Fitting middle panels
The middle panels were much easier, with only a small amount of curve to take up. These fit against the keel, into a recess formed by the edge of a piece of plywood. This needed trimming back to accept the panel, and the perfect tool for the job was a Bosch oscillating cutter, placed on a piece of scrap plywood, to trim the edge back enough that the bottom panel could fit underneath. A ¼in chisel and mallet made short work of anything left behind.
This done, we saw that we needed to plane a curve, and marked this by pushing the sheet up to the keel and measuring 15mm in from the edge, later joining these lines with a long, flexible batten and planing to shape. Thereafter, we marked the position of the stringers and drove in temporary screws to hold it in position.
The outside edge overhangs the chine panel at this stage – but this could be planed back to form the new lower edge of the chine panel once the epoxy had set.
...and we finished off with a sanding block the same width as the bottom panel
We used an oscillating saw to trim back the keel and open up the recess
Marking the shape of the keel onto the bottom panels with a steel rule
A sharp 1⁄4in chisel knocked out any waste and lumps from the recess...