Rick,

It may take a couple of days before I can get time to hunt it down, but I have a fair amount of info on the Hunley in some of my civil war books at home. Just relying on my (often faulty) memory, I think the Hunley was actually the second confederate sub. The first, designed by the Hunley the second one was named after, sank in trials with the designer on board. Also, my recollection is that both "boats" were made from converted locomotive or industrial boilers. I'm sure I have some sketches of the plans in one of the books. I'll see what I can dig out.

david