jrassier

While I was reading Robb's " How to build a tin canoe" he described a long streak of aerated water visible astern of the dingy he was towing.The dagger board slot of his design developed a venturi effect that pulled air down the slot. Anyone out there with knowledge on the construction details of this stroke of genius ? I'm shaping my dagger board for a Spindrift 12. Next step will be the nerve wracking hole for the DB trunk Jim

Very nice work! Are the ribs steam bent or laminated? They look to be 3/8" x 1"