Portland Course Plotter / Portland plotter & Divider Kit
The Portland Course Plotter is one of the most popular chart work instruments and is widely used by RYA practical & shore based instructors. It provides a quick method of plotting course and bearings and gives a direct reading of corrections for magnetic variation. THis new version has been developed in consultation with the RYA and has been engineered for both strength & fine accuracy.
Compass disc incorporates special finger bars making it more easily used with cold, wet, or even gloved hands. Edge scales for tide and boat speeds.
A bright blue directional arrow prevents accidental reciprocal bearings and the edges are graduated for tide and boat speed. Fixed grid base helps plotting latitude and longitude from GPS.