Pretty much the last bits of boat to build and install are the two skegs on the bottom of the hull. These provide a stable base for the boat while on the trailer or beach and also are handy handholds to right the boat if capsized.
I looked through my bits of wood laying around and didn't find any solid stock that was inspiring, so I decided to build these from standard ACX plywood. Two thicknesses of 3/4" ply is the right thickness, and as these will be completely fiberglassed I think they will hold up just fine. And if not, I can always replace them with something else.
Working with the sheet plywood means that I won't have to splice parts together, and it should be easier to build parts that are straight. Any voids I find I plan to fill with epoxy.
The first step in the process was a trip to the local newspaper, where I bought an end-roll of newsprint. I unrolled a length and layed out the pattern for the skeg based on dimensions in the plan addendum.
I then perforated the pattern with an ice pick and mallet to transfer the curves to a piece of masonite, which I then cut out with a jigsaw.
I faired the curves with block plane and sandpaper and the result is shown here on the hull:
With the pattern made, I could trace out the four pieces I needed to cut. Another alternative would have been to cut out and finish one piece, and then trace from that.
I used a jigsaw to cut the four pieces to rough shape,
And laminated the two pairs.
I was careful to ensure the glueup was straight. In the foreground you can see a tall bar clamp applying a bit of down pressure, in the middle a stack of plywood cutoffs supports the center, and in the background the tips are under a ladder step to bend them down a touch. I used a 4-foot level as a 'straight' reference before all the clamps were in the way.
Here are the rough glued up parts in approximate location on the hull. I'll next bring the edges down to final dimension, fill a couple voids in the ply with epoxy, rout finger grips in the sides, and round over the edges that are not in contact with the hull.
I'm thinking I will fiberglass these off the boat, since it will be easier to work on them. When they are finished I'd then install them with epoxy and fillet them generously to the hull. I'm thinking right now that I do not need to apply fiberglass tape to those fillets, and that will save time finishing that area.