The position of the thwarts in each boat is different. My boat will primarily be rowed as a fixed seat double. A secondary setup will include the addition of a Row Wing sliding seat rigger. I have changed the layout of the seating from the drawings by moving the thwarts to stations #3 and #5. This will improve the balance of the boat for both my rowing setups. Don’s boat is being rigged for sailing so the thwarts are positioned as the designer drew them for the sailing version.
We installed the thwarts by first cutting the ends to match the bevels where they met the planking. Temporary screws driven from the outside of the hull held the thwarts in position while we fitted the seat cleats. The cleats were then glued in place, also using temporary screws through the planking. The final step was to scribe and trim the ends leaving an 1/8” gap before screwing them into the cleats.