Having all our material ready, it will be best to mark out the different pieces, and have them all sawed at once by a steam-saw.
Beginning with the bow and stern, we will lay off on one corner of the ten-inch board a line two feet long, representing the dotted line c d in Fig. 1.
A line is drawn half an inch from the edge from the point 11 to 12, making a notch for the end of the keelson; and the two feet are divided into four parts, and perpendiculars drawn at each point.
Now measure off on the line a d nine and a half inches, giving the point a; on the others three and a quarter inches, an inch, and a quarter of an inch; then draw a line from a to c through all these points.
The shape of the inner line is not important, so it may be drawn by eye, making it thick enough for strength.
As the bow and stern are alike, two of these pieces are needed.
The keelson must be cut from the same board, being three inches wide at the centre, tapering to one inch at the ends.
To obtain the shapes of the moulds or sections we must enlarge Fig. 4 four times to its full size.
The horizontal lines in the drawing are one-fourth of an inch apart, so in our large drawing they will be one inch; then taking the line marked 2 (Nos. 1 and 13 require no moulds), we find the distance of the point g to be one and seven-sixteenths inches from the centre line, so we make it four times as much, or five and three-fourths inches, and continue with the other points until we have enough to determine the line pretty closely, after which we join them with the line g h, giving the shape of one-half of our first mould.
The lines on the right represent the half sections in the fore end of the boat, and those on the left the after end.