My uncle is retired and lives most of the time on a small coastal village. So he bought a small boat (7-8 meters long) a few years ago and is enjoying it. Since we are in the acrylic products business, he asked me to make an acrylic window on the bottom of his boat. It's not impossible with a 15-20mm thick clear acrylic piece with the dimensions of about 1x1 m, but I don't know anything about boat construction, yet common sense tells me that the acrylic won't be able to withstand the weight and pressure. And then there's the problem of impermeability. What's your thought on this subject? Is it even remotely possible?