4 ms·

Note those INS systems depend on some sort of navigational system to verify against due to drift and such, and those systems are GPS or VOR.. and VORs are being

Note those INS systems depend on some sort of navigational system to verify against due to drift and such, and those systems are GPS or VOR.. and VORs are being shut down or decommissioned as they fail (except for the ones declared required for national security).

brohee 2y ago
In the case of planes celestial navigation is a realistic alternative as they fly most of the time above the cloud cover...