Dry atmosphere submersible HPV
by duke, published
This is a one-man submarine that I have designed. It is dry atmosphere which means that you do not need to wear SCUBA gear inside of it. It incorporates a single center ballast tank, twin air tanks for breathing and buoyancy compensation, rudder controls for pitch/yaw, etc. It is propelled by twin contra-rotational, coaxial propellers driven by conventional bicycle pedals.
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Unfortunately I have yet to build a full scale working prototype of this design, the limiting factor being the cost of producing the high pressure polycarbonate shell. I decided on a transparent hull because ferrous materials would interfere with the magnetic guidance system, and cheaper materials such as fiberglass would not withstand the high pressure imposed on a dry atmosphere submersible at any reasonable depth. Also, it would be way cooler if it were clear. I have however built 1/10th scale working models of the drivetrain, and I am very satisfied with it's simple, robust design.