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Old June 9th 05, 04:35 AM
John R. Copeland
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"Andrew Gideon" wrote in message =
online.com...
Victor J. Osborne, Jr. wrote:
=20
But does this feature work as enhancements to existing SDF/LOC =

approaches?
=20
My reading of the advertising-speak is that it can build a descent =

profile
for any approach. I've some question about that (ie. what if the =

straight
line from FAF to VDP passes under a stepdown), but I don't know that =

I've
interpreted the advertising-speak accurately.
=20
- Andrew


I agree the "advertising-speak" seems to say what you interpreted.
But I've yet to encounter a computed glide slope for any SDF/LOC
or VOR approaches in my CNX80.
(If some are there, though, someone will surely tell us so.)

However, it seems like all RNAV (GPS) approaches, as well as a majority
of the plain-vanilla GPS approaches do give me vertical guidance,
to which I can couple my 3-axis autopilot if I so choose.
During practice, I make sure I'm comfortable either coupled or =
uncoupled.

Regarding the "straight line from FAF to VDP passing under a stepdown",
that's handled by a charting a delay before descending until reaching a =
point
from which the stabilized descent *will* meet obstruction-clearance =
criteria.
The CNX80/GNS480 follows that charting.
It does not start the descent from the FAF when it's incorrect to do so.