CHAPTER 4 REFERENCE GUIDE
EFD1000 PRO MAX PFD Pilot’s Guide
Page 4-61
091-00005-002 ()
When using GPSS with a stand-alone VLOC receiver, or with a combined GPS/VLOC
navigator, GPSS will continue to follow the GPS output of that combined navigator,
even when VLOC is selected as the PFD Selected CDI Navigation Source. With combined
GPS/VLOC receivers, the transition from GPS to VLOC may occur automatically,
depending on how that system has been configured by the pilot.
For example, suppose you use a GPS to fly a GPS flight plan and have an ILS instrument
approach loaded and active, and the GPS is set for Auto ILS CDI changeover once you
are established inbound on the final approach course. With GPSS enabled on the PFD
and the autopilot in HDG mode, the GPSS will steer the autopilot laterally through
the flight plan using GPS, even after the GPS CDI automatically switches to VLOC, and
the PFD navigation source similarly switches to VLOC. However, until you switch the
autopilot into the Approach mode, it will not arm or capture the glideslope to fly the
ILS approach. This feature is particularly useful for autopilots that do not automatically
transition from Heading mode to Nav mode when the selected course is intercepted.
NOTE
Refer to the Aircraft Flight Manual Supplement for your GPS for information about
GPSS commands that may be output by that system.
Figure 4-107
GPSS Enabled with Autopilot in
HDG Mode
Figure 4-108
GPSS Disabled and Autopilot in
HDG Mode
To Next Page
Loading...
