I was stationed on a Coast Guard cutter in the early 70's that was a recycled,110' Naval tug that utilized diesel electric for propulsion. It was built in 1942.
Thanks for the response, I just wanted to clarify that this is a "revisited" technology, as a matter of fact this technology was "borrowed" from diesel electric locomotives and utilized the same V-8 GMC engines.
One of the more important aspects of this technology is that the electric motor allowed very quick response from forward to reverse. A very useful tool in ice breaking and docking.
High-efficiency electric motors have been incorporated into electric outboards for a number of years. Try Minn-Kota for examples (usual disclaimer). The smallest is available for around £150GBP including local taxes.
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Yes. Some, anyway. Hence the name "Electric Boat Yard" for the yard in Groton, Connecticut, which used to build submarines, which were ... wait for it ..... Electric Boats
As in diesel-electric, like the train power plants, just as mentioned above, by Tomqwest.
Others, nuclear powered, were called by those of us in the Navy, Nuke-Boats (or other things, best not mentioned here). I never sailed on either, but know plenty about them, from my time in the navy, much of which I spent trying to get a cruise on one. A well, different rate, few billets, no opportunities.
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Been away a while. Miss all my old friends. Some of you I KNOW are still around. Where are the rest?