Patch curing
I cut the rot out, then made the hole rectangular. The patch is made of 3/8" plywood. It extends about an inch down between the chine guards (had to hammer it in place) and it has thickened epoxy all around. A larger back block made from 1/4" wood is inside the boat, and this patch is currently screwed to it. After everything cures, I will remove the screws and fill the holes with epoxy.
Patch curing
I cut the rot out, then made the hole rectangular. The patch is made of 3/8" plywood. It extends about an inch down between the chine guards (had to hammer it in place) and it has thickened epoxy all around. A larger back block made from 1/4" wood is inside the boat, and this patch is currently screwed to it. After everything cures, I will remove the screws and fill the holes with epoxy.