Rule of Twelfths

The Rule of Twelfths is a rule of thumb for estimating the height of the tide at any given time. The rate of flow in a tide increases smoothly to a maximum halfway point between high and low tide, before smoothly decreasing to zero again. This is important when...

Sailboat General Equipment Terms

Equipment Terms Auxiliary – A sailboat’s engine, or a sailboat with an engine Ballast – The weight in a sailboat’s keel, sometimes in a centerboard, that helps keep the boat from heeling too much Beam – The width of the boat at its widest...

Navigation Rules/Rules of the Road

Pecking order of vessels. There is a basic order, in the navigation rules, that governs who stays out of the way of whom. Essentially, the hardest to maneuver vessels are stand-on while the easiest to maneuver vessels are give-way. In the following list vessels...
Great Fishing Gifts for Fishermen

Great Fishing Gifts for Fishermen

If you are as obsessed with fishing as we are at Waterproof Charts, you always ask for fishing gear during holidays. We have the fishing gifts you are going to want during Christmas, Hanukkah, or your birthday. And if you aren’t a fisherman, you will want to get this...