555 Square Course Plotter

Square Course Plotter Used by the United States Power Squadrons for years, this plotter is a similar design to our square protractor, only it is slightly larger and incorporates a compass rose in the center to make calculating courses, bearings, and variation much easier. Comes in a convenient storage sleeve imprinted with easy to follow instructions. Dims: 7-3/4" x 9-7/16". Wt. 1.7 oz.555 Square Course Plotter