Polar navigation - compass operation card: Gyro unreliable > 80° lat.
Formula
$$ \text{Op} = \text{Polar navigation - compass} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $Polar navigation - compass$ | Gyro unreliable > 80° lat | - | Polar Code / IACS PC |
Sources
- IMO Polar Code (MSC.385(94)).