We continue our work on MOUSE, the little gunter yawl project…
Following the rough drawing shown in Part 1, we fashioned a centerboard from 3/4” marine mahogany plywood, feathering the edges, encasing in fiberglass cloth with carbon-fiber tape on edges, and inserting two 3/4”-thick plates of lead, to prevent the CB from floating up when lowered. (We were guessing at how much lead, and the 7-1/2 lbs. was enough to achieve neutral buoyancy, but not enough to guarantee total submersion. Fortunately, control lines helped us keep the board wherever we wanted it—up, down or somewhere in-between.)
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