IFR with a VFR GPS

"Steven P. McNicoll" wrote:

"Peter R." wrote in message
...

Why?


Because the properties of a "problem" are not present.
snip

Primary navigation (the VFR GPS) is no longer reliable, the aircraft is
IMC, and the pilot is unaware that the unit is no longer reliable. Those
are not properties of a problem?




--
Peter
























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"Peter R." wrote in message
...

Primary navigation (the VFR GPS) is no longer reliable, the aircraft is
IMC, and the pilot is unaware that the unit is no longer reliable. Those
are not properties of a problem?


I don't think so. If the aircraft drifts off course the controller will
nudge it back and the pilot will then be aware that the unit is no longer
reliable. No problem.

"Steven P. McNicoll" wrote:

"Peter R." wrote in message
...

Primary navigation (the VFR GPS) is no longer reliable, the aircraft is
IMC, and the pilot is unaware that the unit is no longer reliable. Those
are not properties of a problem?


I don't think so. If the aircraft drifts off course the controller will
nudge it back and the pilot will then be aware that the unit is no longer
reliable. No problem.

Assuming the aircraft is in controlled airspace. What if it isn't?

--
Peter
























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"Peter R." wrote:

"Steven P. McNicoll" wrote:

"Peter R." wrote in message
...

Primary navigation (the VFR GPS) is no longer reliable, the aircraft is
IMC, and the pilot is unaware that the unit is no longer reliable. Those
are not properties of a problem?


I don't think so. If the aircraft drifts off course the controller will
nudge it back and the pilot will then be aware that the unit is no longer
reliable. No problem.

Assuming the aircraft is in controlled airspace. What if it isn't?

Sorry, I mean assuming the aircraft is in radar contact.

--
Peter
























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"Peter R." wrote in message
...

Sorry, I mean assuming the aircraft is in radar contact.


Radar monitoring is required for off-airways routes beyond navaid
altitude/distance limits. So if not in radar contact your route will be via
airways or between navaids within the established limits. You'll know the
VFR GPS is unreliable when it no longer agrees with your more traditional
navigation radios.

"Steven P. McNicoll" wrote:

You'll know the
VFR GPS is unreliable when it no longer agrees with your more
traditional navigation radios.

Assuming the pilot is continually tuning his traditional navigation radios,
then including those in his instrument scan. And what if he does not?

You asked what the risks of flying IFR with a VFR GPS are. There's one.

--
Peter
























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"Peter R." wrote in message
...

Assuming the pilot is continually tuning his traditional navigation
radios,
then including those in his instrument scan. And what if he does not?


Why would he do that?



You asked what the risks of flying IFR with a VFR GPS are. There's one.


But I didn't ask what are the risks of flying IFR using a VFR GPS
exclusively.

In article ,
"Peter R." wrote:
Assuming the pilot is continually tuning his traditional navigation radios,
then including those in his instrument scan. And what if he does not?

You asked what the risks of flying IFR with a VFR GPS are. There's one.


Why wouldn't you use all available information? I never rely on any one
source if I have supplementary sources of information available, GPS or
no GPS.



JKG

Peter,

Assuming the pilot is continually tuning his traditional navigation radios,
then including those in his instrument scan. And what if he does not?


Then he doesn't adhere to the rules. That's like asking: What if the pilots
points the airplane at the ground?

--
Thomas Borchert (EDDH)

"Peter R." wrote in message
...

Assuming the aircraft is in controlled airspace. What if it isn't?


We're not assuming the aircraft is in controlled airspace, we know it is.
That was established in the original message.