Garmin G1000 Pilot's Manual page 301

NAVIGATION (GPS, VOR, LOC, BC) MODE
The selected navigation receiver must have a valid signal (VOR, LOC) or active GPS course in order for
NOTE:
the flight director to enter Navigation or Approach Mode.
When intercepting a flight plan leg, the flight director will give commands to capture the active leg
NOTE:
at approximately a 45° angle to the track between the waypoints defining the active leg. The flight director
will not give commands fly to the starting waypoint of the active leg.
Pressing the CWS Button and hand-flying the aircraft does not change the Selected Course while in
NOTE:
Navigation or Approach Mode. The autopilot guides the aircraft back to the Selected Course (or GPS flight
plan) when the CWS Button is released.
When making a backcourse approach, set the Selected Course to the localizer front course.
NOTE:
Pressing the NAV Key activates Navigation Mode. Navigation Mode acquires and tracks the selected
navigation receiver on the HSI (GPS, VOR, or LOC). The mode annunciation in the AFCS Status Box indicates
the selected navigation receiver. The flight director follows GPS roll steering commands when the HSI is in
GPS mode, and creates roll steering commands from the Selected Course and deviation when the HSI is in
VOR or LOC mode. The Selected Course is controlled using the CRS Knob.
Navigation Mode can be used to fly non-precision GPS and LOC approaches where glideslope tracking is
not required. Backcourse Navigation Mode is selected when the localizer front course is greater than 105°
from the aircraft heading. The annunciation 'BC' in the AFCS Status Box indicates Backcourse Navigation
Mode.
Command Bars
Indicate Left
Turn to Track
GPS Course and
Climb to Intercept
Selected Altitude
GPS is Active
Navigation
Receiver on HSI
190-00592-02 Rev. A
Flight Level
GPS Navigation
Change
Mode Active
Mode Active
Figure 7-14 Navigation Mode
Garmin G1000 Pilot's Guide for the Diamond DA40/40F
AUTOMATIC FLIGHT CONTROL SYSTEM
Altitude Hold
Mode Armed
Selected Course
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