Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 563
struction at mid ship-breadth,and halve this breadth, MO; at right angles to M M at 0draw the centre line of the length of the bow, 0 X ; on eachhalf-breadth describe a half-circle, dividing its circumferenceinto, say, eight equal parts. Divide the length 0 X into thesame number of equal parts. The… … Fig. ia03. circles draw lines parallel to 0 X, and through the divisionsof 0 X lines parallel to M M. These, intersecting one an--other, show the successive points in the required water-line.The line traced through all these points is the tvave luater-line of least resistance for a given length of…
Mechanical drawing
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