This will facilitate clamping during construction. Initial Assembly Be as accurate as you can during assembly. It will also save you considerable sanding. Identify the stringers by comparing the cross section profile with the cross sections on the full scale plan of the bulkheads. The stringers must be strongly but temporarily fastened to prevent movement of the finished frame when bending the ends in to meet the front and rear template.
Screws are ideal for the center stringer.
The fasteners in the centre top stringer should be screwed in from the inside face of the strongback so that they may be removed after the float has the side and bottom panels in place. E. Except for frame A, epoxy each frame in place checking with a square to ensure each frame is perpendicular to the strongback and top stringers and square with the float centre line. Epoxy the bottom corner stringer and centre stringers to frames D, E, F, G, H, and I. Use wire or clamps as necessary to hold the stringers to frames while epoxy cures. While leaving the top stringers firmly anchored to the strongback at frame B, temporarily shim the stringers inch above the strongback at frame A location. This is how the slight droop of the float bow is created.