Page 8-4
G1000/GFC 700 Post Installation Checkout Procedure - Hawker / Beechcraft King Air C90
Revision 5
190-00682-00
8.8.1
NAV (GPS) MODE
1. Engage the autopilot in
HDG
and
ALT
modes.
2. Select
‘
GPS’
as the
NAV
sensor displayed on the HSI. With the GCU 475, enter a
Direct-To
GPS waypoint
.
3. Press
the
NAV
key on the AFCS mode controller. “
GPS
” annunciates in green on the PFD AFCS
Status Bar. Verify the autopilot turns as required to track the course to the selected waypoint with
minimal offset and no oscillations.
8.8.2
NAV (VOR) Mode
1. Tune NAV1 to a VOR station approximately twenty miles away. Select VOR1 for display on PFD1
HSI.
2. Center the CDI by pushing the CRS1 knob. Using the CRS1 knob, change selected course by
10
°
.
3. Engage
HDG
and
ALT
modes and set up an intercept angle of 30
°
to 60
°
to the selected course
using the heading bug on the HSI.
4. Arm the VOR mode by pressing the
NAV
key on the AFCS mode controller. “VOR” will appear in
white to the left of the active HDG mode.
5. Verify the system flies in HDG mode until the proper intercept point is reached and automatically
switches from HDG to VOR mode. Verify the green “HDG” annunciation extinguishes and a
green “VOR” appears and the green “VOR” flashes for 10 seconds to indicate the transition to the
new mode.
6. Verify when NAV mode is coupled, the system banks the airplane, up to a maximum bank angle
of 25
°
±
2
°
to turn on to the radial with minimal overshoot. Allow the system to track the radial for
five minutes. Verify the autopilot tracks the selected course with minimal scalloping or oscillation.
8.8.3
NAV (BC) and APR (ILS) Modes
1. Establish the airplane in the following configuration:
a. 120
KIAS
b. Gear
down
c. Approach
flaps
d. Autopilot coupled in HDG and ALT mode
e. Maintaining minimum glideslope intercept altitude or higher
2. Tune the ILS frequency for the ILS approach to be flown and select NAV 1 or NAV 2 on the HSI.
Verify that the course pointer is set to the published inbound approach course.
3. Use the heading bug to set the intercept angle to 45
°
to the
OUTBOUND
course. It will be
necessary to intercept the outbound course to check proper back course (BC) operation.
4. Press
the
BC
key on the AFCS mode controller prior to intercepting the localizer to arm BC
mode. The “BC” annunciation will illuminate in white on PFD1 and PFD2. The system will
capture and track the localizer outbound. (Some overshoot may occur if the ground speed is
excessive or the capture is made extremely close to the runway. At the point of capture, the “BC”
annunciation will change to green and will flash for 10 seconds to indicate the transition to the
new mode.
5. Center the heading bug. Press the
HDG
key on the AFCS mode controller. Use the heading
bug, execute a procedure turn to the inbound course.
6. When the airplane is within 105
°
of the inbound course, press the APR key on the AFCS mode
controller. This will cause “LOC” to annunciate in white to the left of “HDG”, “GS” will annunciate
in white to the right of the reference altitude.
