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A bright blue directional arrow prevents accidental reciprocal bearings and the edges are graduated for tide and boat speed. Fixed grid base helps plotting lat. and long. from GPS

2 in stock (can be backordered)

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Description

Portland Course Plotter

A popular chart work instrument 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.

Additional information

Weight 0.5 kg
Dimensions 45 × 15 × 1 cm