Time to trim the new keel on the Super Sailfish and fit the latch plate, the bronze plate for the rudder assembly that is on the keel. The important measurement is the distance from the deck plate to the keel plate, we took that off of our wooden Sunfish, which uses the same assembly and has the same size transom.
Brought the measurement over to the SUper Sailfish transom and marked the keel strip.
Marked how far up the keel strip to cut, and how deep.
Scribed the cut with a Japanese pull saw then cut with a multi oscillating tool. Smoothed the cut and trimmed to final shape with a 1 inch long handle chisel. The latch plate is secured at the forward end with a #8 silicone bronze screw that goes through the keel strip and into the internal keel longeron. The aft part of the latch plate is secured with a carriage bolt that goes through the latch plate, up through the transom and then through the spring plate on the deck. A wing nut tops off the carriage bolt.
Well the boat is upside down but you get the idea. Wing nut tightens or loosens to control pressure on the latch plate, if an obstruction is hit the vertical plate of the rudder pops out of the latch plate because downward pressure is put on the spring plate. Tightening the wing nut tightens the latch plate and makes it harder for the vertical plate to pop out.
Log of ZSA ZSA.
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