Regulation 6 - Attained subdivision index
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.574 – The Calculation Procedure to Assess the Survivability Characteristics of Existing Ro-Ro Passenger Ships When Using a Simplified Method Based Upon Resolution A.265(VIII) – (Adopted on 3 June 1991) - Annex - The Attained Subdivision Index 'A' for Existing Ro-Ro Passenger Ships - The Calculation Procedure to Assess the Survivability Characteristics of Existing Ro-Ro Passenger Ships When Using a Simplified Method Based Upon Resolution A.265(VIII) - The use of the probabilistic concept in assessing the residual stability standards of existing ro-ro passenger ships - Regulation 6 - Attained subdivision index

Regulation 6 - Attained subdivision index

  6(a)(i) Applies, except that the words “In addition to complying with regulation 5" should be ignored.

  6(a)(ii) Applies, except that a full stop should be placed after “... for all possible pairs of adjacent compartments" and the rest of the subparagraph should be ignored.

  6(a)(iii) Applies, except that the words “according to Regulation 5" should be ignored.

  6(b) Applies, except that when the end bulkheads of a compartment contains a step, or steps, then the length of such a compartment is to be based upon the position of those end bulkheads at ship side.

  6(c)(i) Applies.

  6(c)(ii) Applies.

  6(c)(iii) Applies.

  6(d)(i) Replace the formula (VIII) by the formula for `si` from the paper SLF 35/4/9 - see below for full details. In respect of GMR, this should be taken as the GM corresponding to the intact condition at the deepest subdivision loadline.

  6(d)(ii) In place of the weighted `s' value i.e.:

s = 0.45 s1 + 0.33s2 + 0.22s3, `s' for the deepest subdivision loadline should be used.

  6(d)(iii) Applies.

Parent topic: The use of the probabilistic concept in assessing the residual stability standards of existing ro-ro passenger ships
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