Now you have me looking... http://www.pearsonariel.org/discussi...604-keel-voids

Pic Bill (A231) posted. Holes I drilled are just a smidge fwd and a bit below of the tip of the arrow indicating the keel void. I can't tell you exactly, but I'd guess the bottom of that void is about 5" above the bottom of the keel - solid fiberglass below. You can eyeball it - that fitting is 3 1/8" in diameter, and the bottom of the 1 1/2" hole I drilled is at the very bottom of the void...

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