Treatise on marine and naval architecture, or, Theory and practice blended in ship building. Illustrated with more than 50 engravings (1852)
Griffiths, John W. (John Willis), 1809-1882 · New York : D. Appleton · leaf 392
inches in the slings, strikea centre line on the spar, (after spot-ting it to prevent its rolling,) middle it,and divide each half length into 4equal parts, which, with the middle andend, will make 5 spots or settings-off.The ordinary settings-off or sizes to beapplied at the several spots each… … MARINE AND NAVAL ARCHITECTURE. ,VA at the fourth spot or end, 41 inches.Thus we discover that in the slingsthe yard is 20 inches; at the first set-ting-off 191 inches; at the second,17£ inches ; at the third, 14 inches ;and at the end, 9i inches. We haveshown another kind of sweep in Fig-.3, that…
Naval architecture
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