Stem, 24in. sided ; 44in. moulded (i.e., its fore and aft thickness) at head, and 54in. at knee scarph.
Sternpost, 3M. sided and moulded at heel; 2in. moulded at head.
Floors, sin. sided and 2in. moulded (deep) at heels, gradually tapering to fin. at heads. The floors will be fitted across the keel by 4in. joggles. Timbers at the sides and above floors, tin. square.
Plank, 4in. thick. Gunwales, lin. thick, 14in. deep.
Stringers (lettered a in the Sheer Plan) lin. square, fastened through timber and plank. Seats and rowlocks as at b b c c.
The centre-board or plate will be 5ft. 4in. long, pinned or pivotted in the keel below the garboard strakes, as shown in the Sheer Plan and Half breadth Plan (Plate III.) at d, 5ft. 9in. from fore side of the stem at L.W.L. The slot in the keel to admit the plate will be 5ft. 7in. long by lin. in width. The floors where this slot comes will have to be cut through. The heels of these floors will be fitted with lin. joggles, and let in to the under side of the centre-plate case, as shown at kkkkkkin the Sheer Plan. One 4in. copper nail through each heel (outside the centre-plate case) will be sufficient to fasten these floors to the keel. (The case must be very carefully fitted to the shape of the keel, and luted with white lead.) The centre-plate case will be fastened through the keel by long galvanised iron (iin.) bolts. The case will be made of inch pine; the plate of tin, iron.* Sometimes the case is made of galvanised iron, and fitted into the slot. With such cases it will be best to fit a keelson over the heels of the floor, as at k k, &c., on either side of the case. These keelsons would require to be about 3in. deep and 2in. broad, with one fastening between each pair of floors. However, as a rule, no such keelson is fitted, a couple of screws or nails in each heel of the floors being considered sufficient. The case would be prevented dropping through the slot in the keel by two small iron knees on either side, riveted to the case and fastened to the keelson.
Mr. W. Baden-Powell has furnished me with the following plan adopted by him in• fitting a galvanised iron centre-board case. a (see sketch A, Fig. 66) is the iron case, passing through a slot in the keel and turned up underneath as at c. Over the lips, c, of the case, turned under the
keel, an iron keel-band is fitted, as at 8 in Fig. A ; and 8 in Fig. B shows the under side of this keel-band. Bolts are put through this lips of the case, and keel, and fastened with washer and nut upon top of the keel as at o o. (The keel-band lips are shown a little apart for the sake of distinctness ; of course, in construction all would be drawn close together.) Two small T angle-iron knees are fitted each side of the case (a), riveted through the case and screwed down to the keel k, as at t t. Without these knees the case is likely to get wrenched on one side or the other unless well secured to a thwart. To prevent leakage, a piece of tarred or varnished tape should be laid in the angle of the lips of the case before screwing it up with the keel-band. The latter can be made of inch or thicker iron, as it will serve as outside ballast.
Fig. C shows a view of the case and its fittings, looking down from the inside of the boat ; a is the inside of the case ; k the keel ; t the iron knees ; f f two floors. w is a piece of wood forming one end of the case, and through-bolted, as shown.
The dead wood, knee, and sternpost aft will be through-fastened, as shown in the Sheer Plan; and the sternpost should be tenoned into the keel. Forward the keel and stem will be box-scarphed into each other, and through-bolted, as at n. The apron (8 in the Sheer Plan) will be bolted through keel and stem. The stemson t is a kind of filling-up piece, and serves as nightheads for additional plank fastenings forward. The upper through bolt in the stemson should have a ring through it, as shown.
The gunwale (which is equivalent to the clamp or shelf in a yacht, and rests on the timber heads) will be secured to the stem forward by " breasthook," as shown by a, diagram A (see Sheer Plan, Plate This breasthook will have one fastening through the stem, and two through each gunwale and top strake, as shown. The gunwale and top strake will be secured to the transom by the knee, as shown at in in the Half-breadth Plan, through-fastened. A fastening will also be put through the gunwale and strake into the transom.