Garmin G1000 Pilot’s Guide for the Diamond DA42NG
190-00962-02 Rev. A
454
AUTOMATIC FLIGHT CONTROL SYSTEM
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL FEA
TURES
APPENDICES
INDEX
2)
Ensure a LOC/ILS approach is loaded into the active flight plan.
3)
Ensure the corresponding LOC frequency is tuned.
4)
Press the
APR
Key.
If the following occurs, the flight director reverts to Roll Hold Mode (wings rolled level):
• Approach Mode is active and a Vectors-To-Final is activated
• Approach Mode is active and Navigation source is manually switched
• During a LOC/ILS approach, GPS Navigation Mode is active and the FAF is crossed after the automatic
navigation source switch from GPS to LOC
CHANGING THE SELECTED COURSE
The Selected Course is controlled using the
CRS
Knob (while in VOR, LOC, or OBS Mode). Pressing the
CWS
Button and hand-flying the aircraft does not change the Selected Course while in Approach Mode.
The autopilot guides the aircraft back to the Selected Course (or GPS flight plan) when the
CWS
Button is
released.
INTERCEPTING AND FLYING A DME ARC
The AFCS will intercept and track a DME arc that is part of the active flight plan provided that GPS
Navigation Mode is engaged, GPS is the active navigation source on the CDI, and the DME arc segment is
the active flight plan leg. It is important to note that automatic navigation of DME arcs is based on GPS.
Thus, even if the APR key is pressed and LOC or VOR Approach Mode is armed prior to reaching the Initial
Approach Fix (IAF), Approach Mode will not activate until the arc segment is completed.
If the pilot decides to intercept the arc at a location other than the published IAF (i.e. ATC provides vectors
to intercept the arc) and subsequently selects Heading Mode or Roll Mode, the AFCS will not automatically
intercept or track the arc unless the pilot activates the arc leg of the flight plan and arms GPS Navigation
Mode. The AFCS will not intercept and fly a DME arc before reaching an IAF that defines the beginning of the
arc segment. Likewise, if at any point while established on the DME arc the pilot deselects GPS Navigation
Mode, the AFCS will no longer track the arc.
LEVEL MODE (LVL)
Level (LVL) mode becomes active only as a function of Electronic Stability and Protection (ESP). Refer to the
Additional Features section for a detailed discussion of the optional ESP feature.
When the normal flight envelope thresholds have been exceeded for more than 50% of the last 20 seconds,
Level mode is activated. The autopilot will engage and provide input to bring the aircraft back into straight
and level flight based on zero degrees roll angle and zero feet per minute vertical speed. An aural “ENGAGING
AUTOPILOT” alert sounds and the lateral and vertical flight director annunciations will display “LVL”. The
AFCS will remain in Level mode until the pilot selects another mode.
Figure 7-27 Level Mode
