Garmin GFC 600 Manual page 27

TRANSITION to ILS APPROACH from VERTICAL NAVIGATION
(Optional Feature)
1. Navigation Source ................................................................................................. SELECT CDI to GPS
2. Approach Procedure ................................................................. LOAD into the GPS navigator flight plan
3. CDI.....................................................................................................VERIFY desired track
4. Altitude Preselect................................................ADJUST to desired altitude below current altitude
5. GMC 605 VNV Key....................................................................................................PRESS
6. Bold or subdued font VPTH annunciation............................................................. VERIFY on GMC 605
7. GMC 605 APR Key....................................................................................................PRESS
8. Bold or subdued font LOC and GS annunciations................................................... VERIFY on GMC 605
9. Airspeed..........................................................................MAINTAIN 90 KIAS or greater (recommended)
If the altitude preselect is not set at least 75 FT below the current aircraft altitude, the
autopilot will not capture the vertical navigation path.
The autopilot can capture the vertical navigation path from above or below.
Under certain display conditions, VPTH and GS armed modes are combined into a single
"GS/V" annunciation.
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.
190-02011-11 Rev. 2
(VERIFY aircraft flight path will intercept the vertical navigation profile)
NOTE
GFC 600 Autopilot Installed in Piper PA-46-310P/350P
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