I wonder, how deep attack nuclear sub can dive?

[rolerbe]

After my navy time, I worked on sonar systems, with the guys who did all of the special effects (noises, etc.) for the Hunt for Red October movie.

Chi, thank your father for his service for me (and thank you for living through a fairly difficult family lifestyle)! And of course he's right, they do go faster than that. I've never told anyone, not even my son, any of the specific digits either we 'bubbleheads' are 'funny' that way

Abraham, most naval reactors are water cooled and moderated. It's a two loop system. Primary coolant (pressurized fresh water) runs through a heat exchanger (steam boiler) to make steam on the secondary side which is then used for motive force. There were a few liquid metal reactors as experimental prototypes, but only a few.

 

[Argentum Vulpes]

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Abraham, most naval reactors are water cooled and moderated. It's a two loop system. Primary coolant (pressurized fresh water) runs through a heat exchanger (steam boiler) to make steam on the secondary side which is then used for motive force. There were a few liquid metal reactors as experimental prototypes, but only a few.

I'm 99% sure all US nuclear reactor at sea are of the pressurized water reactor (PWR) type. And you are right we had one reactor at sea for about a year that was cooled by liquid sodium. The S2G was on the USS Seawolf (SSN-575) put to sea April 2 1957. However it was replaced on December 12 1958 because the practical performance of the S2G liquid sodium liquid metal fast reactor (LMFR) never meet the theoretical performance specifications. And a PWR was able to put out similar performance specs without the complexity of the LMFR.