Stability data should include the data and information outlined here under.
3.1.1 General information:
.1 ship's name;
.2 type of ship (i.e. bulk carrier);
.3 name of builders and new building number;
.4 date of build (keel laying) or conversion;
.5 class notation;
.6 nationality, port of registry and IMO number;
.7 principal dimensions (length, breadth and depth);
.8 type of load line assigned (type A, B, B-60, etc);
.9 maximum mean permissible draught corresponding to the summer freeboard assigned;
.10 maximummeanpermissibledraughtcorrespondingtothesummertimberfreeboard
(if appropriate);
.11 displacement in salt water (at stateddensity) corresponding to .9 and .10 at the designed (level) trim;
.12 maximum permissible draught at the forward perpendicular for bow height considerations;
.13 theminimumrecommendeddraughtattheforwardperpendicularforanysailing condition;
.14 stability limitations of the ship's design, both for loading operation and, where applicable, associated with undertaking ballast water exchange at sea; and
.15 lightship particulars obtained frominclination test or lightship survey.
3.1.2 Ascaledarrangementdrawingshowingclearlytheuseanddistributionofthevariouscargo compartments, tanks, stores as well as machinery and accommodation spaces. Names of compartments used in the text of the document should be clearly indicated.
3.1.3 Atableofcapacitieswithcentresofvolume(longitudinal,verticalandtransverse)forevery compartmentavailableforthecarriageofcargo,fuel,stores,feedwater,domesticwaterandwater ballast. Whereapplicable,suchasforcargoholds,tablesorcurvesgivingcapacityandcentreof volumeasfunctionsofcompartmentdepthorullageshouldbeincluded. Whenullageisused,the ullagereferencepointshouldbeclearlystated. Thereferenceplanesandthepositivedirectioninall sixdegreesoffreedomforcentresofvolumeshouldbethesameasthoseusedforanycomputeror other information provided as an aid to the safe loading of the ship.
3.1.4 Freesurfaceeffecttablesand/orcurvesforeverytankandcargoholdthatmaycontainliquid, asafunctionofvolumeshowingtheeffectonthestabilityoftheshipofliquidsinpartiallyfilled tanks. Thesetables/curvesshouldgivethefreesurfacemomentsnecessarytocorrecttheinitial metacentricheightandthosetocorrecttherightinglevervalueswhentheshipisinclined. Inthe caseoftankscontainingliquidswhichmaybeconsumed,dischargedortransferredtoandfromother compartments while the ship is at sea, including anti-rolling tanks and/or heeling tanks, the maximumfreesurfacemomentswhichmaybedevelopedshouldbegiven. Whenholdsordeep tankscontainingliquidsaremaintainedpartiallyfilledwhiletheshipisatsea,thefreesurface moments used may be based on the actual quantity of fluid contained.
3.1.5 Hydrostaticparticularsfortheshipatdesignedtrim,incurveortabulatedform,toabaseof meandraughtmeasuredtothebottomofthekeeloverarangecoveringthelightshipandmaximum draughts. Whentabulated,theseshouldcorrespondtoevenly-roundedunitsofdraughtatintervals appropriate to the size of ship. The particulars should include:
.1 extreme displacement in salt water at stated density;
.2 immersion (displacement per unit interval of draught);
.3 moment to change trimone unit;
.4 transverse metacentre height above baseline;
.5 transverse centre of buoyancy;
.6 vertical centre of buoyancy;
.7 longitudinal centre of floatation; and
.8 longitudinal centre of buoyancy.
Positionofreferenceplanesshouldbestatedinthecaseofitemsspecifiedinparagraphs 3.1.5.4to
3.1.5.8 and should be the same as the corresponding reference planes for centres of gravity.
3.1.6 Details of load line, draught marks and deadweight particulars. A diagram should be provided showing the load line marks including:
.1 position of the deck line relative to the upper extreme of the ship's depth;
.2 draught to the summer load waterline;
.3 draught to the summer timber load waterline (if appropriate);
.4 corresponding freeboards,
this or other diagramor tabular presentation should also give the relationships between:
.5 mean draught;
.6 extreme displacement;
.7 immersion (displacement per unit interval of draught); and
.8 deadweight.
