190-00820-08 Rev. A
Cirrus Perspective
™
by Garmin – Pilot’s Guide for the SR20/SR22/SR22T
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
629
APPENDIX D
Normal (OBS not activated)
•
Automatic sequencing of waypoints
• Manual course change on HSI not possible
• Always navigates ‘TO’ the active waypoint
• Must be in this mode for final approach
course
OBS
• Manual sequencing - ‘holds’ on selected
waypoint
• Manually select course to waypoint from
HSI
• Indicates ‘TO’ or ‘FROM’ waypoint
• Cannot be set for final approach course or
published holding patterns
When OBS mode is active, the system allows the pilot to set a desired course to/from a waypoint using the
CRS/
BARO
Knob and HSI (much like a VOR).
The most common application for using the
OBS
Softkey is the missed approach. The system suspends
automatic waypoint sequencing (indicated by a ‘SUSP’ annunciation placed on the HSI) when the missed
approach point (MAP) is crossed. This prevents the system from automatically sequencing to the missed
approach holding point (MAHP). During this time, the
OBS
Softkey designation changes to
SUSP
. Selecting
the
SUSP
Softkey reactivates automatic waypoint sequencing. The
OBS
Softkey then resumes its normal
functionality.
w
hy
Might
the
P
erSPectiVe
™
S
ySteM
not
AutoMAticAlly
Sequence
to
the
neXt
wAyPoint
?
The system only sequences flight plan waypoints when automatic sequencing is enabled (i.e., no ‘OBS’ or
‘SUSP’ annunciation on the HSI). For automatic sequencing to occur, the aircraft must also cross the
bisector
of
the turn being navigated. The bisector is a line passing through the waypoint common to two flight plan legs
at an equal angle from each leg.
h
ow
cAn
A
wAyPoint
Be
SkiPPed
in
An
APProAch
,
A
dePArture
,
or
An
ArriVAl
?
The system allows the pilot to manually select any approach, departure, or arrival leg as the active leg of
the flight plan. This procedure is performed on the MFD from the Active Flight Plan Page by highlighting the
desired waypoint and selecting the
ACT LEG
Softkey then the
ENT
Key to approve the selection. The GPS
then provides navigation along the selected flight plan leg.
w
hen
doeS
turn
AnticiPAtion
Begin
?
The system smooths adjacent leg transitions based on a normal 15° bank angle (with the ability to roll up to
30°) and provides three pilot cues for turn anticipation:
• A waypoint alert (‘Next DTK ###° in # seconds’ or ‘Next HDG ###° in # seconds’) appears on the PFD 10
seconds before the turn point and flashes as it counts down to zero.
• A flashing turn advisory (‘Turn [right/left] to ###° in # seconds’) appears on the PFD 10 seconds before the
turn and flashes as it counts down to zero. ‘Turn [right/left] to ###° now’ or ‘Next [DTK/HDG] to ###° now’
is displayed when the pilot is to begin the turn and the HSI (GPS mode) automatically sequences to the next
DTK or HDG value.
• The To/From indicator on the HSI flips momentarily to indicate that the midpoint of the turn has been
crossed.
Summary of Contents for Cirrus Perspective SR20
Page 1: ... Cirrus SR20 SR22 SR22T Integrated Avionics System Pilot s Guide ...
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