Specifications

SECTION III
INSTRUMENTATION AND AVIONICS
MODEL 560
When the bank limit mode is engaged, the autopilot maximum bank angle is limited to 14 degrees.
When the mode is engaged, LOW will annunciate in the pushbutton. Low bank mode will be automatically
selected when climbing through 34,000 feet altitude, and will automatically cancel when descending through
33,750 feet. If heading mode is selected and then deselected while low bank is engaged low bank mode
will be disengaged and the engage light will extinguish during the time heading mode is disengaged, but low
bank mode will reengage and the LOW annunciator will re-illuminate when heading mode is reengaged.
The autopilot is normally disengaged in one of three ways: (1) depressing the AP/TRIM DISC switch
on either yoke, (2) electrically trimming the elevator trim system, or (3) depressing the go-around button on
either throttle. Actuation of the touch control steering button on the yoke will interrupt the pitch and roll
servos until the switch is released; the yaw damper will remain engaged. If the autopilot is disengaged by
any of the above three ways, a warning tone will sound for one second and the amber AUTOPILOT OFF
light will illuminate for one second. Any other disconnect will cause the warning horn to sound for one
second and the amber AUTOPILOT OFF light to stay illuminated. The amber light can be turned off by
holding the AP/TRIM DISC switch for two seconds, or by pressing the electric trim switch or the go-around
(GA) button on either throttle. The autopilot will also disengage if an overriding force (sustained torque) is
applied to the vertical or horizontal axis for a minimum preset time. Disconnect will be annunciated by the
one-second disconnect tone and illumination of the autopilot disconnect light, until the light is extinguished
by one of the above methods.
ALTITUDE ALERT
An altitude alerting system provides a visual indication of when the airplane is within 1000 feet of a
preselected altitude and normalizes when the airplane is within 250 feet of the preselected altitude. After
capture, the system will reactivate if the airplane departs more than 250 feet from the selected altitude. As
the airplane approaches within 1000 feet of the preselected altitude, which has been set into the lower right
corner of the multifunction display (MFD), by the knob on the lower right side of the display bezel, the color
of the altitude display will change to amber and the altitude warning horn will sound for one second. As the
airplane approaches to within 250 feet of the selected altitude, the display will change back to blue. If the
airplane again deviates from the selected altitude by more than 250 feet, the altitude display will change to
amber and the altitude alert horn will sound for one second. The display will remain amber until the airplane
returns to within 250 feet of the altitude, or until the altitude selection is reset.
The altitude alert function works in conjunction with altitude preselect (ASEL) mode, which is
described below. The only difference in operation of altitude alert function alone is that the flight director
and/or autopilot need not be engaged for altitude alert to function. The altitude alert annunciations are
controlled by the pertinent flight director, which is selected by the autopilot couple switch (AP XFER FD1/AP
XFER FD2), and are therefore based on the barometrically corrected altitude displayed on the same side of
the cockpit. If the altitude set knob is moved or the glide slope capture mode is active, the annunciations of
altitude alert will be cancelled.
I 3-38 Configuration AA 56OMB-01