24 of 30
P/N 13772-135
Section 9
Cirrus Design
Supplements
SR22 / SR22T
Low Pitch Protection Limits
Engagement Limit: ................................................................ -15.5°
Maximum Stick Force attained at:......................................... -20.5°
Disengagement Threshold (Zero Stick Force) ...................... -10.5°
High Airspeed Mode
To protect against an overspeed condition, the High Airspeed Mode
uses engagement limits, thresholds, and stick forces similar to those
used for the pitch and roll modes, but is instead triggered by airspeed
and controlled by pitch attitude. When the aircraft reaches the ESP
engagement limit, the system commands the pitch servo to apply a
supplemental stick force back toward the nominal airspeed range.
• Note •
For turbocharged equipped aircraft, V
ne
reduces above
17,500 ft PA to follow a Mach limit of 0.42.
At high altitudes Mach number determines the threshold.
Nose Down Pitch Angle
-0°
-10°
-15°
-20°
-25°
-5°
No
se
U
p
Su
pp
le
me
nt
al
S
tick
F
orce
Always Protected
Only Protected after cross-
ing turn-on threshold
SR
22
_F
M
09
_3
42
6
Revision 03: 12-14-10
