Mark,
Per our phone converstation the other night (sorry i didn't post this earlier). And I did recheck what Batfish is currently moored in and it is called a "graving" mooring and what that is for is when a very large ship is being built or sadly in some cases being dismantled. This type of mooring requires little if any mooring lines and if for some reason it floods she hopefully will refloat herself like the Cavalla did during Hurricane Ike which sadly exposed some pretty bad rotted steel and it also opened up a different look for the museum. You may want to look at the Cavalla web page because it does discuss what was needed to clean the bow and stern tubes and preserve them once they were uncovered
Recommendations for digging/releveling the Batfish which currently is leaning 1.5 degrees to port: a few issues that were brought up that you and I also discussed are:
What happens once the boat starts to list to Starboard and can you stop it once it starts?
As we discussed over the phone, I would NOT use the cleats topside due to them not being attached to the "people tank" and only attached to the superstructure that is in who knows what kind of shape at the cleats.
With that being said, I did call a shipmate of mine and asked him what he would do and a very good solution is believe it or not a simple one: they have been called out riggers or blocks that are welded to the hull to keep her from listing either way once she gets to moving.
Now to get her to try to change her list is first and foremost is dig out the stern planes completely and then contact a Civil Engineer and a Mechanical Engineer and have them come out and design a concrete pads with a very large pad eyes so that you can run cabling through both the forward and aft bullnoses (on the port and starboard sides) and again using the idea of using heavy equipment you could use those with some block and tackle to double the capacity of the pulling power of the equipment and still be safe. And again as we discussed on the phone you may want to have them look at doing spring lines also and you can find the diagram in the mooring plan at
www.hnsa.orgAnother thought is to also think about relocating your buried shore power connection at this point so that it won't be exposed to the elements (if desired)