Regulation 5-1

curves or tables of minimum operational metacentric height (GM) and maximum permissible trim versus draught which assures compliance with the intact and damage stability requirements where applicable, alternatively corresponding curves or tables of the maximum allowable vertical centre of gravity (KG) and maximum permissible trim versus draught, or with the equivalents of either of these curves or tables; [S 872/2019 wef 01/01/2020] (ii) instructions concerning the operation of cross-flooding arrangements; and (iii) all other data and aids which might be necessary to maintain the required intact stability and stability after damage. ( c ) The intact and damage stability information required by paragraph ( b ) shall be presented as consolidated data and encompass the full operating range of draught and trim. Applied trim values shall coincide in all stability information intended for use on board. Information not required for determination of stability and trim limits should be excluded from this information. [S 872/2019 wef 01/01/2020] ( d ) If the damage stability is calculated in accordance with Regulation 6 to Regulation 7-3 and, if applicable, with Regulation 8 and Regulation 9( h ), a stability limit curve is to be determined using linear interpolation between the minimum required GM assumed for each of the three draughts d s , d p and d l . When additional subdivision indices are calculated for different trims, a single envelope curve based on the minimum values from these calculations shall be presented. When it is intended to develop curves of maximum permissible KG it shall be ensured that the resulting maximum KG curves correspond with a linear variation of GM. [S 872/2019 wef 01/01/2020] ( e ) As an alternative to a single envelope curve, the calculations for additional trims may be carried out with one common GM for all of the trims assumed at each subdivision draught. The lowest values of each partial index A s , A p and A l across these trims shall then be used in the summation of the attained subdivision index A according to Regulation 7( a ). This will result in one GM limit curve based on the GM used at each draught. A trim limit diagram showing the assumed trim range shall be developed. [S 872/2019 wef 01/01/2020] ( f ) When curves or tables of minimum operational metacentric height (GM) or maximum allowable KG versus draught are not provided, the master shall ensure that the operating condition does not deviate from approved loading conditions, or verify by calculation that the stability requirements are satisfied for this loading condition. [S 686/2008 wef 01/01/2009] [S 872/2019 wef 01/01/2020]