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308:. Also, in many ports, tankers are required to have tug escorts when transiting in harbors to render assistance in the event of mechanical failure. The port generally mandates a minimum horsepower or bollard pull, determined by the size of the escorted vessel. Most ports will have a number of tugs that are used for other purposes than ship assist, such as dredging operations, bunkering ships, transferring liquid products between berths, and cargo ops. These tugs may also be used for ship assist as needed. Modern ship assist tugs are "omni directional tugs" that employ propellers that can rotate 360 degrees without a rudder, like azimuthal stern drives (ASD), azimuthal tractor drives (ATD), Rotor tugs (RT) or cycloidal drives (VSP)(as described below).
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Often, this configuration is employed even without a "notch" on the barge, but in those cases it is preferable to have "push knees" on the tug to stabilize its position. Model bow tugs employing this method of pushing nearly always have a towing winch that can be used if sea conditions render pushing inadvisable. With this configuration, the barge being pushed might approach the size of a small ship, with the interaction of the water flow allowing a higher speed with a minimal increase in power required or fuel consumption.
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equipment or aircraft tires attached to or hung on the side of the tug. Some fendering is compression moulded in high-pressure thermic-fluid-heated moulds and have excellent seawater resistance, but are not widely used owing to the cost. Tugboat bow fenders are also called beards or bow puds. In the past they were made of rope for padding to protect the bow, but rope rendering is almost never seen in recent times. Other types of tugboat fender include Tug cylindrical fender, W fender, M fender, D fender, and others.
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521:) that protrude out of the bottom of the ship. Each blade can rotate itself around a vertical axis. The internal mechanism changes the angle of attack of the blades in sync with the rotation of the plate, so that each blade can provide thrust in any direction, similar to the collective pitch control and cyclic in a helicopter.
579:, winner of the Maritime Innovation Award at the Dutch Maritime Innovation Awards Gala in 2006. It adds a pair of interlocking rings to the body of the tug, the inner on the boat, the outer on the ship by winch or towing hook. Since the towing point rotates freely, the tug is very difficult to capsize.
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The
Tugboat Roundup is a gathering of tugboats and other vessels in celebration of maritime industry. The Waterford Tugboat Roundup is held in the late summer at the confluence of the Hudson and Mohawk Rivers in Waterford, New York. The tugs featured are river tugs and other tugs re-purposed to serve
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The Kort nozzle is a sturdy cylindrical structure around a special propeller having minimum clearance between the propeller blades and the inner wall of the Kort nozzle. The thrust-to-power ratio is enhanced because the water approaches the propeller in a linear configuration and exits the nozzle the
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designs for navigation without their barges attached. Vessels in this category are legally considered to be ships rather than tugboats and barges must be staffed accordingly. These vessels must show navigation lights compliant with those required of ships rather than those required of tugboats and
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are made of high-abrasion-resistance rubber with good resilience properties. They are very popular with small port craft owners and tug owners. These fenders are generally made from cut pieces of vehicle tires strung together. Often the fendering on the sides of the tug is composed of large heavy
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tugboats that are employed exclusively as ship assist vessels are generally smaller and their width-to-length ratio is often higher, due to the need for the tugs' wheelhouse to avoid contact with the hull of a ship, which may have a pronounced rake at the bow and stern. In some ports there is a
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The "notch tug" can be secured by way of cables, or more commonly in recent times, synthetic lines that run from the stern of the tug to the stern of the barge. This configuration is generally used in inland waters where sea and swell are minimal because of the danger of parting the push wires.
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proliferated thereafter and were a common sight for a century. In the 1870s schooner hulls were converted to screw tugs. Compound steam engines and scotch boilers provided 300 Indicated Horse Power. Steam tugs were put to use in every harbour of the world towing and ship berthing.
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or pushboats. Their hull designs would make open ocean operations dangerous. River tugs usually do not have any significant hawser or winch. Their hulls feature a flat front or bow to line up with the rectangular stern of the barge, often with large pushing knees.
432:. The largest commercial harbour tugboats in the 2000s–2010s, used for towing container ships or similar, had around 60 to 65 short tons-force (530–580 kN) of bollard pull, which is described as 15 short tons-force (130 kN) above "normal" tugboats.
