Saturday, November 27, 2010

Number One Hull Strakes...

It seems that this stage has been a long time in coming.  I am finally putting together the pieces that make up the hull.


The number 1 strakes, port and starboard are the closest to the centerline of the boat.  Here they are being fitted to the keel trunk.  There is a rebate cut on what will be the outside of the boat to fit the flange at the bottom of the keel trunk.


The port and starboard #1 strakes on the bench to dry fit the puzzle joints before gluing. This is the outside surface of the strakes with rebates cut around the perimeter.  There will be an extra layer of fiberglass tape to reinforce the joints where the panels meet and the rebates take up the extra thickness of the fiberglass at these joints.


The port and starboard #1 strakes on the building jig for a dry fit.  Fiberglass cloth and epoxy resin will be applied to these surfaces next. 


The puzzle joints have been glued and the panels are ready for a layer of fiberglass on the inside surfaces.


A bit of a bump along the way.  A bearing in the motor of my very old table saw seized up.


Here 10 oz. fiberglass cloth is being draped over the port and starboard #1 hull strakes.  Underneath the roll of 10 oz. cloth on the wall rack is a roll of 6 oz. cloth that will be applied to both sides of the bulkheads and other interior parts.  A layer of plastic over both rolls keeps most of the dust off.



A box with a 40 watt light bulb inside covers the epoxy resin and hardener.  The light generates enough heat to make pumping easier.  Each part of hardener needs five parts of resin to cure properly.


 I use a kitchen scale to measure the correct proportions of resin and hardener.




Hull strake #1 port with cloth and one coat of epoxy applied with a roller.  Another coat of epoxy is applied later in the same day to cover the weave in the cloth.


The second coat of epoxy has been applied.  When it is cured there will be a "blush" on the epoxy that will be removed with a water scrub before sanding.









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