The Roorkee Instruments magnetic compass at sea is mainly used for steering a course. The compass reading must be accurate, especially on long sea passages, because an error of one or two degrees in a long course can make a difference of thousands of nautical miles in reaching your destination after...

Material: ABS PLASTIC Waterproof IP66 rating Voltage: 12VDC LED light construction Wattage: 0.54W Color Temperature: 5500-6300K 2 Nautical Miles Dimensions: 3" by 2 1/2" Beam angle" 112.5 degrees each This light features the latest energy saving LED technology, a modern design, and optimized size, m...

Rugged, tough and reliable, invincible marine offers top of the line boating products and marine accessories at affordable prices, and is well-known for their hardworking nautical line. For freshwater and saltwater boating, invincible marine designs products for avid fishermen and weekend boaters. Q...

Rugged, tough and reliable, invincible marine offers top of the line boating products and marine accessories at affordable prices, and is well-known for their hardworking nautical line. For freshwater and saltwater boating, invincible marine designs products for avid fishermen and weekend boaters. Q...

Rugged, tough and reliable, invincible marine offers top of the line boating products and marine accessories at affordable prices, and is well-known for their hardworking nautical line. For freshwater and saltwater boating, invincible marine designs products for avid fishermen and weekend boaters. Q...

Learn the essentials of seamanship from one of the world's premier boating organizations Developed and refined through 40 years of Coast Guard Auxiliary training courses, Boating Skills and Seamanship is your perfect introduction to recreational boating's fundamentals. Great for beginning and interm...

"Simply put, every local boater should have a dog-eared, well-thumbed copy [of this guide] as a permanent feature in the nautical library."―48° North A Cruising Guide to Puget Sound and the San Juan Islands has earned an outstanding reputation for the accuracy of its piloting instructions, the clari...

A beautifully, uniquely illustrated nautical guide to how to trim your sails and rig for maximum performance. With a revolutionary approach, this guide tackles the practical and realistic elements of tuning your boat, plus the theory of sail aerodynamics.See:

The Invincible Marine BR51417 12-Volt Power Plug with Cover is perfect for cell phones, spotlights, aerators and other 12-volt accessories. This two-prong socket defends against moister and corrosive elements, and requires a 1-1/16-inch installation hole. The item has 16-gauge lead wires and fits st...

Nautic amplifiers are not automotive amplifiers. While they will work just fine in a car or truck, they are purposely built to very strict standards set forth by both the American Boat and Yacht Council (ABYC) marine electronics standards and the American Society for Testing and Materials, ASTM Inte...

Rugged, tough and reliable, invincible marine offers top of the line boating products and marine accessories at affordable prices, and is well-known for their hardworking nautical line. For freshwater and saltwater boating, invincible marine designs products for avid fishermen and weekend boaters. Q...