your absolutely right, now as you mention the escape hatches
I've been on cats witch had that ones.
But wouldn't they have much less of a load to bear?
They are mounted usually somewhere amidships on the inside of the hull
and the water
is passing is parallel to the hatch
vs perpendicular on these ones here
You think that load will be lower then a big breaking wave from stern?
But then, if i remember right from my thermodynamics classes
is making a lot of pressure even if running parallel, hmmmm....
ahh, the molds, i think the hatch
flanges are there already as i have seen a picture of the hull
coming out of the mold
with the openings there, damn...
so i guess it will be the best hatch I can find on the market with that dimensions and some silly thick glass
for the door, yeah you are right, was recently on a cat with a huge sliding door, something like in the 6' wide class and no serious cockpit
it wouldn't take much to rip out that door or fill up that hulls in some serious waters