Reserve buoyancy as a percentage of displacement - the volume above the load-water plane that provides resistance to flooding.
Formula
$$ RB = \frac{\nabla_{hull} - \nabla}{\nabla} \cdot 100% $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $\nabla_{hull}$ | Volume up to weather deck | m³ | capacity plan |
| $\nabla$ | Displaced volume | m³ | hydrostatics |
Sources
- Load Line Convention 1966/88.