HO-249 Air Navigation Volume 1 Selected Stars - Epoch 2025

HO-249 Air Navigation Volume 1 Selected Stars - Epoch 2025

Author: Celestaire

Publisher:

Published: 2021-10

Total Pages:

ISBN-13: 9781639445295

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These tables were designed for air navigation where weight and space are at a premium, however, they are very popular with sailors too due to the fact that Vol. 1 offers a speedier way to compute stars. Volume 1 contains some stars (whose declinations may be more than 29°) that are pre-selected for optimum viewing and direction. This volume is applicable for an 8 year period, centered on its Epoch date.


Celestial Navigation in the GPS Age

Celestial Navigation in the GPS Age

Author: John Karl

Publisher: Paradise Cay Publications

Published: 2007

Total Pages: 292

ISBN-13: 9780939837755

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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.


Sextant

Sextant

Author: David Barrie

Publisher: Harper Collins

Published: 2014-05-13

Total Pages: 386

ISBN-13: 006227936X

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In the tradition of Dava Sobel's Longitude comes sailing expert David Barrie's compelling and dramatic tale of invention and discovery—an eloquent elegy to one of the most important navigational instruments ever created, and the daring mariners who used it to explore, conquer, and map the world. Since its invention in 1759, a mariner's most prized possession has been the sextant. A navigation tool that measures the angle between a celestial object and the horizon, the sextant allowed sailors to pinpoint their exact location at sea. David Barrie chronicles the sextant's development and shows how it not only saved the lives of navigators in wild and dangerous seas, but played a pivotal role in their ability to map the globe. He synthesizes centuries of seafaring history and the daring sailors who have become legend, including James Cook, Matthew Flinders, Robert Fitz-Roy, Frank Worsley of the Endurance, and Joshua Slocum, the redoubtable old "lunarian" and first single-handed-round-the-world yachtsman. He also recounts his own maiden voyage, and insights gleaned from his experiences as a practiced seaman and navigator. Full of heroism, danger, and excitement, told with an infectious sense of wonder, Sextant offers a new look at a masterful achievement that changed the course of history.


Command Of The Air

Command Of The Air

Author: General Giulio Douhet

Publisher: Pickle Partners Publishing

Published: 2014-08-15

Total Pages: 620

ISBN-13: 1782898522

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In the pantheon of air power spokesmen, Giulio Douhet holds center stage. His writings, more often cited than perhaps actually read, appear as excerpts and aphorisms in the writings of numerous other air power spokesmen, advocates-and critics. Though a highly controversial figure, the very controversy that surrounds him offers to us a testimonial of the value and depth of his work, and the need for airmen today to become familiar with his thought. The progressive development of air power to the point where, today, it is more correct to refer to aerospace power has not outdated the notions of Douhet in the slightest In fact, in many ways, the kinds of technological capabilities that we enjoy as a global air power provider attest to the breadth of his vision. Douhet, together with Hugh “Boom” Trenchard of Great Britain and William “Billy” Mitchell of the United States, is justly recognized as one of the three great spokesmen of the early air power era. This reprint is offered in the spirit of continuing the dialogue that Douhet himself so perceptively began with the first edition of this book, published in 1921. Readers may well find much that they disagree with in this book, but also much that is of enduring value. The vital necessity of Douhet’s central vision-that command of the air is all important in modern warfare-has been proven throughout the history of wars in this century, from the fighting over the Somme to the air war over Kuwait and Iraq.


The Air Almanac

The Air Almanac

Author: United States Naval Observatory. Nautical Almanac Office

Publisher: Department of the Navy

Published: 2005-04-30

Total Pages: 734

ISBN-13: 9780160724824

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Provides astronomical data for air navigation. Contains ephemeral data for the year, together with auxiliary tables and graphs, and a brief explanation of the use of the volume. Presents data for the Sun, Moon, Aries, planets, and stars. Includes a CD-ROM in a pocket which contains the same information as found on the printed publication in Portable Document Format (PDF). Requires Adobe Acrobat Reader or similar product to view and print.