GPS For Mariners is a comprehensive guide for recreational boaters to learn how to operate and effectively use today's GPS systems in everyday navigational situ
Can piloting a boat really be this easy? Traditional navigation with its chart plotting, compass errors, and current vectors requires years to master. Serious b
Become an Expert Small-Craft Radar Operator Nothing beats radar for guiding your boat through the darkest night or the thickest fog. Radar enables you to plot a