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watercraft
please note:
- the content below is remote from Wikipedia
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{{Short description|Water-borne conveyance}}File:Portland_Pudgy_safety_dinghy,_rowing.JPG|thumb|A dinghydinghyFile:Andean raft, 1748.jpg|thumb|A 17th-century sailing raft in (Paita]] harbour (Peru).BOOK, McGrail, Sean, Early ships and seafaring : water transport beyond Europe, 2014, Barnsley, 9781473825598, {{rp|198}})A watercraft or waterborne vessel is any vehicle designed for travel across or through water bodies, such as a boat, ship, hovercraft, submersible or submarine.- the content below is remote from Wikipedia
- it has been imported raw for GetWiki
Types
Watercraft can be grouped into surface vessels, which include ships, yachts, boats, hydroplanes, wingships, unmanned surface vehicles, sailboards and human-powered craft such as rafts, canoes, kayaks and paddleboards;BOOK, Thomas, Isabel,books.google.com/books?id=v8kTAgAAQBAJ&q=types+of+watercraft, First Book of Ships and Boats, 2014-01-01, A&C Black, 978-1-4729-0105-7, en, underwater vessels, which include submarines, submersibles, unmanned underwater vehicles (UUVs), wet subs and diver propulsion vehicles; and amphibious vehicles, which include hovercraft, car boats, amphibious ATVs and seaplanes. Many of these watercraft have a variety of subcategories and are used for different needs and applications.Design
The design of watercraft requires a tradeoff among internal capacity (tonnage), speed and seaworthiness. Tonnage is important for transport of goods, speed is important for warships and racing vessels, and the degree of seaworthiness varies according to the bodies of water on which a watercraft is used. Regulations apply to larger watercraft, to avoid foundering at sea and other problems. Design technologies include the use of computer modeling and ship model basin testing before construction.BOOK, Tupper, Eric, Introduction to Naval Architecture, Butterworth-Heinemann, 1996, Oxford, England,Propulsion
File:Lifeboat.17-31.underway.arp.jpg|thumb|A Severn-class lifeboat in Poole Harbour, Dorset, EnglandEnglandWatercraft propulsion can be divided into five categories.- Water power is used by drifting with a river current or a tidal stream. An anchor or weight may be lowered to provide enough steerage way to keep in the best part of the current (as in drudging) or paddles or poles might be used to keep position.
- Human effort is used through a pole pushing against the bottom of shallow water, or paddles or oars operating in the surface of the water.
- Wind power is used by sails
- Towing is used, either from the land, such as the bank of a canal, with the motive power provided by draught animals, humans or machinery, or one watercraft may tow another.
- Mechanical propulsion uses a motor whose power is derived from burning a fuel or stored energy such as batteries. This power is commonly converted into propulsion by propellers or by water jets, with paddle wheels being a largely historical method.BOOK, McGrail, Sean, Early ships and seafaring : European water transport, 2014, Pen and Sword Archaeology, South Yorkshire, England, 9781781593929, {{rp|33}}
See also
{{div col|colwidth=30em}} {{div col end}}References
{{Reflist}}External links
{{Wiktionary|watercraft|vessel}}{{commons category}}- The Canadian Museum of Civilization - Native Watercraft in Canada
- A History of Recreational Small Watercraft {{Webarchive|url=https://web.archive.org/web/20131202225802www.sciencetech.technomuses.ca/english/collection/watercraft.cfm |date=2013-12-02 }}
- Recreational Watercraft
- content above as imported from Wikipedia
- "watercraft" does not exist on GetWiki (yet)
- time: 1:20am EDT - Wed, May 22 2024
- "watercraft" does not exist on GetWiki (yet)
- time: 1:20am EDT - Wed, May 22 2024
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