26 March, 2009

Emergency Navigation: Find Your Position and Shape Your Course at Sea Even If Your Instruments Fail, 2nd Edition

David Burch, "Emergency Navigation: Find Your Position and Shape Your Course at Sea Even If Your Instruments Fail, 2nd Edition"
International Marine/Ragged Mountain Press | 2008-06-20 | ISBN: 0071481842 | 288 pages | PDF | 5,5 MB

Every sailor knows that instruments can fail. Things get wet, break, fall overboard. Whether you’re safe on your boat or drifting in a life raft, let David Burch show you how to find your way no matter what navigational equipment you have. Often relying on common materials like a small stick, a plastic bottle, even a pair of sunglasses, Burch explains how to make use of all available means--from the ancient skills of Polynesian navigators to the contrails of airliners overhead--to calculate speed, direction, latitude, and longitude and to perform all aspects of piloting and dead reckoning. Learn how to

* Steer by sun, stars, wind, and swells
* Estimate current and leeway
* Improvise your own knotmeter or plumb-bob sextant
* Find the sun in a fogbank
* Estimate latitude with a plate and a knotted string
* And more vital information
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