Ballast exchange summary One pre-filled summary of an example exchange sequence and detailed step by step calculations are included in Appendix [X]. It is recommended that other planned ballast exchange sequences are summarised in the below table clearly showing for each step: Degree of fill for each tank. Symbols used: F indicates full; E indicated C indicates changed; S indicates slack; CS indicates changed and slack. - indicates tanks not in use The following items should be considered during the planning of a sequence; GM or VCG (corrected for free surface moments) in meters, to ensure compliance with the stability criteria; draught amidships, forward and aft in metres trim in metres; Heel in degrees max BM (hog or sag) as percentage of the max allowable (0.3L - 0.7L); max SF as percentage of the max allowable; max torsional moment as percentage of the max allowable; length of invisible zone of the bow and; propeller immersion ratio (100% is fully immersed); time estimated, on specific pump capacity; <It is recommended to fill the form in Excel or similar software.>
Ballast exchange summary One pre-filled summary of an example exchange sequence and detailed step by step calculations are included in Appendix [X]. It is recommended that other planned ballast exchange sequences are summarised in the below table clearly showing for each step: Degree of fill for each tank. Symbols used: F indicates full; E indicated C indicates changed; S indicates slack; CS indicates changed and slack. - indicates tanks not in use The following items should be considered during the planning of a sequence; GM or VCG (corrected for free surface moments) in meters, to ensure compliance with the stability criteria; draught amidships, forward and aft in metres trim in metres; Heel in degrees max BM (hog or sag) as percentage of the max allowable (0.3L - 0.7L); max SF as percentage of the max allowable; max torsional moment as percentage of the max allowable; length of invisible zone of the bow and; propeller immersion ratio (100% is fully immersed); time estimated, on specific pump capacity; <It is recommended to fill the form in Excel or similar software.>
e46748df3cb848449758f8e76dbe96b6.docx