Front Course Ils Approach - Honeywell Bendix/King KFC 225 Pilot's Manual

Automatic flight control system
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Detailed System Operation

Front Course ILS Approach

AIR
DH
AIR
ı
NAV
HDG
GS
GS
ı
YD
ARM
VS
G
UP
P
R
AP
FD
HDG
NAV
APR
REV
ALT
DN
KFC 225
1. Continuing the Front Course for Procedure Turn
to ILS Approach maneuver, APR coupling
occurs (HDG annunciation changes to APR),
and the glideslope mode is automatically
armed. The autopilot will capture the localizer
and the CDI course index will center.
20
KFC 225 AUTOMATIC FLIGHT CONTROL SYSTEM
AIR
DH
20
20
10
10
10
10
20
20
AIR
ı
NAV
HDG
GS
GS
ı
YD
ARM
VS
G
UP
P
R
AP
FD
HDG
NAV
APR
REV
ALT
DN
KFC 225
2. The autopilot is following the localizer. At the
outer marker, the glideslope deviation needle is
at midscale. Altitude hold is automatically disen-
gaged when the glideslope is captured. The ALT
annunciation extinguishes and GS is displayed.
The autopilot will make pitch and bank changes
as necessary to maintain localizer and glides-
lope.
Rev. 0
Apr/99
AIR
DH
20
20
10
10
10
10
20
20
ı
NAV
HDG
GS
GS
ı
YD
ARM
VS
G
UP
P
R
AP
FD
HDG
NAV
APR
REV
ALT
DN
KFC 225
3. At the middle marker, the pilot disengages the
autopilot for landing, or may press the Go-
Around button, also disengaging the autopilot to
initiate a missed approach. This cancels APR
and GS modes and engages the Flight Director
in ROL (wings level) and GA (Pitch Attitude
Hold) at GA pitch angle. A flashing AP is dis-
played and a disconnect tone is heard.
Rev. 0
KFC 225 AUTOMATIC FLIGHT CONTROL SYSTEM
Apr/99
Detailed System Operation
AIR
DH
20
20
10
10
10
10
20
20
AIR
ı
NAV
HDG
GS
GS
ı
YD
ARM
VS
G
UP
P
R
AP
FD
HDG
NAV
APR
REV
ALT
DN
KFC 225
4. The pilot may now re-engage the autopilot.
Press HDG to engage the heading mode to fly
the missed approach. Press CWS and pitch the
aircraft to obtain best climb. This will sync the
command bars and change the annunciation to
PIT from GA. Finally, pressing the ARM button
will arm the selected altitude.
21

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