Fig. 5.
Section on Line G.H.
2 2 Gunwales. Shaded portion a single rib. g1 g2 Screws for securing ribs together.
There will be two more sections required, somewhat similar to the amidships one, placed at distances of 3 ft. on either side of it. We will first take the one shown as section G H in [Fig. 5], which is a section along the line G H of the plan [Fig. 8]; which appears on [page 271].
This can be made in two ways—either the same as the amidships one, in a single piece cut from a soft wood, or in two pieces cut from a hard wood.
I made mine in the latter way, and that is the way I shall describe; but in either case the notches and outline are the same, and [Fig. 5] shows both methods of cutting the inside, the shaded part showing the form of the hard wood rib.
The outline can be obtained by reference to [Fig. 5], which is drawn to a scale of 1 in. to the foot.
The centres of the curves are at x x, and the batten of the straight part is 1 in. in 6 in.
The notches required in each rib are as follows, commencing at g3:—(11⁄4 in.,) 21⁄2 in., (11⁄4 in.,) 3 in., (11⁄4 in.,) 1⁄2 in., (11⁄4 in. A,) 3⁄4 in., (11⁄4 in.,) 2 in., (11⁄4 in.,) 21⁄4 in., (11⁄4 in.,) 11⁄8 in. the keelson, and the same on the other side. The notch marked A will be noticed farther on when the time comes for fixing the laths. This section must be firmly screwed to the keelson at 3 ft. from the bows. A seat is also required across it, and the remarks made about the amidship seat will apply to this, except that, perhaps, this should be made the stronger one, as a hole of 11⁄2 in. diameter will be required in its exact centre if it is desired to use the boat for sailing.
Fig. 6.
Section on Line. I.J of Plan.