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and was occasionally used in tugs because of its maneuverability. After World War II it was also linked to safety due to the development of the Voith Water
Tractor, a tugboat configuration that could not be pulled over by its tow. In the late 1950s, the
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834:. Tugger follows Crowe as he engages various people in physical conflicts, providing emotional support and comic relief. At one point Tugger even attempts to commit suicide, upon being forced to hear Russell Crowe's new musical composition.
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connecting systems. ATBs are generally staffed as a large tugboat, with between seven and nine crew members. The typical
American ATB displays navigational lights of a towing vessel pushing ahead, as described in the 1972
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harbour on the occasion of the festival commemorating the anniversary of the establishment of a port in
Hamburg. On a weekend in May, eight tugboats perform choreographed movements for about an hour to the tunes of
959:. He's rejected by the tugboat community and dejectedly drifts out to sea, where he accidentally discovers a shipwrecked liner and a chance to prove his worth. This story was animated as part of the Disney movie
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mechanically instead of converting the engine output to power electric motors, as is common for diesel-electric locomotives. For safety, tugboat engines often feature two of each critical part for redundancy.
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488:, etc. These propulsion systems are used on tugboats designed for tasks such as ship docking and marine construction. Conventional propeller/rudder configurations are more efficient for port-to-port towing.
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258:"Articulated tug and barge" (ATB) units also utilize mechanical means to connect to their barges. The tug slips into a notch in the stern and is attached by a hinged connection, becoming an
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The cycloidal propeller is a circular plate mounted on the underside of the hull, rotating around a vertical axis with a circular array of vertical blades (in the shape of
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Tugboats are highly manoeuvrable, and various propulsion systems have been developed to increase manoeuvrability and increase safety. The earliest tugs were fitted with
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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
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1903:. A gorgeously detailed guide to the evolution, design, and role of tugboats, from the earliest days of steam to today’s most advanced ocean-going workboats.
416:) of 0.35 to 1.20, whereas large tugs typically are 2.20 to 4.50 and small harbour-tugs 4.0 to 9.5. The engines are often the same as those used in railroad
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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 compared to wire cable.
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451:(see below) have been added to increase thrust-to-power ratio. This was followed by the nozzle-rudder, which omitted the need for a conventional
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400:), but larger boats (used in deep waters) can have power ratings up to 20,000 kW (~ 27,200 hp). Tugboats usually have an extreme
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that lock together in such a rigid and strong method as to be certified as such by authorities (classification societies) such as the
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series, follows the adventures of a young toy tugboat who seeks a life beyond the confines of a tub inside his owner's toy store.
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or several others. These units stay combined under virtually any sea conditions and the tugs usually have poor
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900:, was made into a Dutch miniseries in 1978 and concerned the dangers faced by the crews of Dutch salvage tugs.
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1419:] (in Danish). Vol. 2. København: A/S Forlaget for Faglitteratur København/Oslo. pp. 163–190.
955:, is a children's story of an anthropomorphic tugboat child, who wants to help tow ships in a harbour near
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that manoeuvres other vessels by pushing or pulling them, with direct contact or a tow line. These
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in circumstances where they cannot or should not move under their own power, such as in crowded
1939:, May 1930, article on docking large ships in the first half of the 20th century using tugboats
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1672:"Schlepperballett: Kaiserwalzer der Kolosse – SPIEGEL ONLINE – Nachrichten – SPIEGEL TV"
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The "integral unit", or "integrated tug and barge" (ITB), comprises specially designed
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South
African Naval tugs perform a "ballet" when welcoming a new member of the fleet.
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Seagoing tugs (deep-sea tugs or ocean tugboats) fall into four basic categories:
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196:(1,255 tons, 205 ft), which towed a nuclear depth charge as it was detonated in
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requirement for certain numbers and sizes of tugboats for port operations with
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same way. The Kort nozzle is named after its inventor, but many brands exist.
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in San
Francisco Bay, California, 1950s. On the bow is a traditional rope
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A tugboat is typically rated by its engine's power output and its overall
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1855:/ Gordon Newell – Superior Publishing Company 1957, Seattle Washington.
