Celestial Navigation for Yachtsmen

  • Filename: celestial-navigation-for-yachtsmen.
  • ISBN: 9781408106396
  • Release Date: 2013-09-21
  • Number of pages: 72
  • Author: Mary Blewitt
  • Publisher: A&C Black



The 12th edition of this bestselling textbook is proof of the success of Mary Blewitt's concise and clear style in explaining a particularly difficult skill, and it has been the bible for many generations of ocean navigators. Since this book was first published, the huge advances in electronic navigation has transported most offshore navigators to a world of press-button convenience. However, there is still a vital need for traditional skills when things go wrong: batteries can fail, aerials go overboard, and electronics have been known to get wet. A bestseller for over 50 years, Celestial Navigation for Yachtsmen is a model of simplicity and clarity. The worked examples require only straightforward addition and subtraction, which explains why this book has truly earned its reputation for admirable conciseness and making a tricky subject easy to understand. 'The "bible" of navigation for generations of yachtsmen... worth its weight in gold' Sailing

Celestial Navigation in the GPS Age

  • Filename: celestial-navigation-in-the-gps-age.
  • ISBN: 0939837757
  • Release Date: 2007
  • Number of pages: 274
  • Author: John Karl
  • Publisher: Paradise Cay Publications



Many books on celestial navigation take shortcuts in explaining concepts; incorrect diagrams and discussion are often used for the sake of moving the student along quickly. This book tells the true story-and the whole story. It conveys celestial navigation concepts clearly and in the shortest possible time.It's tailored for navigation in the GPS age-a time of computers, calculators, and web resources. Although it covers all of the traditional methods of 'working a sight, ' the primary thrust is using the (under $10) scientific calculator. By using equations that you key into your calculator, this book guides you toward a better understanding of the concepts of celestial navigation.You will learn novel ways to plot lines of position, ways to check your sextant accurately by star sights, and how to tell what time it is from a moon sight. The many appendices are a treasure of references and explanations of abstract ideas. Celestial Navigation is a crucial skill for the offshore navigator to know, this book provides the shortest path to that knowledge.

Celestial Navigation

  • Filename: celestial-navigation.
  • ISBN: 0914025511
  • Release Date: 2016-03-04
  • Number of pages: 296
  • Author: David Burch
  • Publisher:



This book has been used for 30 years, updated periodically as needed. More than 20,000 students have successfully learned ocean navigation from these materials and gone on to cross oceans or circumnavigate the globe. This book covers how to find position at sea from timed sextant sights of the sun, moon, stars, and planets plus other routine and special procedures of safe, efficient offshore navigation. No previous navigation experience is required. The only math involved is arithmetic (adding and subtracting angles and times). This is a practical, how-to-do-it book, which also includes clear explanations of how it works and how to do it well. Plus this book includes other crucial factors of ocean navigation besides just finding out where you are from the stars, such as logbook procedures, dead reckoning, error analysis, route planning, and more. At the end of this book, you will be ready for ocean navigation. The book includes: text, practice problems, tables selections, detailed glossary, and full solutions. Printable work forms, plotting sheets, and other resources are available at no charge from www.starpath.com/celnavbook. Preface to the Second Edition: We are pleased to say that after ten more years of using this text we do not find reason to change the basic approach and methods of the teaching. We still use most of the same examples, which are now quite old, but that is the beauty of celestial navigation. It has not changed, so we do not benefit in any way from making all new examples, which would bring with them more chance of error in a book of many numbers. We have, however, notably improved and expanded the book. Each section has been updated and reformatted for a clearer presentation, often in response to student questions over the years. New graphics have been added and older ones all updated. There is much new content in the text, especially in the In-Depth chapter, including more detailed discussion of the sailings and more background on the principles. New sections were added on general ocean navigation and optimizing the fixes. We have also updated the electronic navigation section, as most ocean navigators will also be using other tools besides celestial.

Norie s Nautical Tables

  • Filename: norie-s-nautical-tables.
  • ISBN: 0852889453
  • Release Date: 2007-01-01
  • Number of pages: 568
  • Author: John William Norie
  • Publisher: Imray Laurie Norie & Wilson



This famous set of mathematical tables was first published in 1803. It has been a bestseller ever since, and despite developments in electronic navigation it remains an essential requirement for anyone learning and practising astro-navigation. Last updated in 1994, the editor, George Blance, has worked for some time on the modernisation of all the tables for this major new edition. New tables have been included and obsolete ones deleted to conform with the changing techniques of navigation, with the aim of improving the accuracy of the calculated position and reducing the tedium of the calculation. All the tables required for coastal and deep sea navigation are included. A simple uniform method of interpolation for all the trigonometrical tables is used. Certain tables and data are also included which are not readily available on board ship or are only used in the examination room. The section 'Seaports of the World' has also been extensively updated and restructured with several hundred additional ports. The ports are listed geographically in the following order from Arctic Russia, Scandinavia, the Baltic Sea, the Atlantic coast of Europe, the Mediterranean Sea, West Africa, East Africa, Arabia, the Persian Gulf, the Indian sub-continent, the Far East, Australasia, the west coast of North and South America and finally the east coast of North and South America. At the back of the section is an index of the seaports.

