On Sat, 29 Jan 2005 09:33:47 -0500, Andrew C. Toppan
wrote:

On Sat, 29 Jan 2005 00:16:14 -0500, wrote:

Whoever wrote what you replied to is an idiot. Diesel subs are noisy only while
surfaced to recharge batteries but once submerged are extremely difficult to
detect.

I seem to recall that they are rather loud when snorting, too.

"surfaced to recharge" and "snorting" are pretty much the same thing
in terms of noise - the diesel is running.

Actually, they are not. One is dramatically more noisy than the
other.

Once you turn off the
diesel, they can be very, very quiet indeed.

Yup. And they are also slow and working against the clock.

Bill Kambic