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Plotters and Calculators

Brand: Blundell Harling Model: 0655.31
This simple-to-use slide rule device is for calculating the third variable given the other two (distance covered, given speed and elapsed time)...
£7.85
(Inclusive)
Brand: Blundell Harling Model: 0655.32
The Portland Plotter is one of the most popular chart work instruments and is widely used by RYA practical and shore based instructors. It provides a quick method of plotting courses and bearings and gives a direct reading of corrections for magnetic variation. This new version has been developed in..
£14.85
(Inclusive)
Brand: Blundell Harling Model: 0655.32KIT
A course plotter kit that includes a 7 inch Single Handed Divider and the Portland Course Plotter.The Portland Plotter is one of the most popular chart work instruments and is widely used by RYA practical and shore based instructors. It provides a quick method of plotting courses and bearings and gi..
£26.45
(Inclusive)
Brand: Blundell Harling Model: 0655.35
A plotter, with movable disc allowing magnetic variation to be set on the instrument.The moving arm is divided into millimetres...
£44.85
(Inclusive)
Brand: Blundell Harling Model: 0655.37
A simple to use slide rule device for calculating the third variable given the other two (distance covered, given speed and elapsed time) to a NATO pattern...
£14.45
(Inclusive)
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