8
P/N 11934-002
Section 9
Cirrus Design
Supplements
SR20
Figure - 1
Section 1 - General
This airplane is equipped with an S-TEC System Twenty Autopilot.
This single-axis autopilot system is a rate-based system, deriving roll
axis control inputs from its integral electric turn coordinator. The
programmer, computer/amplifier, and annunciators are contained
entirely within the turn coordinator case. Pilot inputs to the autopilot
are made through the multi-function control knob at the upper left
corner of the turn coordinator. The control knob provides mode
selection, disengage, and turn command functions. The autopilot
drives the aileron trim motor and spring cartridge to control airplane
roll. The S-Tec System Twenty Autopilot features:
• Roll Stabilization.
• Turn Command.
• NAV/LOC/GPS tracking; HI and LO sensitivity.
R
L
SR20_FM09_1052
N
O
P
I T
C H I
N F O R M
A T
I O
N
P
U
S
H
/H
O
L D
A P D
IS
C
LO
HI
TURN COORDINATOR
2 MIN
UP
TRIM
DN
RDY
ALT
TRK
HD
ST
R
L
Turn Coordinator
Revision 1: 12-07-04
Summary of Contents for SR20
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