Thepositionsofthedraughtmarksshouldbedefinedinrelationtoboththeship'sperpendiculars and the longitudinal reference plane mentioned above.
3.1.7 Formstabilityparticulars(Crosscurvesofstability).Dataintheformofcurvesortables showingtherelationshipbetweenformrightinglever,angleofheelanddisplacementatthedesigned trim over the full operational range of displacement. Where the operating trim or form and arrangementoftheshiparesuchthatachangeintrimhasanappreciableeffectonrightingarms, additionalformstabilitydatashouldbeincludedforasuitablerangeoftrim. Theformstability informationshouldbepresentedinaformthatenablesrightingarmstobereadilydeterminedtothe nearest centimetre.
3.1.8 Set of stability criteria required by the Administration.
3.1.9 Limiting envelope curves resulting from intact stability and damage stability, when appropriate. ThesecurvesshouldbeclearlystatedasbeingGMrequiredcurvesorKG maximum curves.
3.1.10 Auxiliarydatawhicharenecessarytoprovecompliancewiththerelevantstabilitycriteria and, when appropriate, icing data.
3.1.11 Master's instructions should precisely and unambiguously detail how the information providedinthestabilitydataandelsewhereistobeusedtoobtainthedraught,trimandstability characteristicsofanewloadingconditionanddeterminewhetherthatconditionfulfilstherelevant stability criteria.
3.1.12 Loading conditions
3.1.12.1 The loading conditions covered by the stability data should include:
.1 lightship;
.2 docking;
.3 fullyloadeddeparture,withcargohomogeneously distributed throughout all cargo spaces and with full stores and fuel;
.4 fully loaded arrival, with cargo homogeneously distributed throughout all cargo spaces and with 10% stores and fuel remaining;
.5 ballast departure, without cargo but with full stores and fuel;
.6 ballast arrival, without cargo but with 10% stores and fuel remaining;
.7 otherdepartureandarrivalconditionstypicaloftheship'sintendedservice,suchas alternate hold loading, ore loading, deep ballast, etc. as applicable; and
.8 where appropriate, other conditions used for ballast water exchange.
3.1.12.2 For each loading condition, the following should be shown:
.1 asketchoftheshipindicating,pictorially,themainitemsofdeadweightincludedin the displacement;
.2 atableshowingthelightshipparticulars,thedistributionofallcomponentsofthe deadweight,thepositionsoftheircentresrelativetothedefinedreferenceplanes, correspondingstaticmomentsandasummationgivingtheresultwhichshouldshow the full displacement mass and the position of its centre;
.3 atablelistingthefreesurfaceeffectsofliquidsinallcompartmentswhichmaybe partially filled;
.4 a diagramshowing the curve of righting levers (GZ), corrected for free surface effects,plottedagainstangleofinclination.Thescalesusedshouldbethesamefor each loading condition; and
.5 a summary of the condition giving:
.5.1 displacement and related sea water density;
.5.2 corresponding draught at longitudinal centre of floatation;
.5.3 corresponding draught at freeboard mark;
.5.4 moment to change trimone unit;
.5.5 longitudinal and transverse positions of centre of buoyancy;
.5.6 longitudinal and transverse positions of centre of gravity;
.5.7 trimming lever;
.5.8 total trimover perpendiculars;
.5.9 longitudinal position of centre of floatation;
.5.10 trimat forward perpendicular;
.5.11 trimat aft perpendicular;
.5.12 draught at forward perpendicular;
.5.13 draught at aft perpendicular;
.5.14 draught at forward draught mark;
.5.15 draught at aft draught mark;
.5.16 mean draught amidships;
.5.17 total free surface moment for initial stability;
.5.18 vertical position of the transverse metacentre;
.5.19 verticalpositionoftheship'scentreofgravity,bothuncorrectedandcorrectedfor free surface effects; and
.5.20 a statement giving the limiting value or values of stability parameters for each stability criterion together with corresponding values achieved.