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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.
Book Synopsis Hawaii by Sextant: An In-Depth Exercise in Celestial Navigation Using Real Sextant Sights and Logbook Entries by : David Burch
Download or read book Hawaii by Sextant: An In-Depth Exercise in Celestial Navigation Using Real Sextant Sights and Logbook Entries written by David Burch and published by . This book was released on 2014-03-14 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
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 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.
Book Synopsis How to Use Plastic Sextants with Applications to Metal Sextants and a Review of Sextant Piloting by : David Burch
Download or read book How to Use Plastic Sextants with Applications to Metal Sextants and a Review of Sextant Piloting written by David Burch and published by . This book was released on 2010-09 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 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.
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.
Book Synopsis Celestial Navigation by : David Burch
Download or read book Celestial Navigation written by David Burch and published by . This book was released on 2016-03-04 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
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.
Book Synopsis Celestial Navigation in the GPS Age by : John Karl
Download or read book Celestial Navigation in the GPS Age written by John Karl and published by Paradise Cay Publications. This book was released on 2007 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
In the summer of 1987 Ed Gillet achieved what no person has accomplished before or since, a solo crossing from California to Hawaii by kayak. Gillet, at the age of 36 an accomplished sailor and paddler, navigated by sextant and always knew his position within a few miles. Still, Gillet underestimated the abuse his body would take from the relentless, pounding, swells of the Pacific, and early into his voyage he was covered with salt water sores and found that he could find no comfortable position for sitting or sleeping. Along the way he endured a broken rudder, among other calamities, but at last reached Maui on his 63rd day at sea, four days after his food had run out. Dave Shively brings Gillet’s remarkable story to life in this gripping narrative, based on exclusive access to Gillet’s logs as well as interviews with the legendary paddler himself.
Book Synopsis The Pacific Alone by : Dave Shively
Download or read book The Pacific Alone written by Dave Shively and published by Rowman & Littlefield. This book was released on 2018-10-01 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the summer of 1987 Ed Gillet achieved what no person has accomplished before or since, a solo crossing from California to Hawaii by kayak. Gillet, at the age of 36 an accomplished sailor and paddler, navigated by sextant and always knew his position within a few miles. Still, Gillet underestimated the abuse his body would take from the relentless, pounding, swells of the Pacific, and early into his voyage he was covered with salt water sores and found that he could find no comfortable position for sitting or sleeping. Along the way he endured a broken rudder, among other calamities, but at last reached Maui on his 63rd day at sea, four days after his food had run out. Dave Shively brings Gillet’s remarkable story to life in this gripping narrative, based on exclusive access to Gillet’s logs as well as interviews with the legendary paddler himself.
A narrative history of Hawaii profiles its former existence as a royal kingdom, recounting the wars fought by European powers for control of its position, its adoption of Christianity, and its annexation by the United States.
Book Synopsis Captive Paradise by : James L. Haley
Download or read book Captive Paradise written by James L. Haley and published by Macmillan. This book was released on 2014-11-04 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: A narrative history of Hawaii profiles its former existence as a royal kingdom, recounting the wars fought by European powers for control of its position, its adoption of Christianity, and its annexation by the United States.
Attuned to a world of natural signs—the stars, the winds, the curl of ocean swells—Polynesian explorers navigated for thousands of miles without charts or instruments. They sailed against prevailing winds and currents aboard powerful double canoes to settle the vast Pacific Ocean. And they did this when Greek mariners still hugged the coast of an inland sea, and Europe was populated by stone-age farmers. Yet by the turn of the twentieth century, this story had been lost and Polynesians had become an oppressed minority in their own land. Then, in 1975, a replica of an ancient Hawaiian canoe—Hōkūle‘a—was launched to sail the ancient star paths, and help Hawaiians reclaim pride in the accomplishments of their ancestors. Hawaiki Rising tells this story in the words of the men and women who created and sailed aboard Hōkūle‘a. They speak of growing up at a time when their Hawaiian culture was in danger of extinction; of their vision of sailing ancestral sea-routes; and of the heartbreaking loss of Eddie Aikau in a courageous effort to save his crewmates when Hōkūle‘a capsized in a raging storm. We join a young Hawaiian, Nainoa Thompson, as he rediscovers the ancient star signs that guided his ancestors, navigates Hōkūle‘a to Tahiti, and becomes the first Hawaiian to find distant landfall without charts or instruments in a thousand years. Hawaiki Rising is the saga of an astonishing revival of indigenous culture by voyagers who took hold of the old story and sailed deep into their ancestral past.
