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RE VERSE LOCALIZER
APPROACH
-
(BC)
If a back course approach is
required, it can be accomplished
as easily as a front course
approach. The course arrow
should always be set on the front
course inbound localizer course.
This will result in conventional pic-
torial deviation sensing even on
back course. The KI 525A display
gives you an accurate picture of
where you are at all times during
the approach and procedure turn
I
"-
B
1.
You are outbound on the back localizer
course, having already set the course
pointer to the inbound front course at 238
degrees. The heading bug is preset at
193 degrees for the procedure turn.
(Since there is usually no glideslope sig-
nal on a back course, the glideslope
pointers are out of sight.)
3.
Now you've reset the heading bug to 013
degrees and made a 180 degree turn to
this heading. This 013 degree heading
will intercept the back course. The KI
525A clearly pictures the course you are
to intercept and the angle of interception.
/
2.
During the procedure turn outbound, the
deviation bar shows pictorially that the air-
craft (as represented by the symbolic air-
craft in the center of the KI 525A) is flying
degree angle when the heading bug is
under the lubber line. Note that left-right
deviations of the course bar give 'fly-to'
indicators, just as on the front course.
away from the localizer centerline at a 45
u
4.
You have smoothly intercepted the back
course. Since the course arrow is set on
the front course (238 degrees), the KI
525A shows a true picture of the situation
-flying inbound on the back course. You
may reset the heading bug to 058
degrees for easy reference.
NOTE: For system limitations refer to your
Flight Manual Supplement.
110
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