SkyView SE
Pilot’s User Guide
- Revision B
4-13
ADAHRS (Flight Instrument) Redundancy and Cross-Checking
SkyView SE systems support multiple SV-ADAHRS-200/201 modules for redundancy and
manage failure scenarios by automatically switching to backup modules should an ADAHRS
completely fail.
Additionally, in the event that multiple ADAHRS disagree, the display will annunciate this with
an on-screen alert that calls out which parameter(s) are not the same on all ADAHRS.
Parameters that are continuously cross-checked include attitude (pitch and roll), magnetic
heading, G Meter, turn coordinator (slip/skid ball), airspeed, and altitude.
Figure 26
–
ADAHRS Cross-Checking Disagreement
Once SkyView SE has annunciated a cross-check comparison problem, press COMPARE to see
both ADAHRS side-by side. The ADAHRS that was previously displayed on the PFD is labeled
“ACTIVE”, while the one that was not previously being displayed
- but which was being used as
the cross-check reference
–
will be labeled as “STANDBY”. Additionally, the labels “PRIMARY”
and “ALTERNATE” designate which ADAHRS is normally displayed when both are in agreement
and neither is disabled.
