Close, Ralph, but on the later boats they replaced the verticle drive with a Turbo Entabulator.

Here's more info on the Allen Bradley Turbo Entabulator (usually found on diesel boats):

http://www.youtube.com/watch?v=lBp5ag6SJH4

On the nuke boats, of course, they used the Rockwell:

http://www.youtube.com/watch?v=yjXTOlsE8k0

I thought it was a turbo ENCABULATOR, but what the hell.....they came after the nukes......Don't know how many of you are aware of freecycle, but a friend of mine, a disabled USMC forward Recon fellow with a great sense of humor posted a Turbo Encabulator on the board!..  His description of it was a riot.  And when I got in touch with him, he said he bet a guy that if he posted anything that sounded as if were of value, the cockroachs would come out of the walls for it.  He was right....Somewhere I have his original freecycle post....and everynow and then one of us will post something having to do with a turbo encabulator......that is a gift that keeps on giving.....

My niece's father-in-law, a boomer chief, teaches technology in the Seattle area and loves the you tube.....Damn, don't cha just love technology and what a know-nothing salesman can do with it?  Explains the resident of the whit....whooops.....wrong forum....belay my last.