Solid and fluid transverse metacentric height. IS Code requires fluid GM ≥ 0.15 m.
Formula
$$ GM_\text{solid} = KM - KG, \quad GM_\text{fluid} = GM_\text{solid} - \text{FSC} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $KM$ | Transverse metacentre above keel | m | hydrostatic table |
| $KG$ | Vertical centre of gravity above keel | m | loading computer |
| $FSC$ | Sum of free-surface corrections | m | tank table × tank state |
| $GM_\text{fluid}$ | Fluid metacentric height | m | result |
Sources
- IMO IS Code MSC.267(85).
- Derrett & Barrass Ch.13.