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 294
g. 77. AB is astraight-edged batten pivoted at C, and carried by a frame having attached to it asemicircular gra-duatedarc. Supposethat, when the shipis upright and atrest, the base of theinstrument is sofixed that thepivoted bar, occupy-ing the position AB, 4is horizontal. Thenthe line ACB… … 2 74 NAVAL ARCHITECTURE. chap. vii. batten will always keep it pointed to the horizon, and its motionscan be observed on the graduated arc. For example, suppose theposition FE to have been reached, tlien the angle EOB (a littleover 20 degrees) will indii-ate the inclination of the masts of theship…
Naval architecture
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