Kirt,



The earlier glass boats also had front ports.



From memory:-

The front ports if installed according to plan are centred 340mm back from the main beam and 145mm in from the inside gunwale. Just right so you can get you hand (up to and including elbow) in to do up the beam bolts.



The fact the section forward does not get air blown through has always concernd me and at one stage I was even looking at building in a breather pipe from the front port that I could blow air through. I finally decided I was being paranoid and dropped the idea.



Phill