The PN-1Navigation Plotter features an opaque background and laminated design which means you’ll be able to identify the scales quickly and effortlessly – for years to come. Spot WAC and Sectional chart scales in an instant. Dual scales are calibrated in both statute and nautical miles.
When the centre hole is placed over a meridian line and the top edge of the scale is aligned with the proposed track the heading to steer (zero wind) can be read from the fixed protractor. Distance is read from the 1:500,000 or 1:1,000,000 scales.