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Valiant-class Harbor Tug
The ''Valiant'' class is a class of US Navy shipyard, yard tugboats (YT) that entered service in 2009. These tugs are designed to provide ship assist, barge and general towing, and escort services. Design Before committing to a new tug design, Navy Region Northwest upgraded two of the older s, Menominee (YT-807), ''Menominee'' (YT-807) and Washtucna (YTB-826), ''Washtucna'' (YTB-826), with improved power systems and z-drive propulsion units. Experience with these and two other YTBs with improved winch and power equipment lead to the decision to build new tugs. The ''Valiant'' class was designed by Robert Allan Ltd. and derived from their ''Z-Tech 6000'' commercial tugboat design. The prime contractor for the first four class members was Pacific Tugboat Services of Long Beach, California. The builder was J.M. Martinac Shipbuilding Corp. of Tacoma, Washington. Unlike previous classes of navy tugboats, the ''Valiant'' class employs z-drive propulsion units manufactured by Scho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navy Region Northwest
Navy Region Northwest is one of several United States Navy Regions responsible to Commander, Navy Installations Command for the operation and management of Naval shore installations in Alaska, Washington (state), Washington, Oregon, Idaho, Montana, Wyoming, North Dakota, South Dakota, Nebraska, Minnesota, and Iowa. The Commander oversees the assigned shore organization and provides facilities and space management, exercise coordination, and support to homeported and transient ships, submarines, and aircraft as well as afloat and ashore tenants, military and family members. Puget Sound is the U. S. Navy’s third largest fleet concentration area. The major Northwest installations are Naval Air Station Whidbey Island, Naval Station Everett, and Naval Base Kitsap (which includes Puget Sound Naval Shipyard, Submarine Base Bangor, Naval Undersea Warfare Center - Keyport, Manchester Fuel Depot, and Naval Magazine Indian Island). The Department of the Navy spends about $5.3 billion annual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Allan Ltd
Robert Allan Ltd. is Canada's oldest privately owned consulting Naval Architectural firm, established in Vancouver, British Columbia in 1930. Their experience includes designs for vessels of almost all types, from small fishing boats to ocean-going ferries. The firm is best known for its work in the fields of tug and barge transportation, ship-assist and escort tugs, fast patrol craft, fireboats and shallow-draft vessels. They provide professional marine consulting and design services to a worldwide client base. History * 1930 - Robert Allan began private practice as a Consulting Naval Architect. He produced designs for the British Columbia fishing fleet and for coastal ferry services, among others. * 1946 - Robert F. Allan joined his father in the practice. The business developed specialized tugs and barges for the forestry and mining industries along the B.C. coast. * 1962 - Robert Allan Ltd. was incorporated. * 1973 - Robert G. Allan joined the company. * 1981 - Robert G. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puyallup (YT-806)
''Puyallup'' (YT‑806) is a United States Navy . The tugboat is named for the people of the Puyallup tribe. Construction The contract for ''Puyallup'' was awarded 8 October 2010. She was laid down 1 March 2010 by J.M. Martinac Shipbuilding Corp., Tacoma, Washington and launched 6 November 2010. Operational history ''Puyallup'' was delivered to the Navy at Yokosuka and is assigned to Commander Fleet Activities Yokosuka. She currently holds the title of "The Ready Tug" at Port Operations due to her reliability and sustained operational status. She is one of four Valiant-Class Harbor Tug's stationed at Commander Fleet Activities Yokosuka The asterisk ( ), from Late Latin , from Ancient Greek , ''asteriskos'', "little star", is a Typography, typographical symbol. It is so called because it resembles a conventional image of a star (heraldry), heraldic star. Computer scientists .... Under the command of her crew; Master Patrick J. O'Brien, Chief Engineer Nicholas Reynolds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seminole (YT-805)
''Seminole'' (YT‑805) is a United States Navy . Construction The contract for ''Seminole'' was awarded 25 March 2008. She was laid down by J.M. Martinac Shipbuilding Corp., Tacoma, Washington and launched 6 November 2010. Operational history ''Seminole'' was delivered to the Navy 8 April 2011 at Yokosuka by the US-flagged heavy-lift ship '' BBC Houston''. ''Seminole'' is assigned to Commander Fleet Activities Yokosuka The asterisk ( ), from Late Latin , from Ancient Greek , ''asteriskos'', "little star", is a Typography, typographical symbol. It is so called because it resembles a conventional image of a star (heraldry), heraldic star. Computer scientists .... References * * Valiant-class tugboats Ships built in Tacoma, Washington 2010 ships {{US-mil-ship-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
V12 Engine
A V12 engine is a twelve-cylinder piston engine where two banks of six cylinders are arranged in a V configuration around a common crankshaft. V12 engines are more common than V10 engines. However, they are less common than V8 engines. The first V12 engine was built in 1904 for use in racing boats. Due to the balanced nature of the engine and the smooth delivery of power, V12 engines were found in early luxury automobiles, boats, aircraft, and tanks. Aircraft V12 engines reached their apogee during World War II, following which they were mostly replaced by jet engines. In Formula One racing, V12 engines were common during the late 1960s and early 1990s. Applications of V12 engines in the 21st century have been as marine engines, in railway locomotives, as large stationary power as well as in some European sports and luxury cars. Design Balance and smoothness Each bank of a V12 engine essentially functions as a straight-six engine, which by itself has perfect primary and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caterpillar Inc
