A fine fix: even in the electronic age of magic black boxes, it behooves the well-rounded navigator to cultivate a lasting friendship with a hand-bearing compass

Article Abstract:

A costal pilot needs to be self-sufficient for the times when electronic devices fail, or the government withdraws position-findings fixes. A discussion of cross-bearings as a navigation tool for the small boat sailor is presented. Step-by-step instructions for finding position is given.

Methods, Ships, Yachts and yachting, Yachting, Yachts, Dead reckoning (Navigation), Dead reckoning, Dynamic positioning systems

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A celestial approach to ridding compass error

Article Abstract:

The best approaches for finding compass deviation at sea involve the use of celestial bodies. Compass error can be determined by comparing the azimuth or bearing of a celestial body or by finding the computed azimuth by calculator. Amplitude can also be used to find compass error.

Analysis, Usage, Compasses (Navigation), Compass, Aids to navigation, Navigation aids

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See the light

Article Abstract:

Tips on how to compute the range of visibility of lighthouses are provided. Visible range is computed by determining the difference between the lighthouse's geographic and luminous ranges.

Measurement, Lighting, Lighthouses

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