The Prism is a stripped down racing compass. The Prism provides unprecedented accuracy, coupled with a massive display, in a compact package. At a mere 137 g (4.8 oz) it is the world's lightest racing compass. The Prism uses only magnetic input as its heading reference, has no memory, no user inputs, and performs no arithmetic functions. It's legal in all classes that allow electronic compasses.
Harken's patent-pending stud-bolt mounting system allows one person to quickly install a winch through predrilled holes on deck without removing the drum.
This famous set of mathematical tables first published in 1803 with all the tables required for coastal and deep sea navigation. An essential requirement for anyone learning and practising astro-navigation.
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