to clean before carrying clean cargo. Most T1 ships during World War II were named after major oil fields.
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 elements.
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.
Bethlehem Shipbuilding San Pedro was a major shipbuilding company on Terminal Island in San Pedro, California owned by Bethlehem Shipbuilding Corporation. To support the World War 2 demand for ships Bethlehem Shipbuilding San Pedro built: US Navy Destroyers and after the war tugboats. The yard became involved in World War II production in the early shipbuilding expansions initiated by the Two-Ocean Navy Act of July 1940. At its peak during the war about 6,000 worked at the yard, Bethlehem Shipbuilding San Pedro shipyard was opened in 1918 as Southwestern Shipbuilding by Western Pipe & Steel. Western Pipe & Steel sold the shipyard to Bethlehem Shipbuilding Corporation in 1925. Shipbuilding ended after World War 2 in 1946. In 1983 the shipyard was sold to Southwest Marine. In 1997 Southwest Marine operated four shipyards, which they sold to The Carlyle Group. Carlyle Group renamed the shipyard US Marine Repair. In 2002 US Marine Repair sold all six of its yards to United Defense Industries. In 2005 it was sold to BAE Systems but the yard was not used and the yard is now part of the Port of Los Angeles. The shipyard was located at 1047 South Seaside Ave, San Pedro.
W. F. Stone & Son or Stone Boat Yard was a small wooden shipbuilding company in Alameda, California. To support the World War 2 demand for ships W. F. Stone & Son built tugboats, sub chasers and minesweepers. For World War 1 the shipyard, then called W. F. Stone & Son at Kennedy and Bocimer Streets, built tugboats for postwar work in 1921. The shipyard was opened in 1853 by William F. Stone, from Dartmouth, England, at the Hunter's Point in San Francisco Bay, near the current Hunters Point Naval Shipyard. In 1892 William Stone's son, Frank, ran the company and moved the shipyard to Tiburon. In 1899 he moved the shipyard again to Harbor View, San Francisco. In 1911, he again moved to Diesel Way, in Oakland, near Union Point Park on the Tidal Canal. When Lester Stone, Frank's son, became a partner, the company was changed to W. F. Stone & Son. In 1923, Frank Stone died, Lester Stone continued the company. In 1942 the company moved again, to 2517 Blanding Ave, Alameda on the south side of the Tidal Canal. In 1970 Lester Stone retired and sold the shipyard to John Whitset. Whitset, who did not rename the company, the company went into bankruptcy in 1986. It came out of bankruptcy and was sold to Bill and Grace Bodle. Bodle sold the company in 2000 to David Olson. The shipyard closed in 2004. For most of its history, the shipyard built a large variety of schooners, fishing boats, cargo ships, tugboats, sailboats, racing and recreational yachts.
Anderson & Cristofani was a wooden shipbuilding company in San Francisco, California. To support the World War 2 demand for ships Anderson & Cristofani shipyard switched over to military construction and built: US Navy APC coastal transports, tugboats, Patrol Boats and Minesweepers.
The Pacific Coast Engineering Company or PACECO Corp. is an American industrial fabricator and mechanical engineering company headquartered in Haywood, California. It is a wholly-owned subsidiary of Mitsui E&S.
Eureka Shipbuilding was a wooden shipbuilding company in Eureka, California. The shipyard was just south of town in Fields Landing on the South Bay of Humboldt Bay. To support the World War 2 demand for ships Eureka Shipbuilding shipyard switched over to military construction and built: United States Marine Corps tugboatss. Eureka Shipbuilding was started in 1941. On January 25, 1943 Eureka Ship Builders, Inc. was awarded a contract to build six V2-M-AL1 tugboats at a cost of $35,970 each, contact number DA-MCc-824. V2-M-AL1 tus is a class of Type V ship. The V2-M-AL1 is also called a Port Sewall class tug. V2-V2-M-AL1 tugs were named for American ports. All of Eureka Shipbuilding tug were used for Lend-Lease use to Britain as type TUSA tugs. After the war in 1947 the company was renamed `
Splinter fleet or Splinter navy was a nickname given to the United States wooden boats used in World War II. The boats served in many different roles during the war. These boats were built in small boatyards on the West coast and East coast, Great Lakes and the Gulf of Mexico. They could be built quickly, in just 60 to 120 days. Most of the boats were built by boatyards that already had the tools and knowledge from building yachts, sailboats and motor boats. Many were built by craftsmen in family-owned small businesses. Under the Emergency Shipbuilding Program and War Shipping Administration contracts went out to over fifty boatyards across the country. The boats were built for the US Navy, the United States Army Air Forces, United States Coast Guard, and US Army. Some of the wooden boats went to Allied nations on the Lend-Lease program.
The YT-46-class harbor tugboat was a wood-hulled tugboat design ordered by the U.S. Navy in May and June 1918 during World War I. 40 ships of the type were launched and completed at 13 shipyards: the Charleston Navy Yard; the New Orleans Naval Yard; the Clayton Ship & Boat Building Company, Clayton, New York; the Eastern Shipyard Company, Greenport, New York; the Eastern Shore Shipbuilding Company, Sharpstown, Maryland; the Greenport Basin and Construction Company, Greenport, New York; the Hiltebrant Dry Dock Company, Kingston, New York; Robert Jacob Shipyard, City Island, New York; the Luders Marine Construction Company, Stamford, Connecticut; the Mathis Yacht Building Company, Camden, New Jersey; the New York Yacht, Launch & Engine Company, Bronx, New York; the Vinyard Shipbuilding Company, Milford, Delaware; and the Wheeler Shipyard Corporation, Brooklyn, New York. In 1920, at the Navy's adoption of alpha-numeric hull designations, the ships were classified as yard tugs YT-46 though YT-85.
The YT-86-class harbor tugboat was a wood-hulled tugboat design ordered by the U.S. Navy during World War I. 15 ships of the type were launched and completed, 12 as harbor tugs and three as ambulance boats. All were launched at the Mare Island Naval Shipyard in Vallejo, California except for one at the Pearl Harbor Naval Shipyard in Hawaii. In 1920, after the Navy's adoption of alpha-numeric hull designations, the ships were classified as yard tugs YT-86 though YT-90 and YT-92 through YT-99 and ambulance boats YH-1, YH-2, and YH-3.