Re: FT-Subs?

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On Sun, 29 Jul 2001, Bif Smith wrote:

> > Bif Smith wrote:
> > active does not detect a sub within 12 in the forward arc [I do not
know
> why,
> > just that for some historical and technical reason, subs fell off
the
> scope
> > during attack runs in WWII].

I'm guessing here, but this could be due to the technical limitations
that
one cannot 'listen' during 'transmit' times. Therefore, one is blind for
the first biot of range equivalant to the length of the transmit pulse.
Furthermore, switchover time is required to go from transmit to listen,
adding further blind time and therefore range.

I could well be wrong, this is just the most obvious possibility that
comes to mind.

Cheers,

   Derk
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