American Practical Navigator

  • Filename: american-practical-navigator.
  • ISBN: 1332341489
  • Release Date: 2015-08-06
  • Number of pages: 660
  • Author: Nathaniel Bowditch
  • Publisher:



Excerpt from American Practical Navigator: An Epitome of Navigation and Nautical Astronomy In accordance with the purpose contemplated in the purchase of the copyright of the New American Practical Navigator, a thorough and complete revision has been made by Commander P. H. Cooper, U. S. Navy, acting under the direction of the Bureau. The revision consists principally in the substitution of the more concise and convenient methods of the present day for the obsolete methods of the past, and it complete rearrangement under proper chapters and paragraphs for ready reference, keeping in view, however, the character of the work as a Practical Nuvigator. The revision having been completed, it was submitted to Capt. Ralph Chandler, U. S. Navy, for a final review, and having received a satisfactory report from that officer it has been accepted by the Bureau and will hereafter lie substituted for the former editions of the work. A revision of Bowditch's American Practical Navigator having become necessary, the work has completed by Lieut. G. W. Logan, U. S. Navy, under the supervision of the Hydrographer to the Bureau of Equipment. The revision was approved by a Board consisting of Capt. Colby M. Chester, U. S. Navy, Commander C. J. Badger, U. S. Navy, and Lieut. Commander C. C. Rogers, U. S. Navy. It is directed that this revised edition be substituted for all former editions. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Hawaii by Sextant An In Depth Exercise in Celestial Navigation Using Real Sextant Sights and Logbook Entries

  • Filename: hawaii-by-sextant-an-in-depth-exercise-in-celestial-navigation-using-real-sextant-sights-and-logbook-entries.
  • ISBN: 091402518X
  • Release Date: 2014-03-14
  • Number of pages: 176
  • Author: David Burch
  • Publisher:



In the spirit of early Bowditch editions, we offer navigation details of a full ocean passage as an excellent way to learn the ropes of practical celestial navigation. With your own tables and plotting sheets, you can analyze 224 timed sextant sights of sun, moon, stars, and planets to obtain 26 position fi xes to fi nd your way along a 2,800-nmi voyage lasting 17 days. Solutions are provided by computation, workforms, and detailed plots using universal plotting sheets. After completing this passage you will be prepared to navigate by celestial navigation on your own, whether you need to or choose to. Also includes notes on optimizing sight analysis, hurricane tracking, DR error analysis, ocean currents, and use of visible light ranges for nighttime arrivals.

Gipsy Moth Circles The World

  • Filename: gipsy-moth-circles-the-world.
  • ISBN: 9781447234203
  • Release Date: 2012-09-27
  • Number of pages: 304
  • Author: Francis Chichester
  • Publisher: Pan Macmillan



From time immemorial, few narrative genres have had the power to so stir the emotions or captivate the imagination as the true account of a lone adventurer's triumph over the titanic forces of nature. Among the handful of such tales to emerge in the twentieth century, one of the most enduring surely must be Sir Francis Chichester's account of his solitary, nine-month journey around the world in his 53-foot ketch Gipsy Moth IV. The story of how the sixty-five-year-old navigator singlehandedly circumnavigated the globe, the whole way battling hostile seas as well as his boat's numerous design flaws, is a tale of superhuman tenacity and endurance to be read and reread by sailors and armchair adventurers alike. First published in 1967, just months after the completion of Chichester's historic journey, Gipsy Moth Circles the World was an instant international best-seller. It inspired the first solo around-the-world race and remains a timeless testament to the spirit of adventure. Francis Chichester's 1967 singlehanded circumnavigation set a blazing record for speed. He completed the voyage with just one stop and 226 days at sea. It was an amazing performance; that he was sixty-five years old made it the more so. Chichester then sat down to write one of the great narratives of modern voyaging.

Ocean Sailing

  • Filename: ocean-sailing.
  • ISBN: 1898660611
  • Release Date: 2000-07-21
  • Number of pages: 96
  • Author: Tom Cunliffe
  • Publisher: *Wiley Nautical



Tom Cunliffe has crossed many oceans. If blue water cruising is your game, this is the book for you. Part 1 covers celestial navigation - fixing your position by sextant. This is an interesting and elegant method of knowing where you are - and may save your life some day. Even in this electronic age, it is a skill every skipper should possess. Part 2 looks at the world's weather systems and how to use them to your advantage. Hurricanes and typhoons are analysed - with the emphasis on avoiding them! But if a trade wind squall strikes or an approaching hurricane looks like slipping by your strategic defences, Cunliffe is on hand with remedial advice. Part 3 explains what you actually do out at sea. It covers gathering information, making plans, what to take, how to run watch systems, and the delight of making long passages.

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