wrote in message
...
On Fri, 27 Sep 2013 12:06:22 -0400, " Sir Gregory Hall, Esq·"
åke wrote this crap:

Just curious, how did it take the nuke to go from slow to go?
However, he could have powering up the reactor as he was leaving the
channel and then just powered up the engines when he got clear
sailing. At nuclear electrical power plants it takes days to get to
full power.

Been powering up the reactors for a day probably. They'd never say.
Just switched the power to the engines when he turned.
The N-subs do the same thing, but no rooster tail. They
just go hell for leather so any dickhead on a surfboard
or in a canoe etc who wants to "stop" one for a
photo-shoot has to deal with something that's already doing
20knots "Sorry, couldn't stop in time.

It's my understanding that nuclear subs are powered by steam
turbines which generate electricity for the electric motors that
run the propellers.

That's correct.

The steam for the turbines comes from the
heat of the fission reactor. Lower a few more fuel rods and it
doesn't take but a few minutes for the core to heat up and the
cooling water temperature rises along with it.

That's not correct. The control rods absorb the radiation. You pull
out the control rods to increase the power. Lowering the control rods
shuts off the reactor.

Right. I should have said control rods instead of fuel rods
because the fuel is actually pellets.

This explains it pretty well.

http://www.fas.org/man/dod-101/sys/s...g/reactor.html


--
Sir Gregory