Navigation is a catalogue on this site: 19 calculators sit under it, each covering one entry in the scheme. This page is the index that explains what the scheme is for, how an entry is read, and where the boundaries of the classification fall.
It is a stub. The full article will set out the governing instrument, the structure of the catalogue, and the decisions a reader has to make before picking an entry, because choosing the wrong entry is the common failure and it is rarely obvious from the entry itself.
Related calculators
- Sun Azimuth, Time-Azimuth
- Distance by Vertical Sextant Angle
- Ex-Meridian Latitude
- Radar Refraction, Coefficient
- Leeway Angle
- Meridional Parts
- Noon Sun, Latitude from Meridian Altitude
- Parallel Sailing, D.Long from Departure
- Plane Sailing, D.Lat & Departure
- Polaris Correction, Latitude Sight
- Latitude from Polaris
- Running Fix, Two Observations
- Storm Avoidance, Right Semicircle Rule
- Sun Altitude, Refraction Correction
- Course to Steer with Tidal Stream
- Tide, M2 Semi-Diurnal Amplitude
- Tide, Interpolated Height
- Tide Height, Rule of Twelfths
- Local Time ↔ UTC Conversion