Garmin G1000 NXi Pilot’s Guide for the Cessna NAV III
190-02177-02 Rev. A
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
458
ADDITIONAL FEATURES
As the aircraft deviates further from the normal attitude and/or airspeed, the force increases (up to an established
maximum) to encourage control movement in the direction necessary to return to the normal attitude and/
or airspeed range. For all conditions except for high airspeed, once maximum force is reached, force remains
constant up to the maximum engagement limit. Above the maximum engagement limit, forces are no longer
applied. There is no maximum engagement limit associated with high airspeed.
When ESP has been engaged for more than ten seconds (cumulative; not necessarily consecutive seconds) of a
20-second interval, the autopilot is automatically engaged with the flight director in Level Mode, bringing the aircraft
into level flight. An aural “Engaging Autopilot” alert is played and the flight director mode annunciation will indicate
‘LVL’ for vertical and lateral modes. Automatic Level Mode will engage in all flight modes with the exception of Low
Airspeed Mode. The Autopilot will not automatically engage into Level Mode when Low Airspeed Protection ESP
is engaged.
In the event of unexpected autopilot behavior, the pilot can interrupt ESP by pushing and holding either the
Control Wheel Steering (
CWS
) or Autopilot Disconnect (
AP DISC
) switch. Upon releasing the
CWS
or
AP
DISC
switch, ESP force will again be applied, provided aircraft attitude and/or airspeed are within their respective
engagement limits. ESP can also be overridden by overpowering the servo’s mechanical torque limit. Although the
pilot may physically overpower the ESP forces prior to the ‘Engaging Autopilot’ message, the pilot must recognize
when the autopilot is engaged and not attempt to physically override the autopilot.
If flight maneuvers exceeding the normal ESP envelope are intended, the feature can be disabled. ESP can be
enabled or disabled on the ‘Aux - System Setup’ Page on the MFD.
Enabling/Disabling ESP:
1)
Turn the large
FMS
Knob to select the Aux Page Group.
2)
Turn the small
FMS
Knob
to select the ‘Aux - System Setup’ Page.
3)
If necessary, press the
SETUP 2
Softkey to display the ‘Aux-System Setup 2’ Page. If the ‘Aux - System Setup 2’ is
already displayed, proceed to step 4.
4)
Push the
FMS
Knob to activate the cursor.
5)
Turn the large
FMS
Knob to place the cursor in the Stability & Protection field.
6)
Turn the small
FMS
Knob
to select ‘Enabled’ or ‘Disabled’.
7)
Push the
FMS
Knob to remove the cursor.
ESP is automatically enabled on system power on.
ROLL ENGAGEMENT
Roll Limit Indicators are displayed on the roll scale at 45° right and left, indicating where ESP will engage (see
following figure). As roll attitude exceeds 45°, ESP will engage and the on-side Roll Limit Indicator will move
to 30°, as shown in the following figure. The Roll Limit Indicator is now showing where ESP will disengage as
roll attitude decreases.
