Gentlemen and I use that term looosely
The COD had a diver do a hull survey and record his findings, it is on youtube somewhere... seeing how Batfish is setting in sand and mud that means that the stern planes will most certainly be soaked and rotting, when you uncover them you will need to start preserving them immediatly. Also look at the Drum as her's are still on and well documented and if you can find it you can see the Torsk's when she went into the shipyard a year or so ago