[PUP] Diesel electric

[L. Bruce Jones]

I've been building diesel electric submarines for 15 years now. For 
our applications we typically use direct drive diesels with shunt 
wound motor generators attached to the drive system so that we can 
charge batteries while underway on the surface and then proceed under 
battery power when submerged.

The arrangement is sensible, robust and reliable and for submarines, 
we have no cost effective alternatives.

I don't believe that there are any advantages to a diesel electric 
system installed in surface vessels less than 500 tons. For that 
application they are overly complex and certainly not cost effective.

In my view, twin appropriately sized engines with a single shaft 
cannot be beat for redundance, power flexibility, efficiency and 
safety. A large shaft coupled generator and large battery bank can be 
used to significant advantage for long periods of power, including 
air conditioning, without having to revert to running a generator.
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L. Bruce Jones 		                U.S. SUBMARINES, INC.
President 				POSEIDON UNDERSEA RESORTS LLC
Tel: 208/687-9057                       Fax: 208/441-7478
E-mail: bruce at ussubmarines.com          http://ussubs.com
					http://poseidonresorts.com

"Design, engineering and construction of submarines and submersibles"
         "Developing the world's first sea floor resort."
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