These are concept drawings of a PSUB designed for cruising moderate 
distances under and above water.

One criteria is to have a vehicle that can fit in a standard tallbody 
cargo container (8 foot 6 inches high, 7 foot wide, 35 foot long with 
rudders folded flat) so that it can be moved via regular truck, rail, 
or ship transport.

Incidentally, it would be able to transit the U.K. narrowboat canal 
system (not a design consideration, just a side benefit.)

Another criteria is that I be able to take it to Catalina Island from 
San Diego (a distance of about 80 nautical miles,) enjoy the weekend 
there, and then take it back. The more of that distance that could be 
done under water the better.

There is standing room in three sections of the vessel--the pilot area, 
the galley/cabin, and the diver lockout. The diver lockout has hatches 
both above and below. The pilot station has a hatch above. There should 
be enough room in the vessel for comfortable accommodations for many 
hours of transit, including a small galley and a seating/table area 
that can fold down into bunks.

The boat is intended to be diesel-electric and have a 'wet' electric 
motor driving the propeller in the rear. The diesel engine and 
generator are located forward of the pilot station. Batteries reside 
under the deck to lower the center of gravity and provide fixed 
ballast.

This design obviously requires a lot more work but it is the basic 
configuration of the pressure hull and fairing that I wanted to work 
out first...

Chuck