Re: Need some good eyes for TNA document handwriting

In message <474ddac4$0$27061$470ef3ce@xxxxxxxxxxx>
"T.M. Sommers" <tms@xxxxxx> wrote:

Graeme Wall wrote:
In message <474d6b0f$0$27015$470ef3ce@xxxxxxxxxxx>
"T.M. Sommers" <tms@xxxxxx> wrote:
Graeme Wall wrote:
In message <474d4b71$0$27000$470ef3ce@xxxxxxxxxxx>
"T.M. Sommers" <tms@xxxxxx> wrote:

As I said, sonar (or the receiving end of it).

More or less. 1918 was the very early days of the technolgy, it was all
passive

The only time the ship I was on used active sonar was in foreign
ports, to keep divers away.

What ship was that?

USS Truxtun, CGN-35.

I see she got uprated from frigate (DLGN) to cruiser. I've been on a few USN
ships but not her.


Use of active sonar in peacetime is deprecated because
of the adverse effect on marine life.

Use of active sonar in wartime is deprecated because it announces
your position to enemy submarines. For a substantial part of our
cruise we were in Condition 3 anyway (wartime crusing), so if we
had had such a rule back then, it probably would have been suspended.


In wartime conditions I suspect the feelings of the marine population are
ignored. The rule is fairly new as I understand it as its only recently
that research has shown the effect it has on whales and dolphins.

--
Graeme Wall

My genealogy website <www.greywall.demon.co.uk/geneology>
.

Relevant Pages