The Practical Navigator, and Seaman's New Daily Assistant; Being an Epitome of Navigation Including the Different Methods of Working the AR Observations. with Every Particular Requisite for Keeping a Complete Journal at Sea

The Practical Navigator, and Seaman's New Daily Assistant; Being an Epitome of Navigation Including the Different Methods of Working the AR Observations. with Every Particular Requisite for Keeping a Complete Journal at Sea

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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. 1795 edition. Excerpt: ... any considerable time, as from England to Jamaica; at the time of her leaving sight of land, she is said to take her departure, and that part of the land she then leaves, is said to be the place she takes her departure from; such as the Land's-end, Lizard, &c. and at the time of taking such departure, the captain or mate generally takes the bearing and distance of that land, (according to his judgment) and sets it down on the log-board, or in the log-book against the time it was taken, thus, Land's-end N. N. E. dist. 7 leagues, or Lizard N. by W. dist. 5 leagues, &c. In the fame manner may the departure from anv place be taken, as may be seen in the first day's logos the following journal, where the log-book is marked in columns for hours, knots, fathoms, courses, winds, leeway, transactions; and under it the columns for courses, distances, northings, or southings, eastings, or westings, the latitude by dead reckoning, latitude by observation, meridian, distance, difference of longitude, longitude in, and in the last, bearing and distance of the land. Notice must be taken, that in the column for course, you are always to sot down the course you have made by your reckoning for that twenty-four hours; that is, from the noon of the day before to the noon of the day you work on, the sea account being always kept from noon to noon. Dead reckoning, is thai account deduced from occurrences which are written on the log-board. In the columns for distance you are to set clown the distance made by your reckoning for that twenty-four hours. In the columns of northing and southing, you are to sot down the difference of latitude marie in that twenty-sour hours, marking the column with north, if the difference of latitude be north; and south, if south....show more

Product details

  • Paperback | 114 pages
  • 189 x 246 x 6mm | 218g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • Illustrations, black and white
  • 1236558464
  • 9781236558466