Garmin G5 Pilot's Manual page 80

AFCS
3.1.14.5 GPS APPROACHES WITHOUT VERTICAL GUIDANCE
NOTE: The selected navigation receiver must have an active GPS course for
the flight director to enter Approach Mode.
Press the NAV Key to arm/activate GPS (LNAV only) lateral mode. The lateral
mode acquires and tracks the selected navigation source, depending on the loaded
approach. Press NAV when the CDI is greater than one dot to arm the selected mode
(annunciated in white). Press NAV when the CDI deviation is less than one dot to
activate, capture and track the selected navigation source.
Example Control
NAV Key Approach, GPS
LNAV
3.1.14.6 GPS APPROACH WITHOUT VERTICAL GUIDANCE
A GPS approach without vertical guidance (LNAV) is flown using GPS NAV Mode.
Selecting a GPS Approach without vertical guidance:
1) EXTERNAL NAVIGATOR: Ensure a GPS approach without vertical guidance
(LNAV) is loaded into the active flight plan.
2) EXTERNAL NAVIGATOR: Ensure the 'GPS' indication is showing in the
lower-left corner
3) EXTERNAL NAVIGATOR: Select and activate the GPS approach using the
PROC Key.
4) Press the NAV Key.
5) Adjust the aircraft's pitch axis as required.
68
G5 Electronic Flight Instrument Pilot's Guide for Non-Certified Aircraft
Table 3-8 Approach without Vertical Guidance
Lateral Mode
. If not, press the CDI Key.
Annunciation
Captures and tracks
GPS the selected navigation
source (GPS)
Description
190-02072-00 Rev. G