On 31/08/10 09:35, Eric wrote:
> My brother-in-law served on the USS Barbel (SS-580), one of the last two diesel-electric subs in the US Navy. Both diesel boats have been decommisioned since he got out over 20 years ago. And realistically, the nukes aren't very different, they just use a nuclear generator instead of a diesel powered one.
>
>
Except the Nuke plant doesn't need to breath like the diesel, so they
can stay down deep and not have to come up to breath.
> We could do the same on our projects, but I think that we're hitting the scale issue again... ;)
>
I don't think most of our boats are large enough. My boat didn't even
have a gear box, the two-stoke petrol engine was connected directly to
the prop. It's going to be a bit hard to increase the transmission
efficiency of a steel rod!.
(And it still doesn't have a gear box or reduction gear, it runs quite
happily now with a permanent magnet motor bolted straight to the prop
shaft).
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