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Hi
Frank,
Nice drawing of the stern
section. What about having a small diesel or gas generator in a external
pod attached low, to the stern or designed to be inside the stern section with a
fuel bladder also in the stern section. Then have a larger electric motor in the
stern that is optimized to the generators output. This way you don't have to
detach your motor to submerge, making you more autonomous. The generator pod
would have a snorkel system to help keep water out of the intake if you get
nailed by a wave or two. The other option I've been working on is a Honda
outboard motor having it's upper engine area encased in a pressure pod and
finding the right seals to keep water from coming past the vertical drive shaft
when submerged. That option would allow an easy bolt on power source that could
be attached to most any previously all electric PSUBs out there. As for the
intake and exhaust, they can be opened and closed manually while on the surface,
or with a pneumatic or other type of remotely operated valve. This makes for a
quiet ride in you sub, since the engine is not inside the main pressure hull,
not to mention safer to boot.
Regards,
Brent
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