Author: David Burch Publisher: ISBN: 9780914025184 Category : Sports & Recreation Languages : en Pages : 176
Book Description
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.
Author: David Burch Publisher: ISBN: 9780914025511 Category : Sports & Recreation Languages : en Pages : 296
Book Description
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.
Author: David Burch Publisher: ISBN: 9780914025245 Category : Sports & Recreation Languages : en Pages : 106
Book Description
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.
Author: John Karl Publisher: Paradise Cay Publications ISBN: 9780939837755 Category : Technology & Engineering Languages : en Pages : 292
Book Description
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.
Author: Rita Ariyoshi Publisher: Edizioni WhiteStar ISBN: 8854419257 Category : Travel Languages : en Pages : 402
Book Description
With this beautifully illustrated guidebook's extensive information for off-the-beaten-path and authentic spots on each Hawaiian island, you'll be able to plan your next visit to Hawaii mindfully, with exclusive experiences in mind. National Geographic Traveler: Hawaii is the ideal companion for finding your bearings in the wide range of possibilities offered by the Hawaiian Islands, those jewels rising up in the middle of the vast Pacific Ocean. The islands are the quintessential tropical paradise, but they're also full of surprises: delicious cuisine, the most active volcano in the country, fabulous sea cliffs, and refined boutiques. A unique atmosphere with Polynesian and Asian influences that are embedded in a genuinely American spirit, each of the six major islands has its own distinct character: Oahu, the cosmopolitan meeting place; Maui, young, lush, and sporty; Kauai, the garden isle; Hawaii, the big island or the orchid of the archipelago; Molokai, family-oriented and welcoming; and Lanai, a haven of peace and serenity. Making knowledgeable choices for your visit with the help of National Geographic experts will make your experience on the islands a memorable one. Discover the best Hawaii has to offer with: Driving tours―from Volcano National Park to the famed Road to Hana; A narrative that highlights the lifestyle, history, and modern culture of the islands; Off-the-beaten path excursions; The best spots for spotting turtles, dolphins, and whales off-shore; Top-notch diving and snorkeling destinations; And so much more. You have to visit the Hawaiian Islands to truly understand the profound meaning of Aloha, which is more than just a greeting. Discover how Aloha infiltrates every aspect of Hawaiian life with suggestions from National Geographic photographers and travel experts that take the guesswork out of planning your next trip.
Author: Dave Shively Publisher: Rowman & Littlefield ISBN: 1493026828 Category : Sports & Recreation Languages : en Pages : 177
Book Description
Winner of the 2019 National Outdoor Book Award for Outdoor Literature! 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.
Author: James L. Haley Publisher: Macmillan ISBN: 0312600658 Category : History Languages : en Pages : 447
Book Description
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.
Author: Sam Low Publisher: University of Hawaii Press ISBN: 0824875249 Category : History Languages : en Pages : 0
Book Description
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.
Author: John Jourdane Publisher: John Jourdane ISBN: 9780963189615 Category : Biography & Autobiography Languages : en Pages : 300
Book Description
Hop aboard for a wild sail across the oceans of the world with John Jourdane. This book chronicles 45 years of John's life sailing with oceans of the world. Travel from sailing sabots in California to sailing with Kings in Europe; from sailing the trade winds of Hawaii and Tahiti to racing around the world in the icy Roaring Forties near Antarctica; from cruising the beautiful atolls of Micronesia to visiting the wild game parks of South Africa. John is one of the world's most experienced offshore sailors, having sailed over 300,000 miles. He has crossed the Pacific Ocean 47 times, the Atlantic 12 times, and has circumnavigated the world 3 times, including 2 Whitbread Round the World Races. If you have an ounce of saltwater in your blood, you will love this book.
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Author: David Burch
Author: David Burch
Author: David Burch
Author: John Karl
Author: Nathaniel Bowditch
Author: Rita Ariyoshi
Author: Dave Shively
Author: James L. Haley
Author: Sam Low
Author: John Jourdane