DAMAGE STABILITY ASSESSMENT ON OIL, CHEMICAL and GAS TANKERS

Jul 7th, 2015
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Columbus State University
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Loading computer programs are normally provided for assessing compliance with longitudinal strength criteria during loading, and are often additionally approved for assessing intact stability, but not always approved for assessing damage stability. Surveyors usually check for approved stability books, but rarely check correct use of stability computers. 1.2 Conditions of loading assessed by using computers approved for intact stability assessment, rather than using the approved conditions available in the approved stability book, may appear to ship’s officers to give satisfactory results even though the conditions have not been assessed against the damage stability requirements. At best this is misleading and at worst could be dangerously unsafe in the event of damage, and ship’s officers may be unaware of these limitations.

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***DRAFT***MARINE GUIDANCE NOTEMGN xxxx(M)DAMAGE STABILITY ASSESSMENT ON OIL, CHEMICAL and GAS TANKERSNotice to Shipowners, Ship masters, Ship officers, Charters, Agents, Terminal Operators, and Surveyors.SummaryThis guidance note advises on the dangers of relying on stability computer programs instead of formally approved stability information to carry out stability assessment prior to departure as not all approved stability computer programs take account of damage stability requirements.1. IntroductionUse of Loading Computers1.1Loading computer programs are norm

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