A sextant is an excellent tool to have on board any size craft as a backup in case there is a failure of the primary navigational systems.
The Mark 15 is a traditional sextant that provides accurate readings of many object pairs. It is lightweight, and the swingarm is easy to move with a smooth action. It also comes with an instruction manual that is easy to follow. A sextant is a simple instrument that is easy to use once you try it a few times.
Includes Plastic Case, Operators manual and a copy of: Simple Celestial Navigation by the Heavens Made Easy