Davis Quick Reference Celestial Navigation Card [132] Camping | Coolers Heavy-Duty Ratchet Trailer Tie-Down -

Heavy-Duty Ratchet Trailer Tie-Down - 2" x 3' - Pair

B: (inch) 15/32" / (mm) 12

BRP-OMC Alternator 3857298

Thread NPT: 1-1/4"

Davis Quick Reference Celestial Navigation Card [132] Camping | Coolers Heavy-Duty Ratchet Trailer Tie-Down -Quick Reference Celestial Navigation Card A simplified, yet complete Celestial Navigation system. Includes everything you need: sextant use and corrections, star finder for 18 stars, data entry form, and step by step sight reduction and plotting procedures. May be scored and separated; a large portion fits in the sextant case for quick reference, and a small part acts as a waterproof data reduction card.