WWII subs didn't have steam boilers & steam driven turbine generators. They were all electric. Now instead of duplicating and/or additional equipment inside the tight and $$$ subs. With a separate prop steam turbine, a separate electrical generator, duplicate condensers, pipework etc. and a massive drive shaft. Less noise too without a gear box and turbine on the end of the prop shaft. Now the sub runs just one overall smaller/lighter steam turbine/electrical generator. That doesn't have to be mounted in a straight line with the prop(s). Electric bow thrusters will allow a sub to turn quickly on it's axis . Instead of ploughing in a circle over thousands of yards. Just the ticket for those tense moments. Some cruise ships run electric drives as well. The main engines/generators still run at rated power. The ship just slows down some as the "hotel load" rises when all the ladies are using hair dryers. And the kitchen is cooking before supper. The electric props also allow the props to be steered/pivoted. Which allows easier docking of these huge ships, in small ports without $$$ tugs. The aircraft carriers are going to electric aircraft launching for similar reasons.
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Today's Featured Article - Gatherin of the Orange - by Rick Nikolich. In July of 1998 I was talking to fellow Allis Chalmers collector Mike Schilling about the annual "Gathering of The Orange" AC show coming up in August of 1999. He got this wild idea that we should get a convoy of AC tractors and drive them from Charlotte, Michigan 105 miles to LaGrange, Indiana.
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