American Practical Navigator Volume 2 1981 Edition
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American Practical Navigator Volume 2 1981 Edition
Author | : Nathaniel Bowditch |
Publsiher | : Paradise Cay Publications |
Total Pages | : 974 |
Release | : 1981-01-01 |
Genre | : Study Aids |
ISBN | : 1937196267 |
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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 ...
American Practical Navigator BOWDITCH 1981 Vol2 7x10
Author | : Nathaniel Bowditch |
Publsiher | : Paradise Cay Publications |
Total Pages | : 974 |
Release | : 2016-01-27 |
Genre | : Transportation |
ISBN | : 1937196496 |
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used for study of celestial navigation. This is the 1981 edition volume 2.
American Practical Navigator Bowditch 1981 Edition
Author | : Nathaniel Bowditch |
Publsiher | : Paradise Cay Publications |
Total Pages | : 974 |
Release | : 2015-12-01 |
Genre | : Transportation |
ISBN | : 1937196453 |
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used for study of celestial navigation. This is the 1981 edition volume 2.
Useful Tables
Author | : Nathaniel Bowditch |
Publsiher | : Unknown |
Total Pages | : 188 |
Release | : 1859 |
Genre | : Electronic Book |
ISBN | : HARVARD:32044091895094 |
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American Practical Navigator
Author | : Nathaniel Bowditch |
Publsiher | : Unknown |
Total Pages | : 886 |
Release | : 1931 |
Genre | : Nautical astronomy |
ISBN | : MINN:31951002351035M |
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American Practical Navigator BOWDITCH 1984 Vol1 Part 2 7x102
Author | : Nathaniel Bowditch |
Publsiher | : Paradise Cay Publications |
Total Pages | : 748 |
Release | : 2016-01-27 |
Genre | : Transportation |
ISBN | : 1937196518 |
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used for study of celestial navigation. This is the 1981 edition volume 2.
The Nautical Almanac for the Year 1981 For Training Purposes Only
Author | : Usno Nautical Almanac Office,H. M. Nautical Almanac Office |
Publsiher | : Unknown |
Total Pages | : 314 |
Release | : 2011-06 |
Genre | : Reference |
ISBN | : 0914025260 |
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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.
American Practical Navigator 1984 Ed Vol 1
Author | : Nathanial Bowditch |
Publsiher | : Paradise Cay Publications |
Total Pages | : 684 |
Release | : 2015-11-01 |
Genre | : Electronic Book |
ISBN | : 1937196321 |
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Reprint of the 1984 edition of the "Bowditch" used for study purposes. Used in conjunction with the 1981 edition of Volume 2. This edition is broken into two parts in order to facilitate on-demand-printing, and this is Part 1 that includes pages 1-684.