Davis Quick Reference Celestial Navigation Card [132] Marine Hardware | Rope & Chain Pipe Stand-up blocks are an addition

Stand-up blocks are an addition to our Element line

100 to 250°F - 450-29 Ohm 240F/250F marine temperature senders

Tilted Element™ transducers have the element fixed at a 20°

Resists lateral

Davis Quick Reference Celestial Navigation Card [132] Marine Hardware | Rope & Chain Pipe Stand-up blocks are an additionQuick 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.