TruTrak Vizion 380-385 Operation Manual - Manual (Page 34)

Vizion
380/385
34
Rev
-­‐
Initial
6.4.6. Vertical
Approach
Mode
(Vizion
385
ONLY)
The
vertical
approach
mode
allows
the
autopilot
to
couple
to
and
track
the
glide
slope
of
a
GPS
LPV
approach.
This
mode
is
only
available
in
GPSS
mode.
To
access
this
mode,
the
autopilot
must
be
in
GPSS
mode
and
have
zero
vertical
speed
selected
(section
6.4.1)
or
ALT
HOLD
(section
6.4.2)
selected.
Once
ALT
HOLD
or
zero
vertical
speed
is
selected
the
approach
mode
will
automatically
engage.
It
is
displayed
by
sequencing
GS
ARM
initially
to
GS
CPLD,
once
the
glide
slope
is
intercepted,
on
the
lower
right
of
the
display.
Figure
6.4.6a
shows
the
sequencing
on
the
display.
Figure
6.4.6a
In
the
event
that
the
GPS
sends
out
a
flagged
vertical
steering
signal,
the
autopilot
will
display
GS
FLG
and
maintains
the
current
altitude.
Figure
6.4.6b
shows
the
GS
FLG
display.
Figure
6.4.6b