WAAS GPS equipment suffix in a RNAV flight plan ?

[jbskies]

Question:

I read the latest LTA (letter to airman, 2008/06/19) for the latest
RNAV flight plan. In the last paragraph, it says

"It is important to communicate your maximum RNAV capability so the
filer can enter information which allows FAA automation to generate
RNAV arrival and departure routes for qualified aircraft."

It seems that a WAAS GPS (such as GNS430W/530W) has qualified RNP for
RANV1 or RNAV2. Therefore, if we have a WAAS GPS, shall we use the
equipment suffix of /R instead of /G ?

If we use /G, will ATC not grant (or affect) the RNAV/LPV approaches
for a WAAS aircraft under the new flight plan?

How about will it affect filing or flying a RNAV STAR/DP ?


(Please read FAA Advisory Circular Information AC 90-100A and AC
90-45A before answer the question.)


In the previous post in 2005, someone said we shall use /G (see
below), is this still true?

Thanks in advance.

jbskies


On Sep 3 2005, 6:32 am, wrote:
> /G
>
>
>
> Ron Rosenfeld wrote:
> > On Fri, 02 Sep 2005 18:56:15 -0700, wrote:
>
> > >It was a both a typo and a misunderstanding about 146 boxes when I made the
> > >original post. One of my sources pointed out after my initial posting that 146
> > >boxes were good to go absentWAASNOTAMs.
>
> > >My purpose of having made the posting was to point out to users of this Usenet
> > >group the onnerous requirements just imposed on most IFR GPS users.
>
> > Now that that's cleared up, do you know whichequipmentsuffixshould be
> > used for those with GPS units that are capable of the RNP2 and RNP1
> > requirements (in order to fly the RNAV SIDS/STARS)? Should we be using /G
> > or /R (assuming no RVSM)?
>
> > Ron (EPM) (N5843Q, Mooney M20E) (CP, ASEL, ASES, IA)- Hide quoted text -
>
> - Show quoted text -

[Peter Clark]

AIUI, AC 90-100A != "RNP" as applied to oceanic airspace etc. Without
a FSDO letter you're still GLOVZ/C(S) presuming normal non-ADF
equipped with mode C(S) transponder. See AC 90-96A where I think they
differentiate specifically between ICAO RNP and the stuff they're
doing domestically.

FWIW, I've been assigned an RNAV DP from an MCO area airport having
filed a domestic ICAO plan with the above equipment codes and the
appropriate NAV/RNVD1E2A1 comment. Whether that was a fluke or not I
guess remains to be seen.


On Fri, 27 Jun 2008 10:33:05 -0700 (PDT), jbskies >
wrote:

>
>Question:
>
>I read the latest LTA (letter to airman, 2008/06/19) for the latest
>RNAV flight plan. In the last paragraph, it says
>
>"It is important to communicate your maximum RNAV capability so the
>filer can enter information which allows FAA automation to generate
>RNAV arrival and departure routes for qualified aircraft."
>
>It seems that a WAAS GPS (such as GNS430W/530W) has qualified RNP for
>RANV1 or RNAV2. Therefore, if we have a WAAS GPS, shall we use the
>equipment suffix of /R instead of /G ?
>
>If we use /G, will ATC not grant (or affect) the RNAV/LPV approaches
>for a WAAS aircraft under the new flight plan?
>
>How about will it affect filing or flying a RNAV STAR/DP ?
>
>
>(Please read FAA Advisory Circular Information AC 90-100A and AC
>90-45A before answer the question.)
>
>
>In the previous post in 2005, someone said we shall use /G (see
>below), is this still true?
>
>Thanks in advance.
>
>jbskies
>
>
>On Sep 3 2005, 6:32 am, wrote:
>> /G
>>
>>
>>
>> Ron Rosenfeld wrote:
>> > On Fri, 02 Sep 2005 18:56:15 -0700, wrote:
>>
>> > >It was a both a typo and a misunderstanding about 146 boxes when I made the
>> > >original post. One of my sources pointed out after my initial posting that 146
>> > >boxes were good to go absentWAASNOTAMs.
>>
>> > >My purpose of having made the posting was to point out to users of this Usenet
>> > >group the onnerous requirements just imposed on most IFR GPS users.
>>
>> > Now that that's cleared up, do you know whichequipmentsuffixshould be
>> > used for those with GPS units that are capable of the RNP2 and RNP1
>> > requirements (in order to fly the RNAV SIDS/STARS)? Should we be using /G
>> > or /R (assuming no RVSM)?
>>
>> > Ron (EPM) (N5843Q, Mooney M20E) (CP, ASEL, ASES, IA)- Hide quoted text -
>>
>> - Show quoted text -