Junior Navigation is the first of a two-part program of study in offshore (open coast) navigation. It is designed as a practical, how-to course using GPS for offshore navigation with sun sight taking using a sextant as a backup technique. The more advanced techniques for other celestial bodies and sights are for study in the subsequent Navigation Course. JN subject matter includes: basic concepts of celestial navigation; how to use the marinerís sextant to take sights of the sun; the importance and techniques of accurate time determination; use of the Nautical Almanac; how to reduce sights to establish lines of position (LOPs); and the use of GPS, special charts, plotting sheets and other navigational data for offshore positioning and passage planning. The two star insignia is shown on the right.
Junior Navigation is designed as a practical "how to" course.
Subject matter includes:
- Precise time determination
- Use of the Nautical Almanac
- Taking sextant sights of the sun
- Reducing sights to establish lines of position
- Special charts and plotting sheets for offshore navigation
- Offshore navigational routines for recreational craft