Bill,
"Now imagine.....you ENCLOSED those tanks so their bottoms were enclosed and then you put a water inlet on/off valve at the top of both tanks on the INSIDE of the sub. Now you'd have a Kittridge sub that had ambient tanks that as they filled they compressed the interior atmosphere of your sub"
This is an interesting idea worth investigating. I wonder though, about a disparity in volumes between the tanks and interior as well as rate of air flow and how everything ties together.
Thanks
Joe