Deluxe Color-Coded Rotating Azimuth Navigation Plotter Color-coded with sawtooth scales for easier reading. Accurate high-visibility graphic scales. Easiest, fastest and most accurate TOP-SCALE PLOTTER. Direct reading to Magnetic course. Instructions are printed on plotter. Nautical side and Statute side shows six WAC and Sectional scales Both sides display scales for Statute and Nautical miles at each end.