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Originally Posted by Deathblow
That's very interesting :hmm: Makes sense. Is that one of the additional reseasons that SSKs on electric power can be quieter than SSNs, not just because of lack of the need for reactor coolant circulation, but because electric moters don't require reduction gears? Or do they? Guess I'll look it up
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As I understand it, electric motors are wound directly on the shaft. thus no need for gears at all. The motors are what turn the screws at all times. The source of the electical power is what varies. Batteries for normal submerged ops and diesels (with the battery floating for a charge) for surface/snorkel ops.