Non-Precision Approaches; Back Course Approaches - BENDIXKing AeroNav 910 Pilot's Manual

Lateral and vertical deviation data will be transmitted by the
AeroNav for use by any integrated autopilot and external
indicators. Conversely, the AeroNav will toggle the nav source
from VLOC back to GPS when executing the missed approach at
the Missed Approach Point.
GPS Based Precision Approaches
Lateral and vertical deviation data will be transmitted by the
AeroNav for use by any integrated autopilot and external
indicators. For all models except AeroNav 880, precision WAAS
approaches are flown with the nav source knob set to GPS
(which will automatically change to the GPS approach type). For
AeroNav 880, precision WAAS approaches are flown when OBS
has not been selected using the nav source button.

NON-PRECISION APPROACHES

As with the case in precision approaches, as long as the
published approach is entered into the FMS as part of the active
flight plan, the inbound course is done automatically. All switching
between GPS and VLOC (if appropriate) is also done
automatically.†
Procedure turns and holds-in-lieu-of-procedure-turn, when part of
a published procedure, appear as normal legs in the flight plan
and therefore have no special or different procedures – just fly
them as part of the flight plan.
DME arc legs and approaches are supported by the system.
TIPS AND TECHNIQUES
CDI Deflection During VOR Approaches
When VOR and GPS inbound courses are not co-
aligned, a large CDI deflection may occur when the
Nav Source transitions from GPS to VLOC.
BACK COURSE APPROACHES †
This system is designed to fully support flying back course
localizer approaches.
89000039-010
Rev 1 May 2019
AeroNav 900/880 Series Pilot's Guide
Navigation 6-27