As per request from other forum members here it is.
I have no way to know if all the files in this "open hatch mod" were the ones released by the above authors but it appears to work fine. I
This mod represents the work performed by (amongst others) DivingDuck in SHIII and Xantrokoles who converted the mod from diving ducks original SH3 for the type 9 boat. Both to which I give thanks! Other contributors and the mod's history are contained in PDFs that I have printed out of various forum threads discussing this mod and included in this file.
I have put this up for download at the request of members to this forum and I take no credit for any part of it. I also cannot support this as again, at least 2 other geniuses were the authors of it.
Just unzip the file and place the resulting "OpenHatchModv1" folder into the MODS directory and enable with JSGME.
If you want to see what it looks like, you can click on the link below: