10th post start of all those keels

OK we have the bottom and it is flat at the aft with the transom in place.
The transom is 400mm tall x the width of the ply sheet x 12mm deep at this point.
So at the fore there is a "V" shape in the ply where it was cut at a curve and brought together and then wired and glued.
we now need a bit of 12mm ply cut to the natural shape of the "V" that has formed.
At this point I turned the floor upside down and chocked up the front so that a level could be placed on the flat section of the bottom and then worked out the depth of the "v" shaped section, this being the top of the "V" to the same level on the bench as the 400mm transom.
I then gave the 2 sides of this section a nice (what I though) angle down to the bench.
Cut it all out then glued and screwed it into place also giving it an angle sloping forward to just short of the length of a standard sheet of ply 2400mm (about 130mm forward) (working on the fact that I had removed 150mm from the bottom after lofting the lines for the "V" section cuts).
OH NO A WART...As you can see the next day (to my surprise ) I had used the first draft of the bow not the real 1 so I was 150mm short of the expected size.
So (in the long run it worked out as a good mistake) see later.
OK the "V" section is 300mm either side of the center line of the boat, Center is where the main keel will go, so mark the center line (chalk line or long ruler ) and the mark the 2 lines either side 250mm of the center line (about 50mm in from edge of the "V" where the sides will meet in the long run..
then starting at the rear (aft, transom) mark a set of drill points 100mm apart aft to fore.
now the sections of Maranti, I am useing are 25 by 50mm. so after you have all the holes drilled run some glasspaper under the ply and tidy up any breakthrough splinters in the ply.then glue and screw the two keels onto the bottom of the bottom.
Dam blog will not load photos back tomorrow to edit this post.