ALTITUDE HOLD MODE
1. Manually y the airplane to the desired altitude and level off.
2. Press HDG or NAV to engage a roll mode. The associated annunciation
will be shown on the G1000 and the autopilot computer.
3. Press the ALT button on the autopilot computer. The
ALT annunciation
will be shown on the G1000 and the autopilot computer. The autopilot will
hold the present altitude.
4. The set altitude can be modied by rotating the VS/Modier knob on the
autopilot computer. Clockwise rotation will increase and counterclockwise
rotation will decrease altitude approximately 20 feet for each “click.” The
maximum adjustment is ±360 feet. Adjustments greater than 360 feet can
be made by selecting VS mode and ying the airplane to the new altitude,
then re-engaging ALT mode at the desired altitude.
VERTICAL SPEED MODE
1. Begin by manually establishing the airplane at the desired vertical speed.
2. Press HDG or NAV to engage a roll mode. The associated annunciation
will be shown on the G1000 and autopilot computer.
3. Press the VS button on the autopilot computer to engage the vertical
speed mode. When the mode is engaged, the autopilot will synchronize to
and hold the vertical speed at the time the mode was engaged.
NOTE: For the smoothest transition to altitude hold, the airplane rate
of climb or descent should be less than 100 FPM when “Altitude Hold” is
selected.
NOTE: A roll mode must be engaged prior to engaging a pitch mode.
NOTE: Do not manually y the airplane off the selected altitude, as
the autopilot will not disengage altitude hold mode and the autopilot will
command a pitch change to recapture the altitude when the control input
is released. Also, the automatic trim will run while manually ying off the
selected altitude, thus causing the aircraft to be in an out-of-trim condition
when the autopilot is disengaged or the controls are released.
NOTE: The vertical speed is displayed in 100-foot increments at the far
right of the autopilot computer display next to the VS annunciation. A
plus
(+) value indicates a climb and a negative (-) value indicates a descent.
NOTE: A roll mode must be engaged prior to engaging a pitch mode.