Moment to Change Trim 1 cm (MCT1cm)

MCT1cm converts a longitudinal weight-moment into an expected trim change. Essential for any loading, ballasting, or cargo-shift operation.

StabilityTrim

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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{MCT1cm} = \frac{\Delta \cdot GM_L}{100 \cdot L_{pp}}

Symbol	Meaning	Unit
$\Delta$	Displacement	t
$GM_L$	Longitudinal metacentric height	m
$L_{pp}$	Length between perpendiculars	m
$MCT1cm$	Moment to change trim 1 cm	t·m / cm

Source: Derrett & Barrass Ch.10; SNAME - PNA Vol I

Compute MCT1cm from displacement, longitudinal GM and LBP.