Advance and tactical diameter of a ship’s 35° turning circle given length and speed, with IMO A.751 pass criteria check.
Formula
$$ \text{Advance} \leq 4.5 L, \quad \text{TD} \leq 5 L $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $Advance$ | Forward distance from track to 90° heading | m | sea trial |
| $TD$ | Tactical diameter at 180° heading | m | sea trial |
Sources
- IMO A.751(18) / MSC.137(76).