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View Full Version : productive afternoon yesterday- mystery solved



DanSkorupka
05-28-2012, 10:51 AM
The ugly phoenix (my first boat build and the first large scale woodworking project of my adult life) leaks like a sieve and I figured out why. When we got back from an especially bad trip I realized the external chine had pulled itself away from the sides or rather the sides had sucked themselves in.

Noone could figure out what the <beep> had gone wrong, after all the sides were brought together from straight with a spanish windlass like most small skiffs, if anything the wood should be pushing out too hard, not pulling itself in by over 1/8 inch in places. It defied logic.

Yesterday I solved the mystery. I remembered I had removed the upper section of the midship frame far too early in the build (weston farmer shorebird, sort of a narrow brockway type with lower freeboard) but after I had already installed the chines. What happened was the floor of the boat was held to nearly its proper width while the top of the sides came too close together reducing the flare. This put a strong inward pull on the top of the chines which I had not used enough fasteners on.

It looked ok when it was in the garage waiting for water. After being on a badly fitted trailer full of hundreds of pounds of rainwater the nails proved too weak and the sides sucked inwards.

Yesterday afternoon I cut out the old caulk, added exterior silicone caulk to the gap, forced the tops of the sides apart with a couple thick pieces of wood, put screws in to better bind the chines, put permanently flexible acrylic-latex caulk in the inside gap that was widened by forcing the sides apart, replaced the now too short seat with one that fit and was stronger, located very near where the original midship frame was, and finally put some caulk into a large void I found in the plywood.

Will take it out soon, it is very fast for its power and does this with a mere minn kota 30 despite having substantial aft rocker. It is the skiff that hull speed forgot and is pretty hefty 14 footer with 3/4" oak bottom and 1/2" yellow pine sides.
http://farm8.staticflickr.com/7185/7097245149_707e4e279a.jpg (http://www.flickr.com/photos/dskorupka/7097245149/)
wake at full throttle (http://www.flickr.com/photos/dskorupka/7097245149/) by Dan Skorupka (http://www.flickr.com/people/dskorupka/), on Flickr

Next will try my aircooled 5 horse and there will be pics.