Putting the plug "in" the table to make a half mold.

After the plug is primed and sanded (and primed and sanded ...) I created a table

to drop it into, to create the mold flange. I put the plug on the surface and leveled it
then using a right angle drew the outline. After cutting out the center and making a
close fit I coated the surface with epoxy. Now you can drop (lower gently) the plug in
and level it. To fill the gap I used modeling clay, this may not work for you if you
live in a hot environment. All surfaces have been polished and waxed prior to this point.
But more wax will be need before the PVA is sprayed.

Skinning a Cat (well at least the plug)

The sides of the plug are 4MM ply and the bottom is 3MM that is steamed then bent over the frames and dried. After the moisture is out of the 3MM it is glued and stapled into place.

Attaching Stations to the Strong Back

The stations (frames) are attached to strong back (building table) using a 2X4" screwed to the table at each station. Then the frames are connected using a 5mm plywood that is attached using machine screws.
There is a 3mm wire running down the length of the table and each frame has a 5mm hole in it.
When the wire has a 1mm space around it the frame is centered and can be attached.

This design is an extension of the last design I created
after creating a batch of 18Sq Meter Cats I made for two friends and myself. Those boats where made out of Kevlar with a honeycomb core. They had a high freeboard (22 in) to cut down on the chance of pitchpoll. These boats had masts of between 32 and 36 feet. For this design I decided go with a lower freeboard and a much finer entry, as well as a rounded fore deck. The intension is to build a middle of the "road" boat that will not be targeted for any one condition.

This is to document the build of an A-Cat.