In sailing and boating, a vessel's freeboard is the distance from the waterline to the upper deck level, measured at the lowest point of sheer where water can enter the boat or ship.[1] In commercial vessels, the latter criterion measured relative to the ship's load line, regardless of deck arrangements, is the mandated and regulated meaning.[2]
A graphical representation of the dimensions used to describe a ship. f is the freeboard.
In yachts, a low freeboard is often found on racing boats, for increased speed (by reducing weight and therefore drag). A higher freeboard will give more room in the cabin, but will increase weight and drag, compromising speed. A higher freeboard, such as used on ocean liners, also helps weather waves and so reduce the likelihood of being washed over by full water waves. A low-freeboard vessel is susceptible to taking in water in rough seas. Freighter ships and warships use high freeboard designs to increase internal volume, which also allows them to satisfy International Maritime Organization (IMO) damage stability regulations, due to increased reserve buoyancy.
Narco-submarine, a type of vessel that often is a surface ship with a very low freeboard.
Notes
^"IMO". 2008. Archived from the original on 2009-10-14. Retrieved 2008-04-16.
^"Dictionary.com definitions of "Freeboard"". from the original on 2008-04-16. Retrieved 2008-06-23.
References
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 life. Officers' Handbook (4th ed.). Centreville, MD: Cornell Maritime Press. ISBN0-87033-056-X.
January 21, 2023
freeboard, nautical, freeboard, redirects, here, specialist, skateboard, freeboard, skateboard, sailing, boating, vessel, freeboard, distance, from, waterline, upper, deck, level, measured, lowest, point, sheer, where, water, enter, boat, ship, commercial, ves. Freeboard redirects here For the specialist skateboard see Freeboard skateboard In sailing and boating a vessel s freeboard is the distance from the waterline to the upper deck level measured at the lowest point of sheer where water can enter the boat or ship 1 In commercial vessels the latter criterion measured relative to the ship s load line regardless of deck arrangements is the mandated and regulated meaning 2 A graphical representation of the dimensions used to describe a ship f is the freeboard In yachts a low freeboard is often found on racing boats for increased speed by reducing weight and therefore drag A higher freeboard will give more room in the cabin but will increase weight and drag compromising speed A higher freeboard such as used on ocean liners also helps weather waves and so reduce the likelihood of being washed over by full water waves A low freeboard vessel is susceptible to taking in water in rough seas Freighter ships and warships use high freeboard designs to increase internal volume which also allows them to satisfy International Maritime Organization IMO damage stability regulations due to increased reserve buoyancy See also EditFor the term as used in measuring sea ice see Sea ice thickness Narco submarine a type of vessel that often is a surface ship with a very low freeboard Notes Edit IMO 2008 Archived from the original on 2009 10 14 Retrieved 2008 04 16 Dictionary com definitions of Freeboard Archived from the original on 2008 04 16 Retrieved 2008 06 23 References EditHayler William B Keever John M 2003 American Merchant Seaman s Manual Cornell Maritime Pr ISBN 0 87033 549 9 Turpin Edward A McEwen William A 1980 Merchant Marine life Officers Handbook 4th ed Centreville MD Cornell Maritime Press ISBN 0 87033 056 X Retrieved from https en wikipedia org w index php title Freeboard nautical amp oldid 1120966710, wikipedia, wiki, book, books, library,
