Elements of Marine Surveying; For the Use of Junior Naval Officers with Numerous Exercises

Elements of Marine Surveying; For the Use of Junior Naval Officers with Numerous Exercises

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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. 1904 edition. Excerpt: ...the angle of elevation to the summit of an island, distant 2,240 yards in a horizontal direction, is 1 27'; height of eye 5 feet, tidal rise 12 feet. Required the height of the island above high water. (Sept. 'S3.) (4) From a rock awash at low water, the angle of elevation to a peak, distant 5,100 feet in a horizontal direction, is 2 10'; height of eye 5 feet, tidal rise 12 feet. Required the height of the peak above high water. (April, '84.) (5) From a reef awash at low water, the angle of elevation to the summit of a rock, distant 1,600 yards in a horizontal direction, is 0 57'; height of eye 5 feet, tidal rise 14 feet. Required the height of the rock above high water. (May, '84.) (6) From a ledge, drying 3 feet at low water, the angle of elevation to the summit of a headland, distant 4,700 feet in a horizontal direction, is 2 0'; height of eye 5 feet, tidal rise 18 feet. State the height of the headland above high water. (Dec. '84.) (7) From a rock 6 feet above high water, the angle of elevation to the summit of an island, distant 1,800 yards in a horizontal direction, is 2 4'; height of eye 5 feet. Required the height of the island above high water. (Feb. '86.) (8) From a rock awash at low water springs, the angle of elevation to a peak, distant 5,000 feet in a horizontal direction, is 2 30'; height of eye 5 feet, spring rise 15 feet. Required the height of the peak above high water. (Feb. '87.) (9) On a level beach 10 feet above high water--at A, the angle of elevation to the summit of a beacon is 2 4'; receding 760 yards with beacon and A in line to B, the angle of elevation to the summit is 1 2'; height of eye 5 feet. Required the height of the beacon above high water. (Nov. '83.) (10) On a level beach, 5 feet above high water, the angle...show more

Product details

  • Paperback | 74 pages
  • 189 x 246 x 4mm | 150g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236595548
  • 9781236595546