Length overall(LOA,o/a,o.a.oroa) is the maximum length of a vessel'shullmeasured parallel to the waterline. This length is important while docking the ship. It is the most commonly used way of expressing the size of a ship, and is also used for calculating the cost of amarinaberth[1](for example, £2.50 per metre LOA).
LOA is usually measured on the hull alone.[2]Forsailing ships,this mayexcludethebowspritand other fittings added to the hull. This is how some racing boats andtall shipsuse the term LOA.[3]However, other sources may include bowsprits in LOA.[4]Confusingly, LOA has different meanings.[5][6]"Sparred length", "Total length including bowsprit", "Mooring length" and "LOA including bowsprit" are other expressions that might indicate the full length of a sailing ship.
LOD
editOften used to distinguish between the length of a vessel including projections (e.g. bow sprits, etc.) from the length of the hull itself, theLength on DeckorLODis often reported. This is especially useful for smaller sailing vessels, as their LOA can be significantly different from their LOD.[7][8]
LOH
editInISO8666 for small boats, there is a definition ofLOH,orlength of hull.[9]This may be shorter than a vessel's LOA, because it excludes other parts attached to the hull, such asbowsprits.
LWL
editAnother measure of length is LWL (loaded waterline length) which is more useful in assessing a vessel's performance. In some cases (particularly oldyachtsor vessels withbowsprits) LWL can be considerably shorter than LOA.
See also
editReferences
editCitations
edit- ^ "Boat Moorage".Mosquito Creek Marina.Retrieved2009-07-13.
- ^"Definitions of: Boat, Yacht, Small Craft, and Related Terms".Westlawn Institute of Marine Technology. Archived fromthe originalon 2010-01-23.Retrieved2009-07-13.
- ^ "Racing & Sailing Rules and Special Regulations"(PDF).Sail Training International. 2008. p. 2. Archived fromthe original(PDF)on 2009-09-02.
- ^Launer, Donald (2006).Dictionary of Nautical Acronyms and Abbreviations.Sheridan House, Inc. p. 64.ISBN978-1-57409-239-4.
- ^ Schäuffelen, Otmar (2005).Chapman great sailing ships of the world.Hearst Books. p. xix.ISBN978-1-58816-384-4.
- ^"Glossary".Wilh. Wilhelmsen ASA. Archived fromthe originalon 2009-05-24.Retrieved2009-07-18.
- ^Launer, Donald (2006).Dictionary of Nautical Acronyms and Abbreviations.Sheridan House, Inc. p. 64.ISBN978-1-57409-239-4.
- ^"The Dictionary of English Nautical Language".seatalk.info. Archived from the original on July 13, 2007.Retrieved2009-07-13.
{{cite web}}:CS1 maint: unfit URL (link) - ^"Advanced Sailboat Parameter Calculations & Checks".Product description.Hawaii Marine Templates.Retrieved2009-07-18.
Sources
edit- Hayler, William B.; Keever, John M. (2003).American Merchant Seaman's Manual.Cornell Maritime Pr.ISBN0-87033-549-9.
- Turpin, Edward A.; McEwen, William A. (1980).Merchant Marine Officers' Handbook(4th ed.). Centreville, MD: Cornell Maritime Press.ISBN0-87033-056-X.