After installing the thwarts we found there was quite a bit of flex in the plywood, probably due to the fact they were only screwed, not glued. To solve the problem we added some additional braces to the sides of the hull. That seems to have solved the problem. I’m sure if the thwarts were epoxied in place that would be the strongest, however, we would like to be able to remove them for refinishing or to replace them with solid wood in the future.
We’ll be able to pack up the sanders after today. The interior got its final sanding before painting. Four coats, four days and after that the gunnels, thwarts and stems get a bright finish of of Sikkens Natural. The floorboards, cox seat and tiller have all been done.
Because our boat will be launched from different sites around the area we needed a way of securing the oars during transportation. We made two brackets that will straddle the thwarts and clamp the oars in place.