The portland course plotter from Blundell Harling is an essential kit for students taking training courses and for seaman. This kit includes 7″ dividers with a brass finish and a fixed grid base. This is the most popular choice for chart work as it offers accuracy and strength, this kit is widely used by RYA instructors both practical and shore based.

Fully approved by RYA
Full instructions how to use
Kit contains a Portland Course & Single handed Divider
Essential navigation equipment for the mariner