Thank you Groot for the information, that is very helpful.
The engine room was beneath the stack, which from studying the side scan image and doing some rough measurements, it looks as though the stern broke off right in the area of the stack
As far as the citadel, I imagine most of the interior bulkheads were not damaged in the attacks, while the outer sections were compromised. This flooding would have caused the list, so the crew probably counter flooded to try to stabilize the ship. When the ship capsized and went down, at around 100 feet or so the citadel probably imploded which would be the reason for the incredible devastation of that area. The Yamato and Musashi didn't have a 8 or 16" hull. They had 1" hull with 16" armor plates attached. When it comes to implosion, it's the 1 inch hull and the girders behind them that is providing the resistance, not the 16" armor plates affixed to them.
Anyway, here's tonight's work.
I added some thicker metal to the sections where one would see the thickness of the armor. I hope it makes a difference. Anyway, I believe I'm finished with the stern. I'm not concerned about the non smoothness. The wreck will be covered with silt, some sea life, rust and a greenish color.
Some pics of the actual wreck.
Bow and starboard anchor. Notice the cable above the anchor and below the Chrysanthemum which was used for degaussing.
Bow with the deteriorated Chrysanthemum.
Bow deck with starboard anchor chain. Again, notice the degaussing cable just to the left of "Musashi Expedition"..
Here is my completed stern. The sea floor will be filled up to and bury some of the hull.
And the screws and bent main rudder. The outer port screw has a broken shaft.
The actual ship.
That's all for now. I will start on the bow tomorrow.
Steve