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472:) was developed. Although sometimes referred to as the Aquamaster
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941:, features the narrator captaining a fleet of tugs in peace-time.
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1972:
University of
Wisconsin–La Crosse Historic Steamboat Photographs
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Nautical terminology specific to towboating on inland waterways.
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Massachusetts Office of
Coastal Zone Management, Coastlines 2007
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To date, there have been four children's shows revolving around
125:
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1997:
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tells the tale of a legendary North
Atlantic salvage tug, the
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1510:"Tugboat Fender Types and Application - Marine Fender System"
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magazine stories featuring the female captain of the tugboat
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987:, which also deals with salvage tugs in the North Atlantic.
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Boat that maneuvers other vessels by pushing or towing them
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447:, but these were soon replaced by propeller-driven tugs.
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1928:
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Port
Designer's Handbook: Recommendations and guidelines
737:, a series depicting the life of tugboats in the 1920s.
1480:"Western Marine to build tugboat, vessel for Ctg port"
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Since 1980, an annual tugboat ballet has been held in
388:
Tugboat diesel engines typically produce 500 to 2,500
41:"Tugs" redirects here. For the television series, see
1893:
Tugboats Illustrated History, Technology, Seamanship
1607:"In search of the toughest tug," by Laurel Graeber,
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1842:/ Donal Baird – Vanwell Publishing, 277 p., 2003 –
928:(1967), about the captain of a rescue tug during a
913:during World War II, was made into a film entitled
753:In the 1975's Soviet short animation musical film
2195:Floating production storage and offloading (FPSO)
1876:. Florissant, MO: J.R. Simpson & Associates.
794:in 2015, with a Welsh-language version airing on
740:An American adaptation using edited footage from
587:Vintage tugboat races have been held annually in
1861:/ George H. Reid – Cornell Maritime Press, 1992.
1840:Under Tow: A Canadian History of Tugs and Towing
759:a tugboat sang a song: "Through a harbour area"
611:, and the Great Tugboat Race and Parade on the
104:into port at Marcus Hook on the Delaware River.
2009:
1874:A riverman's lexicon : in Lehman's terms
1836:/ Virginia Thorndike – Down East Books, 2004.
8:
1834:On Tugboats: Stories of Work and Life Aboard
1194:towing a barge in the locks at Kiel-Holtenau
412:and passenger ships have a P:T-ratio (in kW:
1746:"Jan de Hartog, 88, Author of His Own Life"
1056:German harbour-tug and DDR quick-freighter
832:Fightin' Round The World with Russell Crowe
2016:
2002:
1994:
1924:Beacon Finland Ltd JAK-ATB Coupling System
1206:Ship surrounded by tug boats, Sydney, 1942
820:The New Terrance and Phillip Movie Trailer
30:"Tug" redirects here. For other uses, see
2446:List of merchant navy capacity by country
1624:. tugrace.com. 2013-06-22. Archived from
879:wrote numerous nautical novels, first in
1895:. New York: W. W. Norton & Company.
1371:"How Pygmy Tugboats Dock a Giant Liner."
1363:
1008:with tugboats, doing sea trials in 1912
995:
694:(1945). The Canadian television series
1794:"Hartog, Jan De [1914 – 2002]"
262:. ATBs generally utilize Intercon and
1411:Poulsen, B Lund; et al. (1971).
1390:. Thomas Telford Books. p. 116.
1155:assisting a tug and barge docking in
148:. Some are ocean-going, and some are
7:
649:on the New York State Canal System.
951:(1939), written and illustrated by
459:(see below) was developed prior to
336:River tugs are also referred to as
1934:"Docking The World's Great Liners"
25:
2441:International Chamber of Shipping
2289:Anchor handling tug supply vessel
1586:. Portseattle.org. Archived from
1044:Dutch river tugboat "Mascotte II"
299:Compared with seagoing tugboats,
160:, which were later superseded by
136:, or cannot move at all, such as
2083:
1555:"Novatug.nl product information"
1441:"The Workhorse of the Waterways"
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640:and other sorts of dance music.
1820:Jane's Ocean Technology 1979–80
1417:The Technological Encyclopaedia
697:The Adventures of Tugboat Annie
662:was the subject of a series of
156:. Early models were powered by
676:, later featured in the films
1:
1486:. 4 June 2012. Archived from
932:, sold over a million copies.
