Tecnam P2010 - Roll Mode

AFMS N°D07 FOR GARMIN GFC700 AUTOPILOT AND VARIABLE PITCH PROPELLER EQUIPPED
AEROPLANES
Page APV1-19
Section 1 – General-
AUTOPILOT FUNCTIONS
Ed. 1, Rev.0
When the aircraft reaches the engagement limit, ESP ramps up the servo torque command to
adjust the aircraft back toward zero pitch attitude. ESP uses a rate command to drive the atti-
tude back to the nominal range and does not try to control to a specific attitude. As the pitch at-
titude returns to the nominal range, the torque and pitch rate are reduced until the aircraft reaches
the disengagement limit at which time ESP turns off. The disengagement threshold is sized so
that the transition from ESP being active to being inactive is transparent to the pilot (no tran-
sient when ESP turns off).
If, when ESP engages, the aircraft continues to pitch away from the nominal attitude range the
torque command will increase with increasing pitch deviation. Above the upper disengage-
ment limit specified in the certification gain file ESP will be disabled.
13.1.2 ROLL MODE
Roll mode is similar to pitch mode and also utilizes configurable gain file parameters to de-
fine engagement and disengagement limits as well as the speed and torque curves.
The engagement and disengagement attitude limits are displayed with double hash marks
on the roll indicator when ESP is available and /or active. The lack of double hash marks
above 200 ft AGL (when autopilot is not connected) is a clear indication that ESP is not
available.
Values for the symmetric roll attitude limits are as follows:
Engagement low threshold: +/- 45°
Engagement upper threshold: +/- 75°
Lower disengage threshold: +/- 30°
Electronic stability and protection action starts at the predetermined bank angle. Since
crossing this bank angle results in a change in aircraft stability (and therefore handling
characteristics) indications of this boundary are provided to the pilot.
When ESP is inactive (roll attitude within nominal limits) only the engagement limits
are displayed in order to reduce clutter on the roll indicator. As the bank.