On Tue, 17 May 2005, Dr Ivan D. Reid wrote:

On 17 May 2005 07:12:57 -0700, Boltar
wrote in . com:
Well, I don't think the buses will actually stop working - its just
that
we might not know when they are coming any more.

True in this case. But what about the new trains on Southern that have
to get a GPS signal or they chuck a wobbly, aircraft navigation systems
etc.

I thought (civilian) aircraft were not authorised to use GPS for
navigation.

To use it, or to depend on it?

Has that changed?

Not that i'm aware - i think that's one of the reasons for Galileo, which
will allow things like automatic landings. Once it's operational, i'm off
flying for good.

tom

--
It's amazing how often conversations with you have the imaginary sound of human bones being crushed to rubble in the background. -- itchyfidget, to snowking