Thomas Borchert wrote:
Matt,


My guess is that you'll
find more GPS approaches that require DME than require ADF.



but how many would there be where the GPS could not legally replace the
DME? Those are only the very few where the DME is not in the database.


There are no GPS appraoches that require DME period. It's not a
matter of "replacing" it.

The only issue is using GPS to substitute for DME on NON-GPS
approaches. You can do that if you have the fix AND this isn't
the non-GPS required alternate.