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.