Ok. We agree that Part 95 does not govern tracking airways.

It also does not govern the ground facitilities that must be used to track
airways. The only thing Part 95 does is refer to the airways and that is
only to allow the use of GPS in areas when it is impossible to use VORs to
track the airways.

I'm still missing the part where a regulation requires me to use a certified
GPS.

As a few examples of clarity, 91.181 requires that, during IFR flight, I fly
(a) on a airway or (b) a straight line to a fix. Note that it does not
stipulate the equipment I must use to accomplish that.

91.171 prohibits IFR navigation by reference to a VOR receiver unless it has
been checked.

91.205 requires that I have the appropriate equipment for the ground
facilities to be used.

The point that many people are trying to make in this discussion is that
there is no similarly explicit statement about using certified GPS receivers
for enroute navigation.

You have stated that this is only an opinion. Actually, it is not an
opinion. It is an observation that has yet to be refuted.

Please understand that I am only debating the explicit regulation to use
certified GPS receivers. It is fact only in that no one has been able to
cite a regulation to the contrary. You have stated an opinion that GPS
receivers must be certified for IFR enroute navigation but you have not
cited a regulation to back up that opinion.

--
-------------------------------
Travis
Lake N3094P
PWK


"Sam Spade" wrote in message
news:OlJ8g.176145$bm6.85233@fed1read04...
Travis Marlatte wrote:
As you say, part 95 governs IFR altitudes - not tracking airways. It does
not define airways nor how to track them. It defines altitudes to be used
when on and off airways.

I never said it governs tracking of airways. It does govern the ground
facilities you must use to track the airway; i.e., from "VOR ABC to VOR
DEF." Apparently, you don't understand that.

Part 95 is irrelevant to the discussion at hand. There are no regulations
that prohibit the use of a non-certified GPS in IFR flight.


That is your statement of opinion, which is not shared by everyone,
including those at the FAA who control this stuff.