Flying with the EXP5000
600-00157-000 Rev. 06
-37-
Entegra EXP5000 PFD
As the target altitude is approached, the VSI Bug will automatically
move toward zero and will become hollow when the target altitude is
captured. At the target altitude, the delta-shaped aircraft reference
symbol is tucked into the Flight Director command bars.
S-Tec 55X Autopilot Operation During a PFD Failure
In the unlikely event of a total PFD failure, the autopilot can still be
controlled via its control head. How it works depends on whether you
have a one or two PFDs as follows.
Failure with a Single PFD
In a single-PFD installation, the Nav Relay automatically connects
GPS 1 to the autopilot. The GPS provides NAV data to the autopilot
which, if set to GPSS mode, will fly as commanded. GPS roll steering
(GPSS Mode) is the only horizontal mode available on the autopilot.
!
When engaging the Altitude Capture Mode, confirm that both
ALT and VS are engaged on the autopilot. If VS is not
engaged the autopilot will level the aircraft at the current
altitude when ALT is engaged on the autopilot.
!
The vertical modes of the S-TEC 55X Autopilot (Alt Hold, Alt
Capture, and VS Mode) are wired to the pilot PFD only. If the
copilot altimeter or VSI differs from the pilot’s, the copilot PFD
may display a mismatch between the bugs and the autopilot
controlled altitude or vertical speed.
Note:
In a single-PFD configuration, only GPS1 is capable of being the
navigation source to the autopilot in the event of a PFD failure.
!
For S-TEC 55X Autopilots.
If the Heading Hold mode of the
55X is engaged when the PFD is powered down or shuts
down, it is likely that the aircraft will enter a 1/4- to 1/2-
standard rate turn to the right and will remain in the turn
indefinitely.
Heading mode is inoperative when the PFD is inoperative. In
this case, GPSS mode is the
only
horizontal mode available.
Summary of Contents for Envision EXP5000
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