CIRRUS DESIGN SR20, Pilot Operating Handbook, Page: 195 / 508

P/N 11934-003 7-25
Cirrus Design Section 7
SR20 Airplane Description
Horizontal Situation Indicator (HSI)
Heading Data
Magnetic heading is represented in boxed numeric form at the top of
the compass rose. Heading rate (Rate of Turn Indicator) takes the
form of a blue arcing arrow that begins behind the magnetic heading
indicator and moves left or right accordingly. Graduations are provided
on the rate-of-turn indicator scale to indicate half and full standard-rate
turns. A heading bug is also provided on the compass rose.
Navigation Data
Navigation data on the PFD takes several forms. A course deviation
indicator (CDI) is always provided on the HSI and a bearing pointer
can be optionally selected for display on the HSI by the pilot. Controls
for selecting the source of navigation data, selecting the display format
of the navigation data, and for selecting the type of compass rose and
moving map to be displayed are along the left side of the PFD. The
active flight plan contained in the GPS Nav/Com unit selected as the
primary navigation source (Nav) can be optionally selected for display
on the HSI as well as the desired range of the optionally selectable
moving map display. If a localizer or ILS frequency is tuned and
captured in the GPS Nav/Com selected as the Nav source, a vertical
deviation indicator (VDI) and horizontal deviation indicator (HDI) are
automatically displayed on the ADI.
• Note •
In the event glide slope or localizer signals are lost, the HDI
and/or VDI will be displayed as red-“X”s to indicate loss of
signal. The red-“X”’ed indicator will only be removed if the
signal is regained, the Nav Source is changed on the PFD, or
if the GPS Nav/Com is retuned to another frequency.
Appropriate action must be taken by the pilot if on an
approach.
The Avidyne system software version for this installation is
530-00123-XXX or 530-00159-XXX, where X can be any digit
from 0 to 9.
For a detailed description of the PFD, refer to the Avidyne FlightMax
Entegra-Series PFD Pilot’s Guide , P/N 600-00081-000, Revision 03,
or latest revision.
Revision A5