BACK COURSE (BACK CRS)
Mode
Whenever a
LOC
or
ILS
frequency is
selected, the BC mode may be activated by
depressing the BC button on the Mode Con-
troller,
after
selecting APPR. When in BC
mode and Localizer caDture occurs. the
I
system will turn and track outbound on the
front course or inbound on the back course.
The BC mode reverses the
LOC
deviation
signal and course datum
to
permit the FCI
steering command display
to
operate on a fly-
to
rather than a fly-from basis on the reverse
course. “BACK CRS” is lighted on the Annun-
ciator Panel.
Operation on BC is identical to front
course operation including setting the PNI
Course Pointer
to
the front course heading,
except that automatic Glideslope capture is
“locked out” by the switching circuitry.
Localizer deviation on PNI will have the proper
sensing if the front inbound Localizer course
was set on the PNI.
GO-AROUND
Mode
The Go-Around mode is primarily de-
signed
to
assist the pilot in establishing the
proper pitch attitude under missed approach
conditions. The Go-Around switch is located
on the throttle lever for pilot convenience
when applying climb-out power.
Depression of the Go-Around switch
during an approach cancels all Flight Di-
rector modes and disengages the Autopilot,
if it is engaged.* A wings-level and pitch-up
command is displayed by the
FCI
and
:GO
AROUND” is lighted on the Annunciator
Panel. The magnitude of the pitch-up com-
mand is adjustable
to
match Flight Manual
criteria for each aircraft model.
The Go-Around mode may also be used
on takeoff for climb-out attitude guidance.
When used for takeoff, the Go-Around mode
may be followed with HDG for continuous
heading control during departure. NAV and
APPR modes may also be armed for automa-
tic capture and guidance during the depar-
ture sequence.
Go-Around may be cancelled by use of
Vertical Trim, Altitude Hold mode,
Control
Wheel Steering mode or by turning off the
Flight Director.
*Some airplanes are certified with the Auto-
pilot remaining engaged when GA is
selected. (Refer
to
Flight Manual Sup,ple-
ment to determine your type of installation.)
ALTITUDE SELECT (ALT ARM)
Mode
This mode allows the pilot to select an
altitude and, upon approaching that se-
lected altitude, obtain an automatic visual
pitch command on the FCI
to
capture and
hold the preselected altitude. To operate in
this mode the pilot must:
1.
Set the desired altitude into the
“selected altitude” window of the KAS
297
Altitude Selector.
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