Track reach during full-astern crash stop - IMO MSC.137(76) requires ≤ 15 L. Order-of-magnitude estimate using momentum and astern thrust.
Formula
$$ d_\text{stop} = \frac{\tfrac{1}{2} M V_0^2}{F_\text{astern}} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $M$ | Ship mass (× 1.05–1.10 for added mass) | kg | loading computer |
| $V_0$ | Initial speed | m/s | log |
| $F_\text{astern}$ | Mean astern thrust | kN | ship-type estimate |
Sources
- IMO Resolution MSC.137(76).