Yup, and this one was mine most of the time. That big thing under the cover on the stern was our LP compressor. Our HP's were only 10% of the LP's size and portable except for the one under the canvis cover in the forward. well.cfelliot:I assume this is the ladder entry you are writing about
http://www.scubaboard.com/gallery/showphoto.php/photo/8938/cat/500/ppuser/2714
Under the deck were three monster HP submarine air tanks that held about a bizillion cubic feet of HP air. Between them we managed to have a engine.

More than once we were full to the exhaust with water and that is tough going. A couple of times I cheated and had the deck crew put a small cut in the legs so I could get up.
For those that like to complain about that charter boat ladder just keep these images in the back of your mind. The worst you pay for is about the best we got.
I still miss those days.
Gary D.