805:"Tugger" is a tugboat in the
291:in 2011, pictured in 2018 in
287:, a Danish tugboat, built in
1292:American Waterways Operators
240:Lloyd's Register of Shipping
1960:Tugboat Enthusiasts Society
1822:/ Jane's Yearbooks, 1979 –
1697:"Waterford Tugboat Roundup"
476:system, many brands exist:
244:Indian Register of Shipping
236:American Bureau of Shipping
2498:
1955:NYC's Annual Tugboat Races
1929:Compagnie Maritime Chambon
1872:Lehman, Charles F (2009).
775:Animated preschool series
510:
495:
420:, but typically drive the
172:, especially in harbours.
168:water jets, which help in
40:
29:
2081:
1989:Waterford Tugboat Roundup
1984:Voith-Schneider Propeller
1919:At the Port of Felixstowe
1678:. Spiegel.de. 19 May 2002
1386:Thoresen, Carl A (2003).
1312:Direct methanol fuel cell
1255:Tugboat Delta Cathryn at
842:(Alphabetical by author)
685:Tugboat Annie Sails Again
209:Articulated tug and barge
1647:"The Great Tugboat Race"
1024:in tug-operation (3,600
781:started broadcasting on
756:В порту/ In the sea port
32:Tugboat (disambiguation)
2268:Roll-on/roll-off (RORO)
2167:Roll-on/roll-off (RORO)
1376:, March 1930, p. 22-23.
1374:Popular Science Monthly
1239:Tugboat VB Malabata in
860:and first published in
762:One of the creators of
2309:Platform supply vessel
2122:Coastal trading vessel
1891:Farrell, Paul (2016).
1798:New York State Library
1744:(September 24, 2002).
727:In the late 1980s, 13
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371:
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212:
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105:
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2294:Diving support vessel
1943:Intercon ATB Couplers
1439:Bilinski, Marcie B.:
1257:Port of San Francisco
1157:Rogers City, Michigan
1123:in Ystad harbour 2019
778:Toot the Tiny Tugboat
711:
691:Captain Tugboat Annie
665:Saturday Evening Post
626:
605:New York Tugboat Race
532:
439:Diagram of components
438:
361:
319:
283:
207:
188:
91:
76:
54:
2299:Emergency tow vessel
1699:. Tugboatroundup.com
1454:"Rotor Tug "RT Zoe""
1218:Paddlewheel tugboat
1020:Swedish harbour tug
846:The children's book
822:" as a sidekick for
814:. He appears in the
700:was filmed in 1957.
320:River tug pushing a
100:push the LPG tanker
98:McAllister Responder
36:Tug (disambiguation)
2477:Port infrastructure
2426:Nautical operations
2370:Floating restaurant
2152:Lighter aboard ship
1914:A site for boatmen.
1460:. 13 September 2006
1030:gross register tons
980:Foundation Franklin
974:The Grey Seas Under
896:, written prior to
866:Little Golden Books
856:and illustrated by
704:Film and television
589:Olympia, Washington
457:cycloidal propeller
374:The first tugboat,
260:articulated vehicle
2380:Merchant submarine
2055:Maritime transport
1977:2010-09-27 at the
1965:2013-09-10 at the
1948:2012-03-18 at the
1750:The New York Times
1611:, August 29, 2008.
985:The Serpent's Coil
849:Scuffy the Tugboat
766:went on to direct
747:Salty's Lighthouse
717:
653:In popular culture
629:
575:innovation is the
557:
549:Oakland Bay Bridge
441:
372:
334:
297:
248:Det Norske Veritas
213:
202:
140:, disabled ships,
106:
86:
78:Justine McAllister
71:
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2157:Livestock carrier
2060:Freight transport
1937:Popular Mechanics
1901:978-0-393-06931-0
1883:978-0-9841503-0-4
1718:"Hollands glorie"
1584:"Port of Seattle"
1525:"Novatug.nl news"
983:. He later wrote
935:Its 1986 sequel,
854:Gertrude Crampton
828:television series
362:A tugboat on the
359:
255:vessels undertow.
