GPS SUbstitute for DME or ADF

The ONLY waypoints that can NOT be substituted by approved GPS in
Canada are NDBs and VORs used for Missed Approaches (i.e. you must
have an NDB or VOR as the case may be or request different missed
approach instructions). Weird but true.

A.I.P. 3.16.4.3.1. says "GPS may be used to identify all fixes defined
by DME, VOR, VOR/DME and NDB, including fixes that are part of any
IAP, to navigate to and from these fixes, ..." So far, so good. Next
paragraph: "For these approaches [NDB and VOR approaches without a GPS
overlay], and for approaches based on a LOC for lateral guidance,
pilots shall not use GPS for missed approach guidance when the missed
approach procedure requires tracking to or from an NDB or VOR."

To be totally clear, this applies only to approaches that do not have
a GPS overlay and it does not apply to GPS approaches, of course.

Gerd
T182 C-FDOW

Simon
I had put a garmin 430 in my old plane, it was IFR certified, any ifr certified
GPS will have to have the supplement in the POH, but yes a IFR certified GPS can
be used in place of a VOR/DME , but you have to have back up equipment in the
plane, ie.. VOR, in case the GPS goes out. If you use a 430, it pretty much does
everything for you, tells you when to turn and to what heading, your not using
VOR's or DME so you cant use say, the approach shows your MAP at 14 DME from xxx
vor, but it will show you the MAP on the moving map so you know when your there,
it also will show you your FAF, pretty simple to use once you learn it. But yes
it can replace all the other stuff when its installed / certified for IFR

"S. Ramirez" wrote:

Someone in another forum said that it's okay to substitute certified GPS for
DME or ADF on an approach plate that depicts FAFs or intersecting points
using DME or ADF. I asked that person to back it up with a reference from
an official document like the FARs, AIM or something that the FAA puts out.
He can't do it. Does anyone know where this information may be located?

Thanks.

Simon

"jeff" wrote in message ...
Simon
I had put a garmin 430 in my old plane, it was IFR certified, any ifr certified
GPS will have to have the supplement in the POH, but yes a IFR certified GPS can
be used in place of a VOR/DME , but you have to have back up equipment in the
plane, ie.

Actually, all you need is an alternate that doesn't require the GPS. But if you
have a 430, you don't need any other equipment provided you can find a destination
that only requires VOR/LOC/GS. It's not redundancy for the 430, it's possible
systemic GPS failures they're guarding against.