280-Vessel Stability / 748
Vessel Stabilit
y
BOS-PRD-07.900601
Table of Contents
1 P ur pose......................................................................................................................................................3 2 S c ope .........................................................................................................................................................3 3 Responsibilit y, a u tho r it y an d a cc o u ntabilit y .........................................................................................4 4 Des cr iption ................................................................................................................................................5 4.1 Instructions to Master ........................................................................................................................5 4.1.1 Precautions .................................................................................................................................5 4.1.2 Stability assessment ...................................................................................................................5 4.1.3 Simplified calculations ................................................................................................................6 4.1.4 Full direct calculations ................................................................................................................6 4.1.5 Loading software for stability calculations ..................................................................................6 4.1.6 Stability software installation and use.........................................................................................6 4.1.7 Stability software loading condition test......................................................................................7 4.1.8 Free surface effect......................................................................................................................7 4.1.9 Free surface interactions on stability ..........................................................................................7 4.1.10 Guarding against and preventing free surface effect..................................................................7 4.2 Cargo loading and discharge ............................................................................................................8 4.2.1 Liquid cargo ................................................................................................................................8 4.2.2 Ballast tanks................................................................................................................................8 4.2.3 Consumable tanks ......................................................................................................................9 4.2.4 Cargo tanks.................................................................................................................................9 4.2.5 Anti-roll tanks/flume tanks...........................................................................................................9 4.2.6 Anti-heel tanks ............................................................................................................................9 4.2.7 Bilges, voids and overflow tanks.................................................................................................9 4.2.8 Deck cargo – effect of entrapped water......................................................................................9 4.2.9 Watertight integrity....................................................................................................................10 4.3 Damage stability..............................................................................................................................10 4.3.1 Specific company instructions for assessing consequences of damage .................................10 4.3.2 Specific company instructions in case of damage....................................................................11 4.4 Entering dry dock ............................................................................................................................11 4.5 Roll stabilisation systems ................................................................................................................11 4.6 Icing .................................................................................................................................................11 4.7 Anchor handling and towing operations ..........................................................................................12 Re c o rd s............................................................................................................................................................12 5 Relate d d o cu ments.................................................................................................................................12 6 Te r ms an d d efinitions ............................................................................................................................12 7 Revie w, app r oval , r evision an d i d entifi c ation of c hanges .................................................................13Version 04. Original date: 22/06/2012. Version date: 31/12/2014. Valid version only on QMS site. Uncontrolled document when printed.
Procedure prepared by: BOS Operations Department Project Coordinator. Approved by: BOS Head of Operations. Validated by: BOS Quality Representative.
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