IFR with a VFR GPS

"Bob Gardner" writes:

Tell them. Just as is the case with icing certification, the
controllers are not into law enforcement. Tell them you have a GPS
and you will get all of the benefits.

.... and as with flying in icing with substandard equipment, you will
face all the risks in case something goes wrong.

- FChE

"Frank Ch. Eigler" wrote in message
...

... and as with flying in icing with substandard equipment, you will
face all the risks in case something goes wrong.


What are the risks of flying IFR with a VFR GPS?

"Steven P. McNicoll" wrote:

"Frank Ch. Eigler" wrote in message
...

... and as with flying in icing with substandard equipment, you will
face all the risks in case something goes wrong.


What are the risks of flying IFR with a VFR GPS?

What happens when these VFR GPS's drop reception of all but one or two
satellites? Do they instantly provide a RAIM message?

--
Peter
























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"Peter R." wrote in message
...

What happens when these VFR GPS's drop reception of all but one or two
satellites? Do they instantly provide a RAIM message?


I don't know? Is it a problem if they don't?

"Steven P. McNicoll" wrote:

"Peter R." wrote in message
...

What happens when these VFR GPS's drop reception of all but one or two
satellites? Do they instantly provide a RAIM message?


I don't know? Is it a problem if they don't?

If the pilot were using the unit for primary navigation in IMC and the unit
did not warn the pilot of too few satellites to be able to calculate
position, would that be a problem?

--
Peter
























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"Peter R." wrote in message
...

If the pilot were using the unit for primary navigation in IMC and the
unit
did not warn the pilot of too few satellites to be able to calculate
position, would that be a problem?


No.

"Steven P. McNicoll" wrote:

"Peter R." wrote in message
...

If the pilot were using the unit for primary navigation in IMC and the
unit
did not warn the pilot of too few satellites to be able to calculate
position, would that be a problem?


No.

Why?

--
Peter
























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"Peter R." wrote:

"Steven P. McNicoll" wrote:

"Peter R." wrote in message
...

What happens when these VFR GPS's drop reception of all but one or two
satellites? Do they instantly provide a RAIM message?


I don't know? Is it a problem if they don't?

If the pilot were using the unit for primary navigation in IMC and the unit
did not warn the pilot of too few satellites to be able to calculate
position, would that be a problem?

You should note that if you lose lock (too few satellites) then your
display will start flashing (or portions of it). That is not RAIM
which determines if you have a signal error.

Ron Lee

Ron Lee wrote:

You should note that if you lose lock (too few satellites) then your
display will start flashing (or portions of it). That is not RAIM
which determines if you have a signal error.

Just to clarify, are you saying that a *VFR* GPS's screen flashes when the
GPS loses the required number of satellites for position calculation and
that error is not a result of built-in RAIM?



--
Peter
























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