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;
.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.
220.127.116.11 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
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
18.104.22.168 The loading conditions covered by the stability data should include:
.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.
22.214.171.124 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.