IFR use of handheld GPS

Steven P. McNicoll wrote:

"Sam Spade" wrote in message
news:MpR6g.175231$bm6.132922@fed1read04...

Part 95, IFR Altitudes establishes MEAs and is the authority for airways
and Jet Routes. Those airways are rules, just like an instrument approach
procedure is a rule.

With instrument approach procedures (in addition to RNAV/GPS IAPs) you
have VOR and NBD IAPs that are approved for overlay flight with GPS. That
is the authorization to substitute GPS for VOR, where authorized on the
chart.

You don't have any overlay (i.e., standalone, non-radar) authorization fo
Victor Airways or Jet Routes. Thus, if you are not in a radar environment
you cannot use RNAV as primary for Victor airways or Jet Routes.

Does anyone care? Only if something goes wrong.

There are a few Q Routes, which are predicated solely on RNAV, but thus
far they have been established where traffic volumne is high and radar is
available. They are pretty much for the airlines in the lower 48, thus
far. And, I believe they are all in the high altitude stratum.

As I said before, Alaska has a special authorization that specifically
permits GPS/RNAV overlay of Victor airways.



You haven't cited a rule.



I cited Part 95. It is a rule.