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Is your IFR GPS still legal for use?



 
 
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  #1  
Old May 25th 07, 01:07 PM posted to rec.aviation.piloting
john smith[_2_]
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Posts: 393
Default Is your IFR GPS still legal for use?

AvWeb has an article in todays issue saying that only the GPS 400/500
series and G1000 are the only IFR certified navigators that are legal to
use.
  #2  
Old May 25th 07, 01:33 PM posted to rec.aviation.piloting
Peter R.
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Posts: 1,045
Default Is your IFR GPS still legal for use?

On 5/25/2007 8:07:17 AM, john smith wrote:

AvWeb has an article in todays issue saying that only the GPS 400/500
series and G1000 are the only IFR certified navigators that are legal to
use.


Admittedly I didn't read the entire circular (I have a Garmin GNS430), but my
quick skim of it seemed to indicate that the non-compliant models are no
longer allowed to use GPS in lieu of ADF or DME, where that is applicable,
unless alternate instructions are provided by ATC. This would imply that for
home-grown RNAV approaches these units would still be legal. Did I interpret
incorrectly?

--
Peter
  #3  
Old May 25th 07, 01:46 PM posted to rec.aviation.piloting
Bob Moore
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Posts: 291
Default Is your IFR GPS still legal for use?

john smith wrote
AvWeb has an article in todays issue saying that only the GPS 400/500
series and G1000 are the only IFR certified navigators that are legal to
use.


Not exactly what AvWeb said.....


Many previously IFR-certified GPS receivers might now be unapproved for
flying many instrument procedures due to recent FAA policy changes,
according to AOPA. On Thursday, the association said the FAA's Advisory
Circular 90-100A, issued in March, indicates that only three GPS models --
the Garmin 400, 500 and G1000 series -- are now legal. Other models made by
Garmin, including the new GNS 480 WAAS receiver, as well as receivers
manufactured by Chelton, Honeywell, Northstar, and Trimble are listed as
"noncompliant," AOPA said. The action means up to 26,000 GPS users no
longer comply with a 1996 FAA policy that allows GPS to be used in lieu of
ADF or DME.

Bob Moore
  #4  
Old May 25th 07, 01:57 PM posted to rec.aviation.piloting
Roy Smith
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Posts: 478
Default Is your IFR GPS still legal for use?

In article 28,
Bob Moore wrote:

john smith wrote
AvWeb has an article in todays issue saying that only the GPS 400/500
series and G1000 are the only IFR certified navigators that are legal to
use.


Not exactly what AvWeb said.....


Many previously IFR-certified GPS receivers might now be unapproved for
flying many instrument procedures due to recent FAA policy changes,
according to AOPA. On Thursday, the association said the FAA's Advisory
Circular 90-100A, issued in March, indicates that only three GPS models --
the Garmin 400, 500 and G1000 series -- are now legal. Other models made by
Garmin, including the new GNS 480 WAAS receiver, as well as receivers
manufactured by Chelton, Honeywell, Northstar, and Trimble are listed as
"noncompliant," AOPA said. The action means up to 26,000 GPS users no
longer comply with a 1996 FAA policy that allows GPS to be used in lieu of
ADF or DME.

Bob Moore


But it's legal to fly those very same approaches with a 30 year old ADF
which points vaguely in the direction of either 1) the radio beacon, 2) the
nearest T-storm, or 3) some other random propagation anomaly, and an
equally ancient DME which is doing good if it's correct to within 1/4 mile.
Gotta love the FAA. A fine example of why getting all the government
you've paid for is a bad thing.
  #5  
Old May 25th 07, 02:03 PM posted to rec.aviation.piloting
Mxsmanic
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Posts: 9,169
Default Is your IFR GPS still legal for use?

Bob Moore writes:

The action means up to 26,000 GPS users no
longer comply with a 1996 FAA policy that allows GPS to be used in lieu of
ADF or DME.


If the FAA declares that all aircraft must be encrusted in diamonds to be
certified to fly, does the entire aviation world just roll over and spring for
the diamonds? What ever happened to checks and balances?

--
Transpose mxsmanic and gmail to reach me by e-mail.
  #6  
Old May 25th 07, 02:24 PM posted to rec.aviation.piloting
Ron Natalie
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Posts: 1,175
Default Is your IFR GPS still legal for use?

Bob Moore wrote:
new GNS 480 WAAS receiver,

What's new about the 480? It's been on the market as the Garmin 480
(with WAAS and C146 certification) for nearly four years now and is
identical to the UPSAT branded units before that. There' has been
one whopping software revision in the interim (the one that fixes the
256 LPV approach limit).
  #7  
Old May 25th 07, 02:55 PM posted to rec.aviation.piloting
B A R R Y[_2_]
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Posts: 782
Default Is your IFR GPS still legal for use?

Roy Smith wrote:

But it's legal to fly those very same approaches with a 30 year old ADF
which points vaguely in the direction of either 1) the radio beacon, 2) the
nearest T-storm, or 3) some other random propagation anomaly, and an
equally ancient DME which is doing good if it's correct to within 1/4 mile.
Gotta love the FAA.


I always wondered the same thing.

You'd think a 196 on the yoke would outperform the ADF is some situations.
  #8  
Old May 25th 07, 03:08 PM posted to rec.aviation.piloting
ArtP
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Posts: 44
Default Is your IFR GPS still legal for use?

On Fri, 25 May 2007 09:24:41 -0400, Ron Natalie
wrote:


What's new about the 480? It's been on the market as the Garmin 480
(with WAAS and C146 certification) for nearly four years now and is
identical to the UPSAT branded units before that. There' has been
one whopping software revision in the interim (the one that fixes the
256 LPV approach limit).


That unit was specifically mentioned by AOPA as not approved.

  #9  
Old May 25th 07, 03:24 PM posted to rec.aviation.piloting
Aluckyguess
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Posts: 276
Default Is your IFR GPS still legal for use?


"ArtP" wrote in message
...
On Fri, 25 May 2007 09:24:41 -0400, Ron Natalie
wrote:


What's new about the 480? It's been on the market as the Garmin 480
(with WAAS and C146 certification) for nearly four years now and is
identical to the UPSAT branded units before that. There' has been
one whopping software revision in the interim (the one that fixes the
256 LPV approach limit).


That unit was specifically mentioned by AOPA as not approved.

I was thinking of getting one of them. I wonder what the difference is.



  #10  
Old May 25th 07, 04:02 PM posted to rec.aviation.piloting
Maxwell
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Posts: 1,116
Default Is your IFR GPS still legal for use?


"Mxsmanic" wrote in message
news

If the FAA declares that all aircraft must be encrusted in diamonds to be
certified to fly, does the entire aviation world just roll over and spring
for
the diamonds? What ever happened to checks and balances?


Haven't you found a job yet?


 




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