PFD Operation
SkyView HDX Pilot’s User Guide – Revision B 4-7
The roll scale contains tick marks at 10, 20, 30, and 60 degrees and larger white triangles at 0
and 45 degrees. The roll pointer (small yellow triangle on the bottom side of the roll scale)
points to your current bank angle. The roll scale will rotate 360 degrees. When the aircraft is
wings level, the roll pointer aligns with the roll scale zero point. The water line symbology also
indicates wings level flight.
The pitch scale has tick marks in 2.5-degree increments, and every 10-degree tick mark provides
a horizon line across the width of the screen. If the displayed pitch on the screen requires
adjustment to accurately depict the aircraft’s attitude in level cruise flight, use the Flight Angle
Pitch Adjust Page in the In Flight Setup Menu (IN FLIGHT SETUP MENU > FLIGHT ANGLE PITCH
ADJUST…). The pitch may be adjusted to a maximum of ±20 degrees.
NOTE: the Flight Angle Pitch Adjustment is only intended to adjust for minor
differences in the aircraft’s attitude at various weights or CG locations. It is not
intended to compensate for an ADAHRS which is improperly oriented with the
aircraft’s longitudinal axis.
The extended zero pitch line features heading markers every 30 degrees to help maintain
directional awareness when attention is being paid to the attitude indicator.
Attitude Rate Limit
SkyView HDX’s ADAHRS will operate normally at rotational rates of up to 150 degrees per
second in any axis. If the aircraft’s rotational rate exceeds 150 degrees per second – as can
happen in a well-developed spin or when performing aggressive aerobatic maneuvers – the PFD
page will annunciate “ATTITUDE RECOVERING”. During this time, SkyView HDX’s attitude
indication may be degraded and other instruments should be used to maintain safe flight.
After straight and level flight is restored for a few seconds, the ATTITUDE RECOVERING message
will disappear. Full performance of the attitude indication is restored. This requires no
additional action by you.
GPS Assist
In the event of airspeed loss (due to icing or other blockage) an accurate attitude is maintained
if there is an accurate GPS ground speed source. When in this mode, a magenta GPS ASSIST
message is displayed on the PFD and the ground speed is displayed below the indicated
airspeed (IAS). If the connectivity with the GPS fails while in GPS assist mode, the attitude
continues to be displayed, using the last known GPS ground speed as a reference. This mode is
flagged on the horizon with a yellow CROSS CHECK ATTITUDE message. In the very rare case
that this sequence of events occurs, the ADAHRS’ attitude accuracy is reduced; use other
references in the aircraft to cross-check against the SkyView display.
Note that due to a limitation of the SV-GPS-250/2020 hardware, it cannot be used for GPS
Assist above 415 knots ground speed if it is being used as the GPS source
To Next Page
Loading...
