These very popular reference cards embody an enormous amount of information on each of their respective subjects. They make a great general review, or a way to refresh yourself on some small aspect you may have forgotten. Dimensions 8.5” x 11” inches.
A simplified, yet complete Celestial Navigation system. Includes everything you need: sextant use and corrections, starfinder for 18 stars, data entry form, and step-by-step sight reduction and plotting procedures. May be scored and separated; large portion fits in the sextant case for quick reference, and small part acts as a waterproof data reduction card.