Wall-sided (Atwood) approximation for GZ at moderate heel - quick check before rigorous cross-curve integration.
Formula
$$ GZ = \sin\theta \cdot (GM + \tfrac{1}{2} BM \tan^2\theta) $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $GM$ | Metacentric height | m | inclining |
| $BM$ | Metacentric radius | m | I_T / ∇ |
| $\theta$ | Heel angle | rad | inclinometer |
Sources
- Rawson & Tupper Vol 1.