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davit

 
Dictionary: dav·it   (dăv'ĭt, dā'vĭt) pronunciation
n.
Any of various types of small cranes that project over the side of a ship and are used to hoist boats, anchors, and cargo.

[Middle English daviot, from Norman French daviot, diminutive of Davi, David.]


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[ܒdævit; ܒdā-]

ˈdævit; ˈdā- n. a small crane on board a ship, especially one of a pair for suspending or lowering a lifeboat.

See the Introduction, Abbreviations and Pronunciation for further details.

Architecture: davit
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A movable crane, 1 that projects over the side of a building.


Obscure Words: davit
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a crane that projects over the side of a ship hatchway for moving cargo

(DOD) A small crane on a vessel that is used to raise and lower small boats, such as lifeboats, an LCM-8 on landing ship, tanks, side loadable warping tugs, or causeway sections.

Wikipedia: Davit
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For the name of a person, see David.

A davit, (dā'vət, dă'vət), is a structure, usually made of steel, which is used to lower things over an edge of a long drop off such as lowering a maintenance trapeze down a building or launching a lifeboat over the side of a ship.

The development of the davit from its original "goose neck form" to the current devices advanced greatly when A.P. Schat patented a number of systems in 1926 that allowed the lifeboat to glide over obstructions on a ships hull known as the "Schat Skate". This was followed by a self-braking winch system that allowed the lifeboat to be lowered evenly and then the modern davit was invented.

Davits have always been designed to fit into deck spaces that the naval architects deemed necessary and a variety of designs emerged:

  • GRA - Gravity Roller track davit (Miranda) - usually above promenade decks.
  • SPG - Single pivot gravity davit (Radial) - for many different deck spaces.
  • FFD - Free Fall davit - For Free Fall Lifeboats on stern
  • QD - Quadrantal Davit - Old mechanical style, often hand cranked into outboard position

The standard became so common that shipyard specifications call for Schat type davits from whatever source.

Davits can also refer to single mechanical arms with a winch for lowering life rafts and raising spare parts onto a vessel.

Recent developments are based on aft-launched ramps where the lifeboat is allowed to free fall, as opposed to being lowered by a winch, into the ocean. Thus Free Fall Lifeboat. Similar systems developed by Schat companies are used on offshore oil/gas rigs placed around the structure.


Translations: Davit
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Dansk (Danish)
n. - david, jollebom

Nederlands (Dutch)
davit, kraanbalk

Français (French)
n. - (Naut) bossoir

Deutsch (German)
n. - (mar.) (Boots)davit (Kran)

Ελληνική (Greek)
n. - (ναυτ.) επωτίδα, καπόνι

Italiano (Italian)
gru di imbarcazione

Português (Portuguese)
n. - turco (m) (Náut.)

Русский (Russian)
шлюпбалка

Español (Spanish)
n. - pescante

Svenska (Swedish)
n. - dävert (sjö)

中文(简体)(Chinese (Simplified))
吊艇柱, 吊柱

中文(繁體)(Chinese (Traditional))
n. - 吊艇柱, 吊柱

한국어 (Korean)
n. - (닻을) 다는 기둥

日本語 (Japanese)
n. - 鉤柱, ダビット

العربيه (Arabic)
‏(الاسم) رافعه من قضيبين على جانب السفينه تستخدم لرفع أو خفض قارب صغير أو مرساة‏

עברית (Hebrew)
n. - ‮מנוף סירות על סיפון אוניה, מדלה‬


 
 
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Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
US Military Dictionary. The Oxford Essential Dictionary of the U.S. Military. Copyright © 2001, 2002 by Oxford University Press, Inc. All rights reserved.  Read more
Architecture. McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc. All rights reserved.  Read more
Obscure Words. © 2008 by Michael A. Fischer http://home.comcast.net/~wwftd Read more
Military Dictionary. US Department of Defense Dictionary of Military and Associated Words, 2003.  Read more
Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Davit" Read more
Translations. Copyright © 2007, WizCom Technologies Ltd. All rights reserved.  Read more