When boat owners have questions about navigation, electronics or safety concerns, they need answers now. Extremely durable and completely waterproof, Quick Reference Cards (QRC) from Davis Instruments deliver essential information in a clear, colorful format. The 22cm x 28cm weatherproof, high-strength plastic pages are expertly illustrated and organized. Three-hole punched, the set of seven cards can be kept conveniently at hand in a binder. Covering boating in general, the basic Boating Guide includes a pre-departure checklist and emergency procedures. Celestial Navigation is an easy guide to determining position using the sun and stars. Dead reckoning, true-magnetic and compass relationships are a few of the subjects of the Coastwise Piloting QRC. A time, distance and speed calculator and bearing gauge are included. Navigation Rules covers the U.S. buoyage system, right of way, flags, lights and sound signals. To reduce confusion and danger when entering unfamiliar waters or busy harbors, International Nav Rules incorporates the International Maritime Buoyage System and COLREGS. Marine Electronics gives an overview and basic troubleshooting guide for popular communication and navigation devices. To enhance safety, Weather Forecasting outlines how to predict weather, plus crucial information on boating in dangerous conditions. Covering many of the same topics in a smaller version, Pocket Quick Reference Cards are easy to read and durable. Joined by a steel ring, the set of six 7.6cm x 10.2cm cards also provide information on subjects such as fueling procedures, what to do in case of fire and administering CPR.