Caterpillar Inc. (stock symbol CAT) is an American Fortune 100, ''Fortune'' 500 corporation and the world's largest construction-equipment manufacturer. In 2018, Caterpillar was ranked number 65 on the ''Fortune'' 500 list and number 238 on the Global ''Fortune'' 500 list. Caterpillar stock is a component of the Dow Jones Industrial Average. Caterpillar Inc. traces its origins to the 1925 merger of the Holt Manufacturing Company and the C. L. Best Tractor Company, creating a new entity, California-based Caterpillar Tractor Company. In 1986, the company reorganized itself as a Delaware corporation under the current name, Caterpillar Inc. It announced in January 2017 that over the course of that year, it would relocate its headquarters from Peoria, Illinois, to Deerfield, Illinois, scrapping plans from 2015 of building an $800 million new headquarters complex in downtown Peoria. Its headquarters are located in Irving, Texas, since 2022. The company also licenses and markets a li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bollard Pull
Bollard pull is a conventional measure of the pulling (or towing) power of a watercraft. It is defined as the force (in tonnes force, or kilonewtons (kN)) exerted by a vessel under full power, on a shore-mounted bollard through a tow-line, commonly measured in a practical test (but sometimes simulated) under test conditions that include calm water, no tide, level trim, and sufficient depth and side clearance for a free propeller stream. Like the horsepower or mileage rating of a car, it is a convenient but idealized number that must be adjusted for operating conditions that differ from the test. The bollard pull of a vessel may be reported as two numbers, the ''static'' or ''maximum'' bollard pull - the highest force measured - and the ''steady'' or ''continuous'' bollard pull, the average of measurements over an interval of, for example, 10 minutes. An equivalent measurement on land is known as drawbar pull, or tractive force, which is used to measure the total horizontal for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Beach, California
Long Beach is a city in Los Angeles County, California. It is the 42nd-most populous city in the United States, with a population of 466,742 as of 2020. A charter city, Long Beach is the seventh-most populous city in California. Incorporated in 1897, Long Beach lies in Southern California in the southern part of Los Angeles County. Long Beach is approximately south of downtown Los Angeles, and is part of the Gateway Cities region. The Port of Long Beach is the second busiest container port in the United States and is among the world's largest shipping ports. The city is over an oilfield with minor wells both directly beneath the city as well as offshore. The city is known for its waterfront attractions, including the permanently docked and the Aquarium of the Pacific. Long Beach also hosts the Grand Prix of Long Beach, an IndyCar race and the Long Beach Pride Festival and Parade. California State University, Long Beach, one of the largest universities in California b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washtucna (YTB-826)
''Washtucna'' (YTB-826) was a United States Navy named for Chief Washtucna of the Palus tribe. Construction The contract for ''Washtucna'' was awarded 9 August 1971. She was laid down on 1 May 1973 at Marinette, Wisconsin, by Marinette Marine and launched 9 October 1973. Operational history Placed in service at San Diego, California, ''Washtucna'' performed local and coastal towing tasks for the 11th Naval District. Stricken from the Navy List 21 August 1997, ex-''Washtucna'' was transferred to the Department of the Interior at Midway Island Midway Atoll (colloquial: Midway Islands; haw, Kauihelani, translation=the backbone of heaven; haw, Pihemanu, translation=the loud din of birds, label=none) is a atoll in the North Pacific Ocean. Midway Atoll is an insular area of the Unit ... 17 October 1997. Converted to twin z-drive, she was reacquired by the navy and reinstated on 7 October 2008. Ex-''Washtucna'' was simultaneously reclassified and redesignated as unn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tacoma, Washington
Tacoma ( ) is the county seat of Pierce County, Washington, United States. A port city, it is situated along Washington's Puget Sound, southwest of Seattle, northeast of the state capital, Olympia, Washington, Olympia, and northwest of Mount Rainier National Park. The city's population was 219,346 at the time of the 2020 United States census, 2020 census. Tacoma is the second-largest city in the Puget Sound area and the List of municipalities in Washington, third-largest in the state. Tacoma also serves as the center of business activity for the South Sound region, which has a population of about 1 million. Tacoma adopted its name after the nearby Mount Rainier, called wikt:Tacoma, təˡqʷuʔbəʔ in the Lushootseed, Puget Sound Salish dialect. It is locally known as the "City of Destiny" because the area was chosen to be the western terminus of the Northern Pacific Railroad in the late 19th century. The decision of the railroad was influenced by Tacoma's neighboring deep-wat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Menominee (YT-807)
''Menominee'' (YT‑807) is a United States Navy . The tugboat is named for the people of the Menominee tribe. Construction The contract for ''Menominee'' was awarded 8 October 2010. She was laid down 1 March 2011 by J.M. Martinac Shipbuilding Corp., Tacoma, Washington and launched 3 December 2011. Operational history ''Menominee'' was delivered to the Navy at Yokosuka and is assigned to Commander Fleet Activities Yokosuka The asterisk ( ), from Late Latin , from Ancient Greek , ''asteriskos'', "little star", is a Typography, typographical symbol. It is so called because it resembles a conventional image of a star (heraldry), heraldic star. Computer scientists .... References * Valiant-class tugboats Ships built in Tacoma, Washington 2012 ships {{US-mil-ship-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tugboat
A tugboat or tug is a marine vessel that manoeuvres other vessels by pushing or pulling them, with direct contact or a tow line. These boats typically tug ships in circumstances where they cannot or should not move under their own power, such as in crowded harbour or narrow canals, or cannot move at all, such as barges, disabled ships, log rafts, or oil platforms. Some are ocean-going, some are icebreakers or salvage tugs. Early models were powered by steam engines, long ago superseded by diesel engines. Many have deluge gun water jets, which help in firefighting, especially in harbours. Types Seagoing Seagoing tugs (deep-sea tugs or ocean tugboats) fall into four basic categories: #The standard seagoing tug with model bow that tows almost exclusively by way of a wire cable. In some rare cases, such as some USN fleet tugs, a synthetic rope hawser may be used for the tow in the belief that the line can be pulled aboard a disabled ship by the crew owing to its lightness ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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