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definición - Towboat

towboat (n.)

1.a powerful small boat designed to pull or push larger ships

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Merriam Webster

TowboatTow"boat` (?), n.
1. A vessel constructed for being towed, as a canal boat.

2. A steamer used for towing other vessels; a tug.

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definición (más)

definición de Towboat (Wikipedia)

sinónimos - Towboat

towboat (n.)

tower, tug, tugboat, tug-boat

frases

diccionario analógico


Wikipedia

Towboat

                   

Not to be confused with the historic boat type with the same name, also called horse-drawn boat.

  The towboat Angelina pushes two loaded barges in New Orleans.

A towboat is a boat designed for pushing barges or car floats. Towboats are characterized by a square bow with steel knees for pushing and powerful engines. They are most often seen on inland waterways and western rivers where they can push more than 50 large barges lashed together into a tow of varying shapes and sizes. Towboats that travel long distances (linehaul) include living quarters for the crew. Outside of the USA towboats are usually referred to as "push boats" or "pushers".

Contents

  Towboat size

  The towboat Peter Fanchi down-bound on the Ohio river at Louisville, Kentucky

Towboats range in size from less than 600 horsepower (447 kW) up to 10,500 horsepower (7,830 kW). Most towboats are from 35 to 200 feet (11 to 61 m) long, and 21 to 56 feet (6.4 to 17.1 m) wide. Smaller boats are used in harbors, fleeting areas and around locks while larger boats operate in "line-haul" operations over long distances and between major ports. In the United States, south of the Chain of Rocks Lock across from St. Louis on the Mississippi River, the river is open with no locks or impediments other than channel size and depth. Larger boats can run this segment of the river with the maximum tow size of 42 barges southbound and 40+ northbound. A typical River tow might be 35 to 42 barges, each about 200 feet (61 m) long by 35 feet (11 m) wide, configured in a rectangular shape 6 to 7 barges long and 5 to 6 barges wide, depending on the number of barges in tow. The whole tow, excluding the towboat, can easily be over 1,200 feet (370 m) long and 200 feet (61 m) wide, covering over 6 acres (2.4 ha) and holding thousands of tons of cargo.

In the United States above St. Louis on the Upper Mississippi River and on other rivers such as the Illinois, Ohio, Arkansas, Tennessee and Cumberland, boats can handle only up to 15 barges due the size of lock chambers. These boats tend to be limited to 5,000 horsepower (3,728 kW).

Towboats in line-haul service operate 24/7 and have the latest in navigational equipment, such as color radar, GPS systems, electronic river charts, and specialized radio communications.

Boats that traverse the Intra-Coastal Waterway (ICW) are commonly referred to as "ditch boats" or "canal boats". ICW tows usually consist of 1 to 4 barges ranging in size, usually "strung out" end to end when loaded or "doubled up" side by side when empty.

  Towboat and mixed cargo barges on the Chang Jiang (Yangtze) river.

Towboats always push the fleet of barges, which are lashed together with steel cables usually 1 to 1.5 in (25.4 to 38.1 mm) in diameter. The term towboat arises from steamboat days, when steamboat fortunes began to decline and to survive steamboats began to "tow" wooden barges alongside to earn additional revenue. Eventually the railroad expansion following the American Civil War ended the steamboat era.

  See also

  References

  • Lehman, Charles F. (2009). A riverman’s lexicon : in Lehman’s terms. Florissant, Mo.: J.R. Simpson & Associates. ISBN 978-0-9841503-0-4.  Nautical terminology specific to towboating and inland waterways.

  External links

   
               

 

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