P/n 13772-108 1 of 24 cirrus design section 9 sr22 supplements pilot’s operating handbook and faa approved airplane flight manual supplement for s-tec system 55x autopilot w/ altitude selector/alerter when the s-tec system fifty five x (55x) autopilot with altitude selector / alerter is installed in...
2 of 24 p/n 13772-108 section 9 cirrus design supplements sr22 section 1 - general this airplane is equipped with an s-tec system 55x autopilot. The system 55x autopilot is a two-axis autopilot system. The system consists of a flight guidance programmer/computer, altitude encoder, altitude selector ...
P/n 13772-108 3 of 24 cirrus design section 9 sr22 supplements this installation does not utilize a cws (control wheel steering) switch or an autopilot master switch. • note • this installation utilizes the airplane’s roll trim actuator to affect steering changes. Therefore, the automatic trim funct...
4 of 24 p/n 13772-108 section 9 cirrus design supplements sr22 b. The autopilot must be disconnect during approach if course deviation exceeds 50%. The approach should only be continued by “hand-flying” the airplane. C. The autopilot must be disengaged at the decision height. D. 12 knot maximum cros...
P/n 13772-108 5 of 24 cirrus design section 9 sr22 supplements sr22_fm09_1502a figure - 1 system 55x altitude selector/alerter & autopilot computer revision 5: 08-15-07.
6 of 24 p/n 13772-108 section 9 cirrus design supplements sr22 section 3 - emergency procedures autopilot malfunction refer to electric trim/autopilot failure procedure in the sr22 poh. Do not reengage the autopilot until the malfunction has been identified and corrected. The autopilot may be discon...
P/n 13772-108 7 of 24 cirrus design section 9 sr22 supplements system failure and caution annunciations if any of the following failure annunciations occur at low altitude or during an actual instrument approach, disengage the autopilot, execute a go-around or missed approach as appropriate. Inform ...
8 of 24 p/n 13772-108 section 9 cirrus design supplements sr22 section 4 - normal procedures refer to section 7 – systems description for a description of the autopilot and altitude selector and their respective modes. The autopilot is integrated with the altitude selector/alerter and can be operate...
P/n 13772-108 9 of 24 cirrus design section 9 sr22 supplements c. Rotate altitude selector input knob to set baro to the nearest 0.1 inch hg. D. Push alt button to display alt sel. With a flashing sel annunciator, rotate the selector knob to input an altitude 300 to 400 feet lower or higher than the...
10 of 24 p/n 13772-108 section 9 cirrus design supplements sr22 c. Altitude hold ....................................................................Test 1.) depress alt button on autopilot programmer/computer. Note that alt annunciator comes on, vs annunciator goes out, and yoke does not move. D. O...
P/n 13772-108 11 of 24 cirrus design section 9 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 de...
12 of 24 p/n 13772-108 section 9 cirrus design 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 vertic...
P/n 13772-108 13 of 24 cirrus design section 9 sr22 supplements 4. Press dta again to accept altitude entry, the ent annunciator will go out and the sel annunciator will stop flashing and illuminate steady indicating that the system is in the ‘operate’ mode. • note • when the system is in the ‘opera...
14 of 24 p/n 13772-108 section 9 cirrus design supplements sr22 baro selection upon initial start-up, the altitude selector enters baro select immediately after the self-test if it is receiving a valid altitude signal. The setting can easily be entered at this time. At other times, it is necessary t...
P/n 13772-108 15 of 24 cirrus design section 9 sr22 supplements is set. As the airplane approaches within approximately 50 feet of the decision height, the alert will sound and the dh light will flash. As the airplane passes through approximately 50 feet beyond the decision height, the alert will so...
16 of 24 p/n 13772-108 section 9 cirrus design supplements sr22 intercept course in nav mode or twice to intercept course in gpss mode on the autopilot programmer/computer. When the on-course intercept turn begins the hdg mode will disengage and the annunciator will go out. During the intercept sequ...
P/n 13772-108 17 of 24 cirrus design section 9 sr22 supplements glideslope intercept and tracking 1. Begin with a reliable ils signal selected on the nav receiver. 2. Select autopilot nav and apr. Airplane must be within 50% needle deviation of localizer centerline. 3. Select alt mode. Airplane must...
18 of 24 p/n 13772-108 section 9 cirrus design supplements sr22 steering is accomplished by autopilot steering commands to the aileron trim motor and spring cartridge. The pitch computer receives altitude data from the altitude encoder pressure transducer plumbed into the static system, an accelerom...
P/n 13772-108 19 of 24 cirrus design section 9 sr22 supplements hdg (heading) mode – when hdg is selected, the autopilot will engage the hdg mode, fly the airplane to, and hold the heading set on the hsi. Subsequent heading changes are made using the hdg knob on the hsi. For smoothest transition to ...
20 of 24 p/n 13772-108 section 9 cirrus design supplements sr22 gs (glideslope) – the autopilot gs function will capture and track an ils glideslope. To arm the gs function, the following conditions must be met: (1) the nav receiver must be tuned to the appropriate ils frequency; (2) the glideslope ...
P/n 13772-108 21 of 24 cirrus design section 9 sr22 supplements altitude selector / alerter the altitude selector / alerter provides the autopilot with an altitude preselect function, a programmable vertical speed function, as well as provides altitude alert, decision height alert, and baro correcte...
22 of 24 p/n 13772-108 section 9 cirrus design supplements sr22 dta (data) – the data entry button is used to select data entry mode. The first time the dta button is pressed the selector will enter the data entry mode, the ent annunciator will come on, and the sel annunciator will flash to indicate...
P/n 13772-108 23 of 24 cirrus design section 9 sr22 supplements alt (altitude) – thealt button has two functions: altitude pre-select and altitude readout. Pre-select - when the alt button is pressed while the system is in the data entry (dta) mode the sel annunciator will flash and a new altitude c...
24 of 24 p/n 13772-108 section 9 cirrus design supplements sr22 dh (decision height) – the dh button allows entry and arming of altitude alerting at a set decision height. To set a dh, first enter the data (dta) entry (ent) mode, press the dh button, and rotate the selector knob to input the desired...