16:(Redirected from
2489:
2405:Semi-submersible
2390:Pipe-laying ship
2087:
2070:Maritime history
2018:
2011:
2004:
1995:
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1859:Primer of Towing
1853:Pacific Tugboats
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1590:on July 23, 2011
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1490:on 15 April 2016
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826:in a fictitious
769:Theodore Tugboat
713:Theodore Tugboat
613:St. Mary's River
536:(foreground), a
498:Ducted propeller
470:azimuth thruster
377:Charlotte Dundas
360:
326:British Columbia
198:Operation Wigwam
80:, a tug boat in
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2205:Hydrogen tanker
2190:Chemical tanker
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2137:Heavy-lift ship
2088:
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2065:Merchant marine
2028:
2022:
1979:Wayback Machine
1967:Wayback Machine
1950:Wayback Machine
1910:
1884:
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1866:Further reading
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930:Murmansk Convoy
911:English Channel
893:Hollands Glorie
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790:in 2014 and on
721:anthropomorphic
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560:Tugboat fenders
544:David C. Shanks
540:tug, alongside
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408:-ratio; normal
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1653:on 2011-08-28
1652:
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1628:on 2014-04-17
1627:
1623:
1622:"tugrace.com"
1617:
1614:
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1589:
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1576:
1565:on 2008-01-19
1564:
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1553:novatugprod.
1549:
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1535:on 2007-09-08
1534:
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1523:novatugnews.
1519:
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1397:0-7277-3228-5
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1287:Admiralty tug
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855:
852:, written by
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824:Russell Crowe
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686:
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679:Tugboat Annie
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659:Tugboat Annie
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609:Detroit River
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538:type V2-ME-A1
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118:marine vessel
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90:
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68:
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61:
60:
53:
47:
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37:
33:
19:
2350:Crane vessel
2328:
2142:Hopper barge
2107:Bulk carrier
1936:
1873:
1858:
1852:
1839:
1833:
1819:
1801:. Retrieved
1788:
1777:. Retrieved
1764:
1753:. Retrieved
1749:
1736:
1725:. Retrieved
1712:
1701:. Retrieved
1691:
1680:. Retrieved
1675:
1666:
1655:. Retrieved
1651:the original
1641:
1630:. Retrieved
1626:the original
1616:
1608:
1603:
1592:. Retrieved
1588:the original
1578:
1567:. Retrieved
1563:the original
1558:
1548:
1537:. Retrieved
1533:the original
1528:
1518:
1504:
1492:. Retrieved
1488:the original
1483:
1474:
1462:. Retrieved
1457:
1448:
1435:
1416:
1412:
1406:
1387:
1381:
1373:
1366:
1302:Barrier Boat
1219:
1191:
1174:arriving at
1171:
1152:
1120:
1107:harbour 2018
1100:
1077:
1076:The tugboat
1057:
1032: (GRT))
1021:
984:
978:
972:
969:Farley Mowat
961:
946:
936:
923:
914:
904:
903:The novella
898:World War II
891:
847:
841:
831:
809:
804:
785:
776:
767:
763:
754:
745:
741:
733:
718:
695:
689:
683:
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669:
663:
657:
656:
647:
630:
601:Hudson River
586:
577:carousel tug
570:
558:
543:
533:
516:
501:
461:World War II
449:Kort nozzles
442:
430:bollard pull
427:
387:
375:
373:
335:
298:
284:
214:
192:
170:firefighting
164:. Many have
154:salvage tugs
113:
109:
107:
101:
97:
93:
77:
65:
58:
43:
2345:Cable layer
2338:Other types
2319:Salvage tug
2273:Train ferry
2263:Ocean liner
2248:Cruiseferry
2243:Cruise ship
2238:Cargo liner
2233:Cable ferry
2210:LNG carrier
2200:Gas carrier
2172:Train ferry
2162:Reefer ship
1676:Der Spiegel
1353:Type V ship
1028:/ 453
962:Melody Time
948:Little Toot
925:The Captain
723:tugboats.
