AUTOPILOT
AIRPLANE
OPERATIONS
MANUAL
2-19-10
Page
4
Code
01
REVISION 36
AOM-145/1114
The mode will be canceled or inhibited if any of the following
conditions occur:
Pressing the NAV button.
Selecting VAPP or HDG modes.
Changing the displayed NAV source on the PFD.
Changing the displayed heading source on the PFD.
When the displayed heading is invalid.
When the displayed NAV source is invalid for more than
5 seconds.
Pressing the Go Around Button.
Turn Control Knob out of detent with autopilot engaged.
VOR APPROACH MODE (VAPP)
The VOR Approach mode provides the same capabilities as the VOR
NAV mode, with higher gain for operation close to the station.
It is recommended to select VAPP mode only on the final approach
segment. Therefore, the outbound segment should be flown using
some other mode.
This mode is selected by pressing the APR button on the Flight
Guidance Controller, with VOR displayed on the PFD. This mode is
canceled or inhibited by the same conditions as the VOR NAV mode.
Selecting VOR Approach mode, the HDG select mode will
automatically be engaged providing the green HDG annunciation on
the PFD in conjunction with the armed VOR approach and white NAV
annunciation, also on the PFD.
LOCALIZER MODES (LOC/BC)
The Localizer Modes allow automatic capture and tracking of localizer
transmitters. Both front course (LOC) and back course (BC)
approaches are supported.
The back course approach operates similar to the front course
approach, except that the beam deviation is inverted, allowing the
system to approach the runway 180q from the front-course.
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