Proceed to set of the several half breadths and endings of the third water line ; at S, 12 feet 4 inches ; at 0,15 feet 8 inches ; at K, 20 feet 3 inches ; at F, 21 feet; at ED, 21 feet 5 inches ; at 6, 21 feet 44 inches ; at 12, 21 feet 1 inch ; at 18, 20 feet 3 inches ; at 24,18 feet : at 30,12 feet; and at 36, 1 foot 5 inches. We must here remark, that, to complete this line forward with an arch, the radius would be too long for practice ; it must there fore be finished by a mould or thin bat ten.
Proceed to set off the several half breadths and endings of the second wa ter line. Set up at S, 7 feet 3 inches ; at 0, 13 feet 6 inches ; at K, 17 feet 2 inch es ; at F, 18 feet 11 inches ; at ED, 19 feet 3 inches ; at 6, 19 feet 2} inches ; at 12, 18 feet 11 inches ; at 18, 17 feet 8 inch es ; at 24, 14 feet 2 inches ; at 30, 6 feet 2 inches ; and at 36, 8 inches ; draw it as the last.
Lastly, for the first or lower water line: set up at 9, 3 feet; at 0, 8 feet ; at K,12 feet 6 mches ; at F, 15 feet 3 inches ; at e,16 feet 2 inches; at 6, 16 feet 1 inch; at 12, 15 feet 3 inches ; at 18, 12 feet Oi inch ; at 14, 7 feet ; at 30, 2 feet 1 inch ; and at 36, 4 inches.
Now, all the water lines being drawn in the half breadth plan, and their deli cacy of shape, if we may so term it, well examined, we may proceed to show whe ther they will likewise make fair timbers in the body plan : thus transfer the Seve ral half breadths of the water lines, as taken at e, and set them off from the middle line, on their corresponding wa ter lines, in the fore body plan, which will be found to answer with the shape of e, already drawn ; then proceed in the same manner with the other timbers before e, drawing curves through the several half breadths, and ending them at the keel to the inside of the rabbit ; but as timber S comes upon the stem in the sheer plan, the keeling will also come on the stem in the body plan ; therefore its height must be taken above the line, at the upper edge of the rabbit, as conti nued before the stem, to where timber S intersects the fore side of the rabbit on the stem, and transfer that height to the fore body plan, to intersect the half thickness of the stem above the base line, or upper edge of the rabbit ; in midships then, with a radius of 4 inches, sweep an arch from that height within the half thickness of the stem, then a line drawn through the several half breadths of 8, and ending over the back of the arch, at the keeling timber, S will be drawn ; and, to complete the keel, draw a square line from the back of the timber, to intersect the height of the keeling at the half thickness of the stem, and the timber 9 will be complete below the breadth. Thus, having the perpendicular fore and aft appearance of the several timbers in the fore body, they may now be strictly examined, and any unfairness readily pointed out; again, as a further proof, square up perpendicular lines close for ward, about 2 feet asunder, or less, (the same may be done close aft hereafter, for the proof of the fairness of the water lines abaft,) then transfer the several half breadths, as before, from the half breadth to the body plan, and if they make hand some curves in the body plan, when drawn, the water lines may be said to be constructed with exactness.
But it may be necessary here just to describe to our readers what is meant by the term fair, as it often occurs in the for mation of the several lines ; which is, that all the lines should please the eye, hav ing no inequalities, but produce a 'beau tiful line, (one sense of the word fair,) and this is not an incongruous term, for Ho garth calls a curve, or serpentine line, the line of beauty, of which no architecture has such a variety as that of a ship.
Now complete the top sides, or upper part of the body and sheer plan, above the lower height of breadth. Thus, set off the upper height of breadth, in the sheer plan : at 8,25 feet 10 inches; at 0, 24 feet 6 inches; at K, 23 feet 10 inches ; at F, 23 feet 5 inches ; at 9, 23 feet 4 inches ; at 6, 23 feet 4 inches ; at 12, 23 feet 44 inches ; at 18, 23 feet 6 inches; at 24, 24 feet 1 inch ; at 30, 25 feet ; and at 36, 27 feet 1 inch; and at the after per pendicular 28 feet 3 inches. Then, by drawing a curve through those heights intersecting the lower height of breadth, forward and aft, the upper height of breadth line will be represented. Then transfer these heights from the sheer to the body plan, and thereat draw horizon tal lines across the body plan, then square up the several timbers from the lower to the upper height of breadth, as between those heights the timbers are straight, and of one breadth. Then, with a 15 feet radius, called the length of the upper breadth sweep, draw arches upwards, from the breadth squared up, and at that centre in each upper breadth line. Draw in the sheer plan the top-timber line, for it is at this height that the top side is li mited to a certain breadth, called the top-timber breadth. Set up above the upper edge of the keel, in the sheer plan, at timber 9, 37 feet 3 inches ; at 0, 36 feet 9 inches; at K, 36 feet 1 inch ; at F, 35 feet 8 inches ; at feet 6 inches ; at 6, 35 feet 9 inches; at 12, 36 feet 4 inches; at 18, 36 feet 11 inches; at 24, 37 feet 10 inches ; at 30, 38 feet 10 inch es ; and at 36, 40 feet. Draw a curve through these heights, and that will be the top-timber line in the sheer plan. Then set off the several top-timber half breadths, in the half breadth plan, by setting up at S, 20 feet 4 inches ; at 0, 21 feet ; at K, 21 feet 11 inches; at F, 22 feet ; at e, 22 feet 2 inches; at 6, 22 feet 4 inch ; at 12, 22 feet ; at 18, 21 feet 7 inches ; at 24, 20 feet 8 inches ; at 30, 18 feet 10 inches ; at 36, 16 feet ; and at the after end, 12 feet; and at the fore end, or beak head, 17 feet. Draw a curve through these several half breadths, and the top-timber half breadth will be re presented. Transfer the several heights of the top-timber line from the sheer to the body plan, and at those heights draw horizontal lines; then from the half breadth plan transfer the several top-tim ber half breadths, and set them off from the middle line in the body plan upon their corresponding heights; then with a mould, about three inches curve, (called the top-timber hollow,) fixed well at the top-timber half breadth, and back of the upper sweep, at e, draw a line to the top of the side, and on the midship timber will be found from the keel to the gunwale.