Rudder Rate Check (SOLAS II-1 Reg 29)
Rate check: full rudder 35°→30° other side in ≤ 28 s, meaning ≥ 2.32 °/s average. SOLAS fundamental steering-gear duty.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Measured time 35°→30° | s | |
| Average rudder rate | °/s |
Source: SOLAS II-1 Reg 29
In short
Rate check: full rudder 35\u00b0\u219230\u00b0 other side in \u2264 28 s, meaning \u2265 2.