In article ,
wrote:


The submarines from other countries are diesel and noisy and
therefore not all that much of a threat.

Not a bubblehead but the biggest threat today is from Chinese diesels,
runningon battery power, in the Tiawan straights, waiting for a CV..P. C.
ChisholmCDR, USN(ret.)Old Phart Phormer Phantom, Turkey, Viper, Scooter
and
Combat Buckeye Phlyer

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.

The term is "snorkeling," and yes, from a passive acoustical standpoint,
when running their engines, they are just as detectable on the surface
as when snorkeling.



--Mike