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by omegant 1711 days ago
We still have inertial and radio beacon navigation(VOR, ADF, ILS) , you are always able to disconnect the gps data from the computer.

Obviously GPS is allowing much more precise route and approach navigation, all without ground equipment.

New rules and rutes have been developed the last 15 years to take advantage of GPS precision and global availability.

But current airplanes still keep all the old systems in place and we train with them.

Removal of ground stations could become a problem in the future.

I agree that it is important that alterantive navigationsystems are available.

1 comments

The waves of deactivations on the ground stations have already started. We're on a trajectory of GPS over-reliance.

https://www.boldmethod.com/learn-to-fly/navigation/the-faa-i...

https://www.aopa.org/news-and-media/all-news/2018/may/23/vor...

From the first (2016) article:

> 10 years from now, the network of VORs will be about 68% the size it currently is.

So they're cutting about one-third of the VORs by the end of the phase out.

Bad idea. Relying on any single technology creates a nasty single point of failure. GPS signals are weak signals from satellites & obviously can be jammed.
The VOR MON is structured to provide a usable (for safety purposes) backstop should GPS fail, so from a safety perspective this isn’t making us more reliant.