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'
..
1~
BACK COURSE (BC)
MODE
USING THE
KG
107/Kl
206
INDICATORS
In the back course (BC) mode the
autopilot intercepts and tracks a reverse
course
ILS.
To operate in the BC mode
(with the KAP
100
currently in the HDG
mode):
1.
Tune the frequency for the selected
ILS
back course.
2.
Select the back course mode by either
depressing the APR button and then
the BC button, or by merely depress-
ing the BC button itself.
3.
Within five seconds, move the heading
'bug' on the KG
107
to the same mag-
netic heading as the selected front
course
(090
degrees in this example).
The 'HDG' light will remain illuminated,
and the 'APR' light will flash to signify
that the APR mode is armed.
NOTE:
If
the BC APR mode is selected with
the aircraft level within
*4
degrees and
within
2-3
dots of course deviation, BC APR
arm mode will be bypassed and the BC
APR mode will engage directly.
4.
The autopilot will fly an automatic
45
degree intercept heading until within
the capture zone, then intercept and
fly the desir& &urse, which will be a
reciprocal to the front course. The
'HDG" light will go
off
and the 'APR'
light will illuminate steadily as the BC
mode goes from arm to engage.
5.
The autopilot will bank as required to
maintain course. Automatic crosswind
compensation will provide precise
tracking.
NOTE:
For system limitations refer to your
Flight Manual Supplement.
(See page
76/77
for illustration)
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