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The area under GZ curve should not be less than 0.009/C m-r up to an angle of heel of 30 degrees. |
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The area under GZ curve should not be less than 0.016/C m-r up to an angle of heel of 40 degrees or angle of flooding (angle at which the lower edges of any openings in the hull, superstructures or deck houses, being openings which cannot be closed water tight are immersed) whichever is lower. |
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The area of GZ curve between 30 degrees and 40 degrees should not be less than 0.006/C m-r. |
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The righting lever shall be at least 0.033/C m at an angle of heal equal to or greater than 30 degrees. |
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The maximum GZ should be 0.042/C m. |
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The total area under the righting lever curve (GZ curve) up to the angle of flooding should not be less then 0.029/C m-r. |
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In the stability criteria, C to be calculated as follows: |
C = dD'/Bm2Ö(d/KG) X (CB/CW)2 X Ö(100/L)