Download EBOOK How to Use Plastic Sextants: With Applications to Metal Sextants and a Review of Sextant Piloting PDF for free


Download EBOOK How to Use Plastic Sextants: With Applications to Metal Sextants and a Review of Sextant Piloting PDF for free Category: Transport
The author of the book: David Burch
Format files: PDF, EPUB, TXT, DOCX
The size of the: 1.34 MB
Language: English
ISBN-13: 9780914025245
Edition: Starpath Publications
Date of issue: 27 September 2010

Description of the book "How to Use Plastic Sextants: With Applications to Metal Sextants and a Review of Sextant Piloting":

Sextants are used to measure angular heights of celestial bodies above the horizon to find the latitude and longitude of the observer. They can also be used on land with artificial horizons. Sextants can also be used to find the correct Universal Time by measuring the angular distance between the moon and another body along its path across the zodiac. In coastal waters or on land, sextants can be used for very accurate piloting by measuring the horizontal angles between charted landmarks. The vertical angle of a peak above its baseline determines the distance to it, which, combined with a PDF compass bearing, yields a position fix from just one landmark. The angular dip of an object (island or vessel) below the visible horizon can also be used to determine the distance to it. This booklet explains how to get the best results from plastic sextants, and presents numerical comparisons with similar data from metal sextants. Sextant piloting techniques are also reviewed as they are an ideal use of a plastic sextant.

Download EBOOK How to Use Plastic Sextants: With Applications to Metal Sextants and a Review of Sextant Piloting PDF for free


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David Burch

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Download EBOOK How to Use Plastic Sextants: With Applications to Metal Sextants and a Review of Sextant Piloting PDF for free



Download EBOOK How to Use Plastic Sextants: With Applications to Metal Sextants and a Review of Sextant Piloting for free

Download PDF: how-to-use-plastic-sextants-with-applications-to-metal-sextants-and-a-review-of-sextant-piloting.pdf Download How to Use Plastic Sextants: With Applications to Metal Sextants and a Review of Sextant Piloting PDF
 
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