New KG after Weight Removal

Moment-method update of KG when a weight is discharged - e.g., bunkers consumed, cargo discharged, ballast deballasted.

StabilityKG

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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

KG_\text{new} = \frac{\Delta \cdot KG_\text{old} - w \cdot kg_w}{\Delta - w}

Symbol	Meaning	Unit
$KG_\text{old}$	KG before removal	m
$Δ$	Initial displacement	t
$w$	Weight removed	t
$kg_w$	Height above keel of removed weight	m
$KG_\text{new}$	New KG	m

Source: Derrett & Barrass Ch.11

Moment-method update of KG when a weight is discharged - e.