Dynamical Stability - Area under GZ
Dynamical stability (energy reserve) at an angle is Δ × area under GZ curve - the energy available to resist a gust or heeling impulse.
Dynamical stability
2,640.0t·m·rad
Energy reserve
25,898kJ
Formula, assumptions, and limits
IS Code criteria are all expressed as area under GZ. Compare this energy to heeling-arm energy (wind + roll) to assess residual safety margin.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Displacement | t | loading computer | |
| Area under GZ curve | m·rad | stability booklet |