IFD500 Series Pilot Guide
2-22 SVS Subsystem
Extreme Attitude Depiction
At extreme pitch/flight path angles, both positive and negative,
the horizon line will detach from the terrain (or traditional
blue/brown AI) such that there will always be a strip of blue/sky or
brown/ground visible to aid in initiating unusual attitude
recoveries.
High/low pitch chevrons are also displayed in those extreme
pitch/flight path angle situations and point toward the horizon as
well.
The following SynVis-related failure conditions result in an
automatic transition from the SynVis scene to the traditional
blue/brown AI:
Loss of GPS position or track
Inability to convert GPS altitude to MSL altitude
Loss of pitch or roll data
Invalid or frozen terrain database data
Movement beyond the latitude limits of SynVis (valid
within the range 60°S latitude to 75°N latitude)
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