Book Synopsis Hawaiki Rising by : Sam Low
Download or read book Hawaiki Rising written by Sam Low and published by University of Hawaii Press. This book was released on 2019-11-30 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Attuned to a world of natural signs—the stars, the winds, the curl of ocean swells—Polynesian explorers navigated for thousands of miles without charts or instruments. They sailed against prevailing winds and currents aboard powerful double canoes to settle the vast Pacific Ocean. And they did this when Greek mariners still hugged the coast of an inland sea, and Europe was populated by stone-age farmers. Yet by the turn of the twentieth century, this story had been lost and Polynesians had become an oppressed minority in their own land. Then, in 1975, a replica of an ancient Hawaiian canoe—Hōkūle‘a—was launched to sail the ancient star paths, and help Hawaiians reclaim pride in the accomplishments of their ancestors. Hawaiki Rising tells this story in the words of the men and women who created and sailed aboard Hōkūle‘a. They speak of growing up at a time when their Hawaiian culture was in danger of extinction; of their vision of sailing ancestral sea-routes; and of the heartbreaking loss of Eddie Aikau in a courageous effort to save his crewmates when Hōkūle‘a capsized in a raging storm. We join a young Hawaiian, Nainoa Thompson, as he rediscovers the ancient star signs that guided his ancestors, navigates Hōkūle‘a to Tahiti, and becomes the first Hawaiian to find distant landfall without charts or instruments in a thousand years. Hawaiki Rising is the saga of an astonishing revival of indigenous culture by voyagers who took hold of the old story and sailed deep into their ancestral past.
In the summer of 1985, a mostly Hawaiian crew set out aboard Hokule'a, a reconstructed ancient double canoe, to demonstrate what skeptics had steadfastly denied: that their ancestors, sailing in such canoes and navigating solely by reading stars, ocean swells, and other natural signs, could intentionally have sailed across the Pacific, exploring the vast oceanic realm of Polynesia and discovering and settling all its inhabitable islands. Their round-trip odyssey from Hawai'i to Aotearoa (New Zealand), across 12,000 nautical miles, dramatically refuted all theories declaring that—because of their unseaworthy canoes and inaccurate navigational methods—the ancient Polynesians could only have been pushed accidentally to their islands by the vagaries of wind and current. Voyage of Rediscovery is a vivid, immensely readable account of this remarkable journey through the Pacific, including tales of a curiosity attack by sperm whales and the crew's welcome to Aotearoa by Maori tribesmen, who dubbed them their sixth tribe. It describes how Hawaiian navigator Nainoa Thompson guided the canoe over thousands of miles of open ocean without compass, sextant, charts, or any other navigational aids. In so doing, it documents the experimental voyaging approach, developed by Ben Finney, which has both transformed our ideas about Polynesian migration and voyaging and been embraced by present-day Polynesians as a way to experience and celebrate their rich ancestral heritage as premier seafarers. By sailing in the wake of their ancestors, the Hawaiians and other Polynesians who captained, navigated, and crewed Hokule'a made the journey described here a cultural as well as a scientific odyssey of exploration.
Book Synopsis Voyage of Rediscovery by : Ben Finney
Download or read book Voyage of Rediscovery written by Ben Finney and published by Univ of California Press. This book was released on 2023-11-10 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the summer of 1985, a mostly Hawaiian crew set out aboard Hokule'a, a reconstructed ancient double canoe, to demonstrate what skeptics had steadfastly denied: that their ancestors, sailing in such canoes and navigating solely by reading stars, ocean swells, and other natural signs, could intentionally have sailed across the Pacific, exploring the vast oceanic realm of Polynesia and discovering and settling all its inhabitable islands. Their round-trip odyssey from Hawai'i to Aotearoa (New Zealand), across 12,000 nautical miles, dramatically refuted all theories declaring that—because of their unseaworthy canoes and inaccurate navigational methods—the ancient Polynesians could only have been pushed accidentally to their islands by the vagaries of wind and current. Voyage of Rediscovery is a vivid, immensely readable account of this remarkable journey through the Pacific, including tales of a curiosity attack by sperm whales and the crew's welcome to Aotearoa by Maori tribesmen, who dubbed them their sixth tribe. It describes how Hawaiian navigator Nainoa Thompson guided the canoe over thousands of miles of open ocean without compass, sextant, charts, or any other navigational aids. In so doing, it documents the experimental voyaging approach, developed by Ben Finney, which has both transformed our ideas about Polynesian migration and voyaging and been embraced by present-day Polynesians as a way to experience and celebrate their rich ancestral heritage as premier seafarers. By sailing in the wake of their ancestors, the Hawaiians and other Polynesians who captained, navigated, and crewed Hokule'a made the journey described here a cultural as well as a scientific odyssey of exploration.
A novel about a great Polynesian voyaging canoe; "Takitumu"; and the people who sailed across Te Moana Nui a Kiva (the Pacific Ocean).
Book Synopsis Vaka by : Thomas R. A. H. Davis
Download or read book Vaka written by Thomas R. A. H. Davis and published by [email protected]. This book was released on 1999 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: A novel about a great Polynesian voyaging canoe; "Takitumu"; and the people who sailed across Te Moana Nui a Kiva (the Pacific Ocean).
Book Synopsis American Practical Navigator by : Nathaniel Bowditch
Download or read book American Practical Navigator written by Nathaniel Bowditch and published by . This book was released on 1931 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
