I got some 25mm square batons and placed them inside the gunwales and secured them with screws. This took care of the longitudinal rigidity. A thwart across the width further improved stiffness. I also repositioned the seat and footrests based on what I learnt from the previous outing.
The next challenge was to negate the rocker along the keel line to improve tracking. I was surprised by the amount of rocker on a boat which is primarily designed to perform well in a straight line, it is almost banana shaped!
It was clear that I could not take it all out along the entire keel line without significant redesign.
I decided to concentrate on changes which should have the biggest impact. In this case it would be the bow and stern.
I took two lengths of timber and cut them to the shape of the hull. These I secured with “no-more-nails”. I then cut them to the straightest line achievable from stern to bow. I ignored the centre part of the hull and it still has a slight rounding.
A further piece of plywood closed the gap in the shape of the bow and then it was ready for about two tons of filler!
I eventually built up the shape of the bow.
And the stern.
It’s not pretty, but I’m hoping that it will be effective.
There’s only one way to find out……………