First Stage of Canoe Construction: assembled gunwale frame is used to locate stakes temporarily on building bed. Instead of the gunwales, a building frame was used in some areas. (Sketch by Adney.)
The second pair of thwarts is placed 30 inches, center to center, from the first pair, one at each end, and on the basis of this measurement the tenons are cut as for the others. These two thwarts are made of ⅝-by 4-inch pieces tapering in thickness each way from the center to the shoulder, where they are a scant 5⁄16 inch thick, the tenons having the same dimensions as in the other thwarts. In width the thwarts are worked to an even 3 inches from shoulder to shoulder, but in the form of a curve so that when each thwart is in place its center will be bowed toward the ends of the canoe, viewed from above. As in the first pair, the shoulders and ends are cut to a bevel to fit the gunwale; at the centerline they each measure 12 inches shoulder-to-shoulder in a straight line athwartships and 15 inches end-to-end. Allowing for bevel, the maximum length is just over 155⁄16 inches. These thwarts are drilled for single gunwale lashings and the corner edges are well rounded from shoulder to shoulder. The distance from the centerlines of these last thwarts at the bow and stern to the extreme ends of the joined gunwales is 33 inches, so the finished gunwale length is 16 feet.
After the endmost thwarts are pegged into place, the temporary stays are removed. At each step of construction the alignment of the gunwales is checked by measuring with the measuring sticks and by sighting, since the shape of the assembled gunwales, in this case of the inner gunwales, is very important in determining the sharpness of the completed canoe and the fairness of its general form.
The assembled gunwales are now ready to be laid on the building bed which, for the Malecite canoe, is 20 feet long, about 3½ feet wide and is raised about 1½ inches at midlength so that the canoe bottom will be straight when the craft is in the water. The gunwale frame having been carefully centered on this bed, with the middle thwart exactly over the highest point in the surface of the bed, some scrap split-planking is laid across the gunwales and the whole weighted down with a few flat stones. Next, 34 stakes from 30 to 50 inches long are prepared, each made of a halved length of sapling. Around the outside of the gunwale frame 26 of these are driven in pairs opposite one another across the frame, about 24 inches apart and placed so that none is opposite a thwart, except for the stakes at the extreme ends of the gunwale frame, which are spaced about a foot from their nearest neighbors and are face-to-face, about 1½ inches apart. All the stakes are driven with the flat face about an inch from the gunwale frame and parallel to its outside edge. Finally two more pairs of stakes are driven at each end, the first pair about a foot beyond the end of the gunwale frame and 1½ inches apart, the second about 6 inches beyond these and similarly spaced. The length between the outermost stakes, measured over the gunwale frame, is about 18½ feet. Great care is taken to line up the last pairs of stakes with the centerline of the gunwale frame.
Figure 34
Second Stage of Canoe Construction: stakes have been removed and laid aside, and the gunwales shown in first stage have been removed from the building bed. The bark cover is laid out on the building bed, and the gunwales are in place upon it, weighted down with stones. (Sketch by Adney.)
If the canoe is to have a slight rocker near the ends and is to be straight over the rest of the bottom, the ends of the gunwale frame will be blocked above the building bed so that the frame is not hogged on the bed.
After the builder is satisfied with the staking, each stake is carefully pulled up and laid to one side, off the bed but near its hole. The weights are then removed from the gunwale frame, which is lifted from the bed and laid aside, and the bed, if disturbed is repaired and re-leveled.
The roll of birch bark is now removed from storage, perhaps in a nearby pool where it has been placed to keep it flexible, and unrolled white side up on the building bed. As the bark dries, it will become more and more stiff, so it will be necessary to moisten it frequently during construction to maintain its flexibility.