This question is directly related to my other question so I have to ask it

I think its obvious why I ask this if you read that question but I will repeat myself again.

Station based navigation is literally dying and airspace is getting more crowded everyday.

So will the GPS be an FAA requirement in the future? I couldn't find it but I guess I am missing it.

I am just afraid of an future where people not finding approaches for airports which will limit them to the "backcountry" airports which still will have VOR DME and NDB.

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    $\begingroup$ So will the GPS be an FAA requirement in the future? It is a requirement in 2020 with the ADS-B mandate. *For certain airspaces... $\endgroup$ – Ron Beyer May 14 '19 at 17:52
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    $\begingroup$ @RonBeyer That's true, but I think the question here is about an approach-capable GPS, rather than an ADS-B position source. There are 'cheaper' ADS-B solutions out there that don't provide any GPS display in the cockpit. $\endgroup$ – Pondlife May 14 '19 at 18:00
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    $\begingroup$ Why do you think "backcountry" airports even have instrument approaches? $\endgroup$ – jamesqf May 14 '19 at 18:02
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    $\begingroup$ "Station-based navigation is literally dying" this is a considerable exaggeration. $\endgroup$ – 0xdd May 14 '19 at 18:49
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    $\begingroup$ That's cool, but there are large swaths of the world not regulated by the FAA (as well as admittedly small areas in the US) which will continue having station-based nav for a while to come. $\endgroup$ – 0xdd May 14 '19 at 19:03

They are well on their way but it will never be a direct requirement per say. The regulations state

(2) Two-way radio communication and navigation equipment suitable for the route to be flown.

In many places a traditional VOR, DME, NDB or ADF may suffice as suitable navigation equipment however the FAA now has lower altitude GPS routes as well as many LPV approaches out there that are coming on line. Generally LPV approaches have lower minimums than their non precision radio beacon counterparts. Thus going into an airport that often sees weather may only be possible with an LPV capable (WAAS) GPS. In turn your operations may be severely limited without GPS moving forward.

The FAA will likely never institute a regulation that says something like all aircraft have to have IFR capable GPS' on board as thats not really how they regulate things. Eventually if they were to drop all ground based radio nav aids in order to be compliant with the above regulation everyone wishing to fly IFR would need to have an IFR legal GPS on board.

For the record "back country" airports are far more likely to have a GPS approach than a ground based radio approach as their may be no facility near by and GPS approaches can be simpler to maintain and add to an existing field.


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