When you cut the hole for a 5” inspection cover you will have to cut some of the wood and also the foam.? I used a jig saw to get a nice circle and a keyhole saw on the foam.? The mounting hardwre for the new style spring loaded ?tip up
rudder has a nice heavy aluminum gudgeon plate.? With that plate properly thru bolted the rudder mounting is very, very strong….far better than the original kick up design.? I had to do a bit of trimming on the gudgeon plate and careful marking for the holes
but it is very strong.
From: Steve King Sent: Wednesday, July 8, 2020 2:36 PM To: [email protected] Subject: Re: [SunfishSailor] Help with pre-1972 rudder mount
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I think the dotted lines suggest the placement of the closed cell foam blocks that provide both structural rigidity for the hull as well as flotation should the hull become filled with water. I have put inspection ports in the stern of
a couple of Sunfish. I found the foam block placement to be a little different on each hull. I had to remove some of the center-line foam block in both cases in order to have access to the transom, where I needed to add a backing block for the rudder gudgeons.
The boat will not suffer for the loss of a part of that foam block. I used a key-hole saw to remove a little bit at a time until I could see my work area.?