Approaches - Garmin GFC 600 Manual

APPROACHES

ILS
1. Navigation Source. ...........................................................................................SELECT CDI to VHF Nav
2. CDI .....................................................................................................................SET / VERIFY course
If HSI is installed:
3. Intercept Heading .....................................................ESTABLISH in HDG or ROL mode (if required)
If DG is installed (no HSI installed):
3. Final Approach Course ...................... ALIGN aircraft on final approach course using HDG mode
3a. HDG Bug (on DG) ......................................................................................... SET course
4. GMC 605 APR Key ......................................................................................................................PRESS
5. Bold or subdued font LOC and GS annunciations ...................................................VERIFY on GMC 605
6. Airspeed .........................................................................MAINTAIN 90 KIAS or greater (recommended)
If the Course Deviation Indicator (CDI) is greater than half scale deflection, the autopilot
will arm the LOC mode. The pilot must ensure that the current heading will result in a
capture of the selected course. If the CDI is within half scale deflection, the autopilot will
enter the capture mode when the APR key is pressed.
When the selected navigation source is an ILS, glideslope coupling is automatically
armed when the APR key is pressed. The glideslope cannot be captured until the
localizer is captured. The autopilot can capture the glideslope from above or below the
glideslope.
In aircraft with a DG installed and no HSI, LOC mode cannot be armed. HDG mode must
be used to align the aircraft on the approach course with less than half scale deflection
prior to pressing the APR key.
190-02011-11 Rev. 2
Tune and Identify an ILS station frequency
NOTE
GFC 600 Autopilot Installed in Piper PA-46-310P/350P
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