Damage Stability - Margin-Line Clearance

Margin-line clearance check - in damaged condition, the waterline must not immerse the margin line (76 mm below bulkhead deck at side) per SOLAS II-1 Reg. 7.

DamageMargin lineSOLAS

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\text{clear} = (h_{BHD} - 0.076) - (T_{dam} + y_{half} \tan\theta)

Symbol	Meaning	Unit
$h_{BHD}$	Bulkhead deck at side	m
$T_{dam}$	Damaged mean draft	m
$\theta$	Damaged heel	deg

Source: SOLAS II-1 Reg. 7

In short

Margin-line clearance check - in damaged condition, the waterline must not immerse the margin line (76 mm below bulkhead deck at side) per SOLAS II-1 Reg.

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