CIRRUS DESIGN SR20, Pilot Operating Handbook

Page: 386 / 508

14 of 14 P/N 11934-S19
Section 9 Cirrus Design
Supplements SR20
and the pilot should manually trim the airplane in the direction
indicated. If the pilot fails to trim the airplane, the TRIM UP or TRIM
DN light, as applicable, will flash. Both light are out if the airplane is in
trim.
Flag Window – A red flag indicates insufficient electrical power (less
than 24 VDC) to the Turn Coordinator rate gyro. The turn coordinator
has its own backup power supply.
Refer to basic Handbook .
GPSS and HDG mode selection for the GPSS converter is
accomplished through the GPSS/HDG switch located next to the
system annunciators on the instrument panel.
Refer to Figure 1 for an
illustration of the switch.
HDG – When HDG is selected on the GPSS/HDG switch, the green
light below the HDG label will illuminate. In this mode, the autopilot is
coupled to the HSI heading error outputs and the autopilot will respond
to inputs made on the HSI heading (HDG) or course (OBS) controls.
GPSS – When GPSS is selected on the GPSS/HDG switch, the green
light above the GPSS label will illuminate. In this mode, the autopilot is
coupled to the GPS1 roll steering output and, if the autopilot is in
heading (HD) mode and GPS1 has a valid waypoint of flight plan
active, the system will automatically track to the next waypoint.
Revision 1: 12-07-04