Companion Nautical Calculation

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This is a weatherproofed handy reference, part of the Wiley Nautical series of guides that can be hung up by a chart table or in the cockpit. There are sailors who seem to manage without any knowledge or skill with numbers or mathematics, but safe sailing requires knowledge of the position of the boat and the course that will take it from one location to another. That requires an ability to use charts and navigational equipment, to read the weather, cater for the effects of the winds and to accommodate the movement of water in tides and currents. This publication provides all of the important numbers and calculations that a sailor will need at some point from preparing to undertaking a voyage.

Part Number
Port Solent