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LAKE SHIP YARD METHODS OF STEEL SHIP CONSTRUC- : TION. . BY ROBERT CURR, -- _ STERN BUILDING. Fig. 64 shows the plating and cant frames on the sheer plan. The Marine REVIEW the same numbered lines on the half. breadth plan, Fig. 68. The -buttock lines on the ~ half breadth plan .are two feet apart and parallel to the center line, which are shown by the numbers. All the numbered lines on these two plans represent buttock lines with the Fre. 64. READ \ Buz WARKS Fig. 65 shows the half breadth plan of the stern. The bulwarks are not on this plan, only the plating and cant frames. - Fig. 66 shows half plan of spar deck stringer around the stern. Numbers fr 2. 3, 4, 5, 6 and 7 répresent the cant frame beams. : : Lines 2 B, 4 B, 6 B, 8 B, 10 B, 12 B, 14 B and 16 B represent the buttock lines. 198 represents' the transom frame and the other numbers the frames before same, DECK AND KNUCKLE LINES, Fig. 67 shows the sheer plan and Fig. 68 the half breadth plan. These two plans show the method of get- ting the knuckle and deck lines as shown by following up the numbered lines. : The sheer plan, Fig. 67, is the first pian tobe fixed. .Im this case the knuckle line is run in parallel to the deck on the sheer plan, Fig. 67, and all the buttock lines numbering 2, 4, 6, 8, 10, 12, 14 and 16 are ended on same, From the knuckle line the buttock lines are drawn in parallel to C D and in- tersect the deck at side, as shown by numbers 2, 4, 6,8, 10, 12, 14 and 16 shown on Fig. 67. From the- deck the lines are run down to the half breadth plan and where they cut the same numbered buttock line on the half breadth giving points for the deck line in plan. The same process is gone through for the knuckle line as shown by lines running from the knuckle Fig. 67 to *} STRINGERANGEE L Qed KnucKwLé& extreme after end-of the deck at cen- er. From the line A C the buttock lines, 2, 4, 6, 8, 10, 12, 14 and'16 are. meas- -ured square to the intersection of the deck line on Fig. 67 and transferred to Fig. 68 on the same lines as shown by the same, numbers, giving the deck line as shown on half breadth plan, Fig. 68. The same process is gone through for to get in the knuckle line on the _ half breadth plan. E D represents the extreme after end of the knuckle at center and by measuring from this line to where the buttock lines intersect the knuckles at side and transferring same to_ half breadth plan furnishes the knuckle line, as shown on Fig. 68 By following up the numbered lines on the two plans the deck and knuckle lines will be plainly seen SET LINES. After the knuckle and deck lines have been faired up the set lines for the deck and knuckles are run in. D F, Fig. 60, is the set line and is run in on the sheer plan at right an- gles to C DG. Gis a continuation of 19% TRANSOM 19°F, ype ? exception of the frame lines 195, 106 197 and 108. ' The method of transferring the lines from plan 67 to 68 is done by erecting a perpendicular line from A to C, representing the deck line at the F7G 65, _ \ the line-C D:: Brom DG at tight an- gles the lines 2 to 18 are run to the knuckle intersecting the buttock lines on same and the measurements from DG to 2 4, 6, 8, 102,14 and 16.are transferred to the half breadth plan, :