The Naiad Voyages

Mark Austen

2016.04.23 - Six Half Ribs

Two things have gotten in the way of work on the boat this last week, hay and heat. We've been trying to get the hay cut, tired and baled while the weather is warm and dry with a moderate degree of success but the main reason for not much work is the heat. The epoxy goes off in the mixing pot. It was fortunate that the epoxy I was using ran out and I could start the new can but this time one with the slow hardener. It still sets quite quickly but it is useable provided that you do not try it in the heat of the day.

I almost did not get the new epoxy at all as you can see from this photo. The can was not particularly well packaged. Fortunately, it did not burst.


The cross line laser came in handy for the next part of the forepeak work. I clamped it here below the bridge deck.


It was aimed at the forward bulkhead as you can see here.


Then it was raised so that the laser just cleared the top of the bulkhead and shone on the hull forward.


The line was marked with a pencil and that is where the top of the bunks and stowage will be.


All the way to the stem, more or less.


You can just see the line where is clears the bulkhead.


Here the paint has been removed where the half-ribs will be placed.


And similarly the starboard side.


The ribs veneers cut and drilled awaiting the temperature to go down a bit before being laminated.


These ribs will be screwed to the hull temporarily with long screws through the hull and ribs and into the blocks you can see here.


The screws and block clamp the laminates to the hull while the epoxy cures. You'll notice that the ribs are not vertical. This is because the ribs are just for fixing and not structural so I've followed the curve of the hull rather than shaping the ribs individually to lie flush with the hull in the vertical position.


Tomorrow, the screws will be removed, the ribs tidied up and then the six ribs will be epoxied to the hull using the screws and blocks again. When the epoxy has set the screws will be removed and the holes filled with thickened epoxy.