Tom Pike, who owns an ENIGMA with a cabin, suggested to me that it might be helpful to others if I described how I repaired the hole in my tiny little micro-cruiser. Therefore, I took a lot of pictures and made a webpage to document the process. In retrospect I don't think the restoration was particularly difficult, but it took longer than I expected it would to fabricate a tight fitting wood patch. Fortunately, both Matt Layden and Jacques Mertens from E-boat in Vero Beach provided me with plenty of marine plywood scraps so it didn't cost me anything to make a few extras until I got it just right.
To begin with here is a picture of the grey boat that hit poor ENIGMA. To be honest, I never thought that a rowing shell
could do so much damage; but when you consider it is 40 feet long by
16.5 inches wide and was powdered by 4 strong teenage boys, then it's
basically a 700 pound carbon fiber spear.
The first thing I did was cut away all the delaminated wood. I guess I could have removed even more material for a cleaner opening in the end, but I was a little concerned about losing the curvature of the side if I took too much away.
the epoxy cured I ground the edges of the patch level with the
surrounding outside surface, and I sanded the patch slightly concave to
make room for the upcoming fiberglass cloth covering. If I had to
do it again I probably would undersized the perimeter of the patch a bit
more so that it would naturally have sat deeper from the very
I glassed the outside with 3 layers of tight weave 3.25 oz glass, and I finished it
off with a thin layer of microballons mixed with epoxy. Since Matt used 2 layers
of this style of cloth in the original construction, I figured the extra layer
of glass would give me something to sand into later on when I was
making everything smooth.