Author: Nathaniel Bowditch
Publisher:
ISBN:
Category : Nautical astronomy
Languages : en
Pages : 886

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Author: Nathaniel Bowditch
Publisher: Paradise Cay Publications
ISBN: 9781951116057
Category : Sports & Recreation
Languages : en
Pages : 1230

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Book Description
This 2019 edition of The American Practical Navigator (Bowditch), Pub No. 9, exists to codify the latest body of marine navigation knowledge and practical application. Its publication success is a result of the dedicated efforts of many hands and voices from academia, science and seafaring experts. This edition has advanced from the judiciously shaped recommendations-some comprehensive, some minute, all indispensable-of a multitude of maritime and science professionals. At the same time, it was equally essential that those recommendations be compared, vetted, and applied in a consistent manner and with a clear vision, a challenging task performed in exemplary fashion by this edition's principal editor, Dr. Gerard J. Clifford, Jr.

Author: Bowditch
Publisher:
ISBN: 9781951116194
Category :
Languages : en
Pages :

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Author: Nathaniel Bowditch
Publisher: Paradise Cay Publications
ISBN: 9781937196264
Category : Study Aids
Languages : en
Pages : 974

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ...is the same as the latitude of the point on the line A', R/J 25 19'.4 S. B115 31.5 W. We now have two Sumner linee, A'and B', under Case I, whose common latitude is 25 19MS., and whose longitudes on the common parallel are 114 61K.7 and 115 31'.5. Hence, the difference of longitude on the common parallel is 115 31'.5 W. 114 59'.7 W. CHAPTER XVI. THE PEAOTIOE 01 NAVIGATION AT SEA. 381. Having set forth in previous chapters the methods of working dead reckoning and of solving problems to find the latitude, longitude, chronometer correction, and azimuth from astronomical observations, it will be the aim of the present chapter to describe the conditions which govern the choice and employment of the various problems, together with certain considerations by which the navigator may be guided in his practical work at sea. 382. Departure And Dead Reckoning.--On beginning a voyage, a good departure must, be taken while landmarks are still in view and favorably located for the purpose; this becomes the origin of the dead reckoning, which, with frequent new departures from positions by observation, is kept up to the completion of the voyage, thus enabling the mariner to know, with a fair degree of accuracy, the position of his vessel at any instant. At the moment of taking the departure, the reading of the patent log (which should have been put over at least long enough previously to be regularly running) must be recorded, and thereafter at the time of taking each sight and at every other time when a position is required for any purpose, the log reading must also be noted. It is likewise well to read the log each hour; for general information as to the speed of the vessel as well as to observe that it is in proper running order and that the rotator has not been fouled ...

Author: Nathaniel Bowditch
Publisher:
ISBN: 9781937196820
Category : Sports & Recreation
Languages : en
Pages : 1228

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Book Description
The American Practical Navigator, first published in 1802, was billed as the "epitome of navigation" by its original author, Nathaniel Bowditch. The text has evolved with the advances in navigation practices since that first issue and continues to serve as a valuable reference for marine navigation in the modern day. The publication describes in detail the principles and factors of navigation, including piloting, electronic navigation, celestial navigation, mathematics, safety, oceanography and meterology. It also contains various tables used in typical navigational calculations and solutions, including the formulas used to derive the tabular data. - NGA

Author: NIMA Staff
Publisher: ProStar Publications
ISBN: 9781577851936
Category : Transportation
Languages : en
Pages : 402

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Book Description
The Sight Reduction Tables for Marine Navigation (Pub 229) is published in six volumes, each of which contains two-eight degree zones of latitude with a one-degree overlap between volumes. They are designed to facilitate the practice of celestial navigation at sea. The tables are primarily used with the intercept method of sight reduction by entering arguments of latitude, declination, and local hour angle and obtaining tabulated altitudes and azimuth angles. The tables are prepared and published by NIMA on an as-needed basis.

Author:
Publisher: Ntl Inst for Trial Advocacy
ISBN: 9781601560162
Category : Law
Languages : en
Pages : 340

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Author: Paul Doiron
Publisher: Minotaur Books
ISBN: 125010243X
Category : Fiction
Languages : en
Pages : 297

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Book Description
In this thrilling entry in Edgar Award finalist Paul Doiron's bestselling series, a deadly attack on one of Maine's last wild wolves leads Game Warden Mike Bowditch to an even bigger criminal conspiracy. While on vacation, Warden Investigator Mike Bowditch receives a strange summons from Billy Cronk, one of his oldest friends and a man he had to reluctantly put behind bars for murder. Billy wants him to investigate a new female prison guard with a mysterious past, and Mike feels honor-bound to help his friend. But when the guard becomes the victim in a brutal attack at the prison, he realizes there may be a darker cover-up at play—and that Billy and his family might be at risk. Then Mike receives a second call for help, this time from a distant mountain valley where Shadow, a wolf-hybrid he once cared for, has been found shot by an arrow and clinging to life. He searches for the identity of the bowman, but his investigation is blocked at every turn by the increasingly hostile community. And when Billy’s wife and children are threatened, Mike finds himself tested like never before. How can he possibly keep the family safe when he has enemies of his own on his trail? Torn between loyalties, Mike Bowditch must respond in the only way he knows how: by bending every law and breaking every rule to keep his loved ones safe and the true predators at bay.

Author: Usno Nautical Almanac Office
Publisher:
ISBN: 9780914025269
Category : Reference
Languages : en
Pages : 314

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Book Description
Data in this book are no longer valid for navigation. It is preserved in print because many training programs (including USCG and US Navy ) use examples from 1981 to teach celestial navigation. USCG license exams require data from this almanac. These exams also require Sight Reduction Tables, Pub 229, Vol. 2 and a 2102-D Star Finder.

Author: Tamara Plakins Thornton
Publisher: UNC Press Books
ISBN: 1469626942
Category : Biography & Autobiography
Languages : en
Pages : 417

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Book Description
In this engagingly written biography, Tamara Plakins Thornton delves into the life and work of Nathaniel Bowditch (1773-1838), a man Thomas Jefferson once called a "meteor in the hemisphere." Bowditch was a mathematician, astronomer, navigator, seafarer, and business executive whose Enlightenment-inspired perspectives shaped nineteenth-century capitalism while transforming American life more broadly. Enthralled with the precision and certainty of numbers and the unerring regularity of the physical universe, Bowditch operated and represented some of New England's most powerful institutions—from financial corporations to Harvard College—as clockwork mechanisms. By examining Bowditch's pathbreaking approaches to institutions, as well as the political and social controversies they provoked, Thornton's biography sheds new light on the rise of capitalism, American science, and social elites in the early republic. Fleshing out the multiple careers of Nathaniel Bowditch, this book is at once a lively biography, a window into the birth of bureaucracy, and a portrait of patrician life, giving us a broader, more-nuanced understanding of how powerful capitalists operated during this era and how the emerging quantitative sciences shaped the modern experience.