Unknown plane escorted over West Kent - Jets scrambled
Discussion
Esseesse said:
IIRC Russia was building it's own GPS system, but I don't think it works yet, or not everywhere.
Do these Russian planes rely on GPS? I know they could navigate with a chart and a compass if necessary but presumably they make use of the US GPS system?
It works fine now, its called GLONASS and your phone may well have a combined GPS/GLONASS receiverDo these Russian planes rely on GPS? I know they could navigate with a chart and a compass if necessary but presumably they make use of the US GPS system?
http://en.wikipedia.org/wiki/GLONASS#Achieving_ful...
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