HomeCalculatorsDamage Stability - B/5 Line Assumption

Damage Stability - B/5 Line Assumption

Damage penetration depth per classical SOLAS II-1 deterministic rule - horizontal penetration ≤ B/5 measured inboard from the moulded side.

DamageB/5SOLAS
B/5 assumed penetration
5.60m
Formula, assumptions, and limits

Applies to pre-2009 SOLAS method. Probabilistic method uses statistical penetration from LMS records. B/5 still used for fuel-oil tank and side-tank protection in oil tankers (MARPOL Annex I Reg. 19).

Symbol legend

SymbolMeaningUnitSource
Moulded breadthmship particulars