C-Swing, the magnetic compass adjuster. C-Swing also computes a set of magnetic coefficients and gives guidance on placing corrector magnets and making adjustments. With C-Swing, preparing a deviation chart is now simply a question of selecting a suitable shoreside object, entering its true bearing from the chart, then entering its compass bearing as the boat is sailed on a range of headings.
Versatile suite of cycling-related tools for the amateur and professional alike.
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