Garmin G1000 NXi, Руководство пилота

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Garmin G1000 NXi Pilot’s Guide for the Cessna NAV III
190-02177-02 Rev. A 66
FLIGHT INSTRUMENTS
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
2.3 SYNTHETIC VISION TECHNOLOGY (SVT)
WARNING
:
Use appropriate primary systems for navigation, and for terrain, obstacle, and traffic avoidance.
SVT is intended as an aid to situational awareness only and may not provide either the accuracy or reliability
upon which to solely base decisions and/or plan maneuvers to avoid terrain, obstacles, or traffic.
NOTE:
Do not use the flight path marker as a flight director.
NOTE: Terrain alerting is not available north of 89º North latitude and south of 89º South latitude. This is due
to limitations present within the Terrain database and the system’s ability to process the data representing
the affected areas.
Garmin SVT ™ (Synthetic Vision Technology) is a visual enhancement to the system. SVT depicts a forward-
looking attitude display of the topography immediately in front of the aircraft. The field of view is 29 degrees to
the left and 35.5 degrees to the right. During reversionary mode, field of view is 21.5 degrees to the left and 35.5
degrees to the right. SVT information is shown on the Primary Flight Display (PFD), or on the Multifunction
Display (MFD) in Reversionary Mode. The depicted imagery is derived from the aircraft attitude, heading, GPS
three-dimensional position, and a 4.9 arc-second database of terrain, obstacles, and other relevant features. The
terrain data resolution of 4.9 arc-seconds, meaning the terrain elevation contours are stored in squares measuring
4.9 arc-seconds on each side, is required for the operation of SVT. Loss of any of the required data, including
temporary loss of the GPS signal, will cause SVT to be disabled (although the softkeys will still appear functional)
until the required data is restored.
The SVT terrain display shows land contours (colors are consistent with those of the topographical map display),
large water features, towers, and other obstacles over 200’ AGL that are included in the obstacle database. Wire
obstacles, such as power lines, may be also shown in the vicinity of airports; refer to the WireAware
™ discussion
later in this section for additional information. Cultural features on the ground such as roads, highways, railroad
tracks, cities, and state boundaries are not displayed even if those features are found on the navigation maps. The
terrain display also includes a north–south east–west grid with lines oriented with true north and spaced at one
arc-minute intervals to assist in orientation relative to the terrain.
The optional Terrain Awareness and Warning System (TAWS-B) or standard Terrain-SVT is integrated within
Garmin-SVT to provide visual and auditory alerts to indicate the presence of terrain and obstacle threats relevant
to the projected flight path. Terrain alerts are displayed in red and yellow shading on the PFD.
Garmin-SVT can be displayed on the Multifunction Display (MFD) in Reversionary Mode. If SVT is enabled
when switching to Reversionary Mode, it may take up to 30 seconds to be displayed. The standard, non-SVT PFD
display will be shown in the interim.
The terrain display is intended for situational awareness only. It may not provide the accuracy or fidelity on
which to base decisions and plan maneuvers to avoid terrain or obstacles. Navigation must not be predicated
solely upon the use of the Garmin-SVT or TAWS-B terrain or obstacle data displayed by the SVT.
The following SVT enhancements appear on the PFD:
• Flight Path Marker
• Horizon Heading Marks
• Airport Signs
• Runway Display
• Terrain Alerting
• Pathways • Traffic Display
• Obstacle Alerting including wire
obstacles