A manual of naval architecture. For the use of officers of the Royal Navy, officers of the Mercantile Marine, shipbuilders, shipowners, and yachtsmen (1889)
White, W. H. (William Henry), Sir, 1845-1913 · London, J. Murray · leaf 641
en signal, observe simultaneously, andrecord the angles a and /3 made with the line AB by theirrespective lines of sight to a floating object, 0, placed within thepath traversed by the vessel. This object may be anchored ifthere is no tide or current, but otherwise may be a simple buoyor boat with… … FIG 133a. 11- comparison and analysis of the results. To com-plete the plotting of thepath of the ship, it isnecessary to fix the posi-tion of any such triangleas AOB ; this is done bya third observer, C, whonotes and records thebearings of a tixed anddistant object, with refer-ence to the…
Naval architecture
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