688:(1940) and
674:Puget Sound
593:Elliott Bay
492:Kort nozzle
474:or Schottel
418:locomotives
382:Paddle tugs
306:gas tankers
285:Svitzer Tyr
252:sea-keeping
150:icebreakers
46:(TV series)
2482:Ship types
2472:Boat types
2461:Categories
2375:Icebreaker
2258:Narrowboat
2215:Oil tanker
2117:Chain boat
2045:Cargo ship
1814:References
1803:2008-01-20
1779:2008-01-20
1755:2008-01-20
1742:Mel Gussow
1727:2008-01-20
1703:2022-03-08
1682:2012-02-18
1657:2012-06-13
1632:2014-03-23
1594:2012-02-18
1569:2008-01-18
1539:2008-01-18
1153:Nancy Anne
1137:oil tanker
922:The novel
890:The novel
883:, then in
838:Literature
811:South Park
792:Cartoonito
787:Milkshake!
744:followed:
542:USNS
519:hydrofoils
513:Cyclorotor
507:Cyclorotor
345:Propulsion
332:(May 2012)
189:Fleet tug
166:deluge gun
132:or narrow
2400:Riverboat
2360:Drillship
2225:Passenger
2112:Car float
2094:Dry cargo
2033:Overviews
1770:"The Key"
1494:19 August
1464:19 August
1192:Watergeus
1176:Rotterdam
1086:Australia
1058:Karl Marx
830:entitled
783:Channel 5
670:Narcissus
599:, on the
571:A recent
534:Red Cloud
478:Steerprop
422:propeller
330:Vancouver
264:Bludworth
142:log rafts
102:BW Volans
66:Maratanza
18:Fleet tug
2467:Tugboats
2410:Snagboat
2304:Fireboat
1975:Archived
1963:Archived
1946:Archived
1347:Switcher
1337:PS Comet
1327:HydroTug
1322:Fish tug
1265:See also
1151:Tugboat
1121:Baltsund
971:'s book
919:in 1958.
729:episodes
682:(1933),
644:Roundups
567:Carousel
482:Wärtsilä
338:towboats
322:log raft
181:Seagoing
55:Tugboat
2419:Related
2355:Dredger
2329:Tugboat
2282:Support
2182:Tankers
2127:Collier
2024:Modern
1559:Novatug
1529:Novatug
1241:Tangier
1119:Danish
1103:Tyr in
1101:Svitzer
1099:Danish
1064:harbour
1062:Rostock
1006:Titanic
992:Gallery
957:Hoboken
916:The Key
885:English
875:writer
816:episode
633:Hamburg
603:at the
597:Seattle
525:Fenders
466:Z-drive
406:tonnage
370:, Japan
301:harbour
295:harbour
276:Harbour
269:ColRegs
232:vessels
200:in 1955
130:harbors
110:tugboat
2324:Tender
2314:Pusher
1899:
1880:
1846:
1826:
1423:
1394:
1297:Azipod
1259:(2023)
1178:(1987)
1139:(VLCC)
906:Stella
619:Ballet
607:, the
455:. The
453:rudder
221:hawser
193:Tawasa
138:barges
134:canals
59:Teaser
2253:Ferry
2102:Barge
2050:Cargo
1415:[
1359:Notes
1105:Ystad
1078:Woona
881:Dutch
873:Dutch
638:waltz
583:Races
573:Dutch
410:cargo
402:power
368:Tokyo
328:near
312:River
293:Ystad
289:China
211:(ATB)
176:Types
144:, or
126:ships
122:boats
116:is a
2040:Ship
1897:ISBN
1878:ISBN
1844:ISBN
1824:ISBN
1774:IMDb
1722:IMDb
1496:2013
1466:2013
1421:ISBN
1392:ISBN
871:The
862:1946
764:Tugs
742:Tugs
734:TUGS
468:or (
191:USS
96:and
64:USS
57:CSS
44:Tugs
34:and
1224:in
1080:in
1060:at
799:Cyw
796:S4C
672:in
595:in
414:GRT
366:in
324:in
152:or
114:tug
112:or
2463::
1796:.
1772:.
1748:.
1720:.
1674:.
1557:.
1527:.
1482:.
1456:.
1084:,
1026:kW
887:.
615:.
484:,
480:,
398:hp
390:kW
246:,
242:,
238:,
108:A
2017:e
2010:t
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