I was thinking looking at this that I poured the leading edge epoxy goop to high, and thus too wide. Being ever the optimist I thought that maybe it would just be a different shape than the other rudder and gave a couple moments thought to the sailing implications of having two rudders of differing sections. Thankfully I didn't spent too long on that, and decided to pull it off the jig before investing carbon fiber into it. The creaking sound I heard was the sound 4mm Okume marine plywood makes when it cracks.
Doing a post-mortem on this, the proximate cause is obvious (too much epoxy goop bead), but the real culprit is overconfidence and haste. When I poured the bead in the rudder I only had a bit of time and did things quickly since I figured I had this down.
So after two rudder attempts I'm 1 for 2. Here are the two things I will do differently and why:
1. Mark epoxy goop fill line on rudders with red marker or something significantly more visible than a pencil line. Its too easy to lose sight of the pencil line and start guessing at where it was.
2. Change order of operations: epoxy rudder faces with goop in jig first, then epoxy spar onto one side. With the spar pre-installed it is just in the way just enough to be a pain when putting the goop (contributes to losing sight of the fill line).
We have company in from out of town for Halloween, did I mention this holiday is a big deal, so now it really will be a week until I'm back at work on my boat.
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