Cirrus Perspective
™
by Garmin – Pilot’s Guide for the SR20/SR22/SR22T
190-00820-08 Rev. A
458
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
LOC Approach Mode allows the autopilot to fly a LOC/ILS approach with a glideslope. When LOC Approach
Mode is armed, Glideslope Mode is also armed automatically. LOC captures are inhibited if the difference
between aircraft heading and localizer course exceeds 105°.
Selecting LOC Approach Mode:
1)
Ensure a valid localizer frequency is tuned.
2)
Ensure that LOC is the selected navigation source (use the
CDI
Softkey to cycle through navigation sources if
necessary).
3)
Press the
APR
Key.
Or
:
1)
Ensure that GPS is the selected navigation source (use the
CDI
Softkey to cycle through navigation sources if
necessary).
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
c
hAnging
the
S
elected
c
ourSe
If the navigation source is VOR or localizer, or OBS Mode has been enabled when using GPS, the Selected
Course is controlled using the
CRS
Knob.
LEVEL MODE
NOTE:
Pressing the LVL Key will NOT engage the autopilot while the Stall Warning System is activated.
Likewise, the autopilot will disengage if the Stall Warning System is activated while in LVL mode.
Level Mode is coupled pitch and roll modes and is annunciated as both the vertical and lateral modes when
active. Pressing the
LVL
Key engages the autopilot (if the autopilot is disengaged and the aircraft is within the
autopilot engagement limitations) in level vertical and lateral modes. Level Mode does not track altitude or
heading. When the
LVL
Key is pressed all armed and active modes are cancelled and the autopilot and flight
director revert to LVL mode for pitch and roll (Figure 7-26). While in level mode, all other modes are available
by pressing the corresponding button.
Summary of Contents for Cirrus Perspective SR20
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