NavList:

   

Reply

On May 8, 12:26�pm, Lu Abel  wrote:
> I hope, for many reasons, that the EU solves its difficulties with
> creating the Galileo system. � But as yet another space-based
> positioning system transmitting on the same frequencies as GPS, if
> nature (as opposed to a political act) takes GPS down, it will also take
> down Galileo.
>

I think the greater risk is the political act, but you are right
there.  The trouble is that some sort of ionic burst/solar flare from
the sun that would lay to waste the GPS system would probably cause
massive radio blackouts throughout the radio spectrum.  This would
cripple any land based radio navigation as well.

While we sailors can utilize sextants for the ocean voyages and radar/
visual bearings for pilotage, I really wonder what airlines would do
to navigate long distances since, unless I am seriously mistaken,
radio-based navigation is essentially all airplanes use to navigate
from place to place.

Jeremy
--~--~---------~--~----~------------~-------~--~----~
Navigation List archive: www.fer3.com/arc
To post, email NavList@fer3.com
To , email NavList-@fer3.com
-~----------~----~----~----~------~----~------~--~---

   

Reply