Garmin G1000H Bell 407GX Pilot's Guide - Page 384

ADDITIONAL FEATURES 8.1 SYNTHETIC VISION SYSTEM (SVS) WARNING: Use appropriate primary systems for navigation, and for terrain, obstacle, and traffic avoidance. SVS 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. The Synthetic Vision System (SVS) is a visual enhancement to the G1000H Integrated Flight Deck. SVS depicts a forward-looking attitude display of the topography immediately in front of the aircraft. The field of view is 30 degrees to the left and 35 degrees to the right. SVS information is shown on the Primary Flight Display (PFD), or on the Multifunction Display (MFD) in Reversionary Mode (Figure 8‑120). The depicted imagery is derived from the aircraft attitude, heading, GPS three-dimensional position, and a six arc-second database of terrain, obstacles, and other relevant features. The terrain data resolution of six arc-seconds, meaning that the terrain elevation contours are stored in squares measuring six arc-seconds on each side, is required for the operation of SVS. Loss of any of the required data, including temporary loss of the GPS signal, will cause SVS to be disabled until the required data is restored. The SVS terrain display shows land contours, large water features, towers, and other obstacles over 200' AGL that are included in the obstacle database. 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 MFD map. 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 colors used to display the terrain elevation contours are similar to that of the topo map display. The Helicopter Terrain Awareness and Warning System (HTAWS) is integrated within SVS 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. 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 HTAWS terrain or obstacle data displayed by the SVS. The following SVS enhancements appear on the PFD: • Pathways • Airport Signs • Flight Path Marker • Runway Display • Horizon Heading Marks • Terrain Alerting • Traffic Display • Obstacle Alerting 372 Garmin G1000H™ Pilot's Guide for the Bell 407GX 190-01255-00 Rev. A