Boarding Ladder Reinforcing and Backing Plates
I noticed some flexing of the transom as I would board the boat using the transom mounted ladder. I replaced the original plywood backing plates with 3/16" thick stainless and used acorn nuts to help prevent snagging of items placed in the lazarette locker. I also added some fiberglass to stiffen the transom where the ladder is mounted. I laid on a couple of layers of biaxial cloth, then added 2 foam forms (cut from 1" pink foam insulation with a razor knife) over which I added 4 more layers to create some vertical stringers to further stiffen the transom. I also added a layer of mat in between the 1st and second layer of biaxial to thicken the lay up a bit in the areas of the backing plates. The layers of biaxial taper away at the edges so there is no distinct shift to the thicker sections.
Parts Used 1/4-20 bolts
1/4-20 acorn nuts
3/16" 3" wide stainless plates
Boat Life Sealer Caulk (polysulfide)
Ladder backing plates
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