The Sextant Handbook

Specificaties
Paperback, blz. | Engels
McGraw-Hill Education | 2e druk, 1995
ISBN13: 9780070052192
Rubricering
McGraw-Hill Education 2e druk, 1995 9780070052192
Verwachte levertijd ongeveer 11 werkdagen

Samenvatting

Loran and GPS notwithstanding, there will always be a place for the sextant aboard any blue-water boat, if for no other reason than the thrill and mystery of finding one's position on earth by gazing at the heavens. Here is the indispensable reference that should accompany the instrument aboard. Cmdr. Bruce Bauer, a professional navigator and master mariner with the U.S. Merchant Marine, has distilled years of hands-on experience into an eminently readable guide to buying, adjusting, using, and repairing sextants.

The Sextant Handbook is dedicated to the premise that electronic navigation devices, while too convenient to disregard, are too vulnerable to rely on exclusively. The book is designed to make beginner and expert alike conversant with this most beautiful and functional of the navigator's tools. Topics include:Assembly and DisassemblyVital AdjustmentsAvoiding ProblemsRough Weather SightingsOiling and CleaningImmersion BathsEmergency SilveringFinding and Buying Used SextantsAnd Much More

You'll also find a list of distributors, manufacturers, and dealers worldwide, a discussion of future trends, and numerous helpful hints, including sighting with eyeglasses and using a Rude starfinder. All in a thoroughly revised edition of a book acclaimed by navigation professionals.

Specificaties

ISBN13:9780070052192
Taal:Engels
Bindwijze:paperback
Druk:2

Inhoudsopgave

<h3>Introduction</h3><h3>Chapter 1 A Short History</h3><h4>Astrolabe</h4><h4>Latitude Hook</h4><h4>Quadrant</h4><h4>Cross Staff</h4><h4>Back Staff</h4><h4>Sextant</h4><h3>Chapter 2 Elements of the Sextant and Four Vital Adjustments</h3><h4>Perpendicularity</h4><h4>Frame and Index Mirror</h4><h4>Frame and Horizon Glass</h4><h4>Parallelism</h4><h4>Index Mirror and Horizon Glass</h4><h4>Telescope and Frame</h4><h4>Adjustment Procedures</h4><h3>Chapter 3 Attachments and Accessories</h3><h4>Astigmatizers</h4><h4>Double Star Prism</h4><h4>Wide View Horizon Glass</h4><h4>Davis Prism Level</h4><h4>Bubble Horizon Attachment</h4><h4>Neck Straps</h4><h4>Visual Aids</h4><h3>Chapter 4 Care, Maintenance, and Repair</h3><h4>Oiling and Cleaning</h4><h4>Immersion Bath Procedures</h4><h4>How to Hold</h4><h4>Where to Put Down</h4><h4>Mounted Sextant Boxes</h4><h4>Emergency Silvering Techniques</h4><h4>Applying Paint</h4><h4>Resilvering Horizon Glass</h4><h3>Chapter 5 How to Buy a Sextant</h3><h4>Where to Find Them</h4><h4>Prices</h4><h4>Five Ground Rules to Avoid Problems</h4><h4>Taking Test Sights</h4><h4>Interstellar Test Table</h4><h4>Discovering the Dropped Sextant</h4><h4>Reconditioning Costs</h4><h3>Chapter 6 Sighting Techniques</h3><h4>Inversion for Location</h4><h4>Precalculating Azimuths</h4><h4>Rocking or Swinging an Arc</h4><h4>Sun's Upper Limb</h4><h4>Shades for Sun, Moon, and Venus</h4><h4>Correcting for False Horizon</h4><h4>Rough Weather Sighting Techniques</h4><h4>Making a Monocle</h4><h3>Chapter 7 Correcting the Sight</h3><h4>The Thirteen Errors</h4><h4>Correcting for Moon, Venus, and Mars</h4><h4>Correcting for Wave Height</h4><h3>Chapter 8 Timing the Sight Accurately</h3><h4>The Hack Watch</h4><h4>Using a Tape Recorder</h4><h4>Counting Paces and Stopwatches</h4><h4>Attaching Stopwatch to Sextant</h4><h3>Chapter 9 Searching for Stars</h3><h4>The Necessity for Preplanning</h4><h4>Finding Sunrise</h4><h4>Using the Rude Star Finder</h4><h4>Converting Local Time</h4><h4>Using H.O. Pub. No. 249</h4><h4>Making and Using a Wrist Board</h4><h3>Chapter 10 Sextants of Tomorrow</h3><h4>Is the Sextant Doomed?</h4><h4>Coming Developments</h4><h3>Appendixes</h3><h4>A--Sextant Check Procedures</h4><h4>B--Sextant Manufacturers</h4><h4>C--Distribution and Dealers</h4><h4>D--The Navigator's Basic Tool Kit</h4><h4>E--Making and Using an Artificial Horizon</h4><h4>F--Table of Interstellar Angles for Practice Sighting and Sextant Testing</h4><h4>G--Useful Addresses</h4><h3>Bibliography</h3><h3>Index</h3>

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