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of needle movement.
f. Autopilot Disconnect Tests:
1.) Press Pilot A/P DISC/Trim Switch (control yoke). Note that
the autopilot disengages. Move control yoke to confirm
that pitch and roll control is free with no control restriction
or binding.
2.) Repeat step using Copilot A/P DISC/Trim Switch.
In-Flight Procedures
1. Autopilot RDY Light ......................................................CHECK ON
2. Trim airplane for existing flight conditions.
3. Engage desired mode by pressing mode selector button on
autopilot programmer/computer.
Heading Mode
1. Begin by selecting a heading on HSI within 10° of the current
airplane heading.
2. Press HDG button on autopilot programmer/computer. The HDG
annunciator will illuminate and the airplane will turn to the selected
heading.
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SR22 Supplements
3. Use HSI HDG bug to make heading changes as desired.
Autopilot Altitude Hold Mode
1. Manually fly the airplane to the desired altitude and level off.
• Note •
For smoothest transition to altitude hold, the airplane rate of
climb or descent should be less than 100 FPM when Altitude
Hold is selected.
2. Press HDG or NAV to engage a roll mode. The associated
annunciator will illuminate.
• Note •
A roll mode must be engaged prior to engaging a pitch mode.
3. Press the ALT button on the autopilot programmer/computer. The
ALT annunciator will illuminate indicating that the mode is
engaged and the autopilot will hold the present altitude.
• Note •
Manually flying the airplane off the selected altitude will not
disengage altitude hold and the autopilot will command a pitch
change to recapture the altitude when the control input is
released.
4. Altitude can be synchronized to another altitude by rotating the VS
knob on the programmer/computer. Clockwise rotation will
increase and counterclockwise rotation will decrease altitude 20
feet for each ‘click.’ The maximum adjustment is ±360 feet.
Adjustments greater than 360 feet can be made by selecting VS
mode and flying the airplane to the new altitude and then reengaging
ALT mode.
Autopilot Vertical Speed Mode
1. Begin by manually establishing the desired vertical speed.
2. Press HDG or NAV to engage a roll mode. The associated
annunciator will illuminate.
• Note •
A roll mode must be engaged prior to engaging a pitch mode.
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Supplements SR22
3. Press the VS button on the autopilot programmer/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 •
The vertical speed is displayed in 100-foot increments at the
far right of the programmer/computer window next to the VS
annunciation. A plus (+) value indicates climb and a negative
or minus (-) value indicates descent.
4. Vertical speed can be adjusted by rotating the VS knob on the
programmer/computer. Clockwise rotation increases and
counterclockwise rotation decreases rate of climb (or descent) 100
FPM for each ‘click.’ The maximum adjustment is ±1600 FPM.
• Note •
A flashing VS mode annunciator indicates excessive error
between actual vertical speed and the selected vertical speed
(usually in climb). The pilot should adjust power or reduce the
commanded vertical speed as appropriate to remove the
error.
Altitude Pre-Select
The altitude selector may be used to set up an altitude and vertical
speed for intercept and capture. The altitude can be above or below
the current altitude and the vertical speed chosen should be
appropriate (climb or descent) for the altitude. Once selected, the
altitude and vertical speed can be coupled to the autopilot by pressing
and holding the VS button and then pressing the ALT button.
1. Press altitude selector DTA button to enter the data entry (ENT)
mode.
2. Press altitude selector BARO button and adjust baro setting as
necessary.
3. Press the ALT button to enter altitude select mode. The SEL
annunciator will flash. Use the altitude selector knob to input the
desired altitude in thousands of feet; for example, 5500 feet is
entered as 5.5 and 10,500 is entered as 10.5.
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Cirrus Design Section 9
SR22 Supplements
4. Press DTA again to accept altitude entry, the ENT annunciator will
　
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