Its own written paper, and the half of navigation you use every watch: the sailings on a Mercator chart whose stretched latitudes make a rhumb line straight, coastal fixes with the cocked hat opening as a compass error creeps in, the tide under the keel, and the current solved as one vector triangle drawn three ways.
Real identifiers, as they appear inside the platform.
| Lab | Title |
|---|---|
| OP-14 | The sailings — rhumb lines & meridional parts |
| OP-17 | Coastal chartwork — bearings, fixes & distance off |
| OP-18 | Current, set & drift — the course to steer |
| OP-16 | Tides — the Moon's pull & the keel |
| OP-19 | The coastal passage plan |
| OP-20 | Blind pilotage & parallel indexing |
A cadet or a serving officer starts free and is inside a laboratory in a minute. A college talks to us first, because enrolment and faculty tools need setting up properly.