KCS 55A Compass System
38
KFC 225 AUTOMATIC FLIGHT CONTROL SYSTEM
Rev. 0
Apr/99
1. Approaching the STL VORTAC, the con-
troller asks you to hold southwest of the
VORTAC on the 244° radial, right turns.
You are now over the station with a 064°
course selected (the TO/FROM indicator
has swung to “FROM”). Set your heading
bug to the reciprocal or outbound heading
of 244° for easy reference and begin your
right turn holding pattern.
2. Halfway through the outbound turn, the KI
525A display shows the deviation bar
behind the symbolic aircraft. You know,
therefore, that you must eventually fly back
to the radial in order to be on course during
the inbound leg of the holding pattern.
3. Outbound, you are using the heading bug as
reference for 244°. The 244° radial is off
the right wing and parallel to your outbound
course.
4. Halfway through your turn to the inbound
064° course, the KI 525A shows the sym-
bolic aircraft approaching the deviation bar
at a right angle. By keeping the top of the
deviation bar on the lubber line, you can
complete your turn and roll out precisely on
course.
Note: For system limitations refer to your
Flight Manual Supplement.
1. You are vectored from the holding pattern
to the 13 DME arc. The aircraft is turning,
with the heading bug set on 170° to inter-
cept the localizer. You have already set the
selected course pointer on the inbound ILS
course 130° and the KI 525A shows the
localizer course is directly ahead. The
glideslope pointers came into view when
the ILS frequency was tuned, since a usable
glideslope signal is being received.
2. Capturing the ILS course can be accom-
plished without overshooting or bracketing
with the same technique you used in inter-
cepting an enroute course. Simply keep the
top of the deviation bar on the lubber line
and coordinate your turn until the bar is
centered with the course arrow. Each dot
on the LOC deviation scale represents 1/2
degree of deviation when tuned to an ILS
frequency.
3. The KI 525A shows you that you have inter-
cepted the localizer course. The glideslope
pointers have started to center, although
the display indicates your aircraft is still
below the glidepath at this point.
4. You are now centered on the localizer and
the glideslope. Once again, the KI 525A
shows your aircraft is crabbed about 5° to
the right to maintain the localizer course.
Note: For system limitations refer to your
Flight Manual Supplement.
KFC 225 AUTOMATIC FLIGHT CONTROL SYSTEM
KCS 55A Compass System
39
Rev. 0
Apr/99
9
0
27
18
1
2
3
4
064
244
2
1
3
4
LOM
2000
13 DME Arc
2000
13 DME Arc
130
MM
GS
GS
N
33
30
W
24
21
S
15
12
E
6
3
ı
GS
GS
N
33
30
W
24
21
S
15
12
E
6
3
ı
GS
GS
N
33
30
W
24
21
S
15
12
E
6
3
ı
GS
GS
N
33
30
W
24
21
S
15
12
E
6
3
ı
GS
GS
N
33
30
W
24
21
S
15
12
E
6
3
ı
GS
GS
N
33
30
W
24
21
S
15
12
E
6
3
ı
GS
GS
N
33
30
W
24
21
S
15
12
E
6
3
ı
HOLDING
PATTERN
ILS APPROACH-
FRONT COURSE
GS
GS
N
33
30
W
24
21
S
15
12
E
6
3
ı
