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  4. Fifty Five X
  5. Pilot Operating Handbook

S-TEC Fifty Five X Pilot Operating Handbook

Summary of Fifty Five X

  • Page 1

    D e c r in c r hdg nav apr rev trim alt gs vs r d y c w s f a i l g p s s vs x 100 f f x ifty ive.

  • Page 2

    3rd ed. Sep 30, 06 i s–tec list of effective pages * asterisk indicates pages changed, added, or deleted by current revision. Page no. Issue * 3-7 apr 15, 07 3-11 mar 15, 07 * 4-3 apr 15, 07 record of revisions retain this record in front of handbook. Upon receipt of a revision, insert changes and c...

  • Page 3

    Ii 3rd ed. Sep 30, 06 s–tec page intentionally blank.

  • Page 4: Table of Contents

    3rd ed. Sep 30, 06 iii s–tec table of contents sec. Pg. 1 overview...........................................................................................................1–1 1.1 document organization....................................................................1–3 1.2 purpose..................

  • Page 5

    Iv 3rd ed. Sep 30, 06 s–tec 3.2 precision approach procedures.....................................................3–12 3.2.1 straight-in ils approach....................................................3–12 3.2.1.1 software revision 5 and above......................3–12 3.2.1.2 software revision 4 an...

  • Page 6: List of Figures

    3rd ed. Sep 30, 06 v s–tec list of figures fig. Pg. 1–1 system fifty five x block diagram..............................................................1–5 2–1 ap display, all annunciations at power-up................................................2–4 2–2 ap display, software revision number...........

  • Page 7

    Vi 3rd ed. Sep 30, 06 s–tec 3–11 ap display, hdg and alt hold modes engaged...................................3–8 3–12 ap display, hdg and vs modes engaged.................................................3–9 3–13 ap display, cws mode engaged..............................................................

  • Page 8: List of Tables

    3rd ed. Sep 30, 06 vii s–tec 3–38 ap master switch, fd/ap mode engaged................................................3–31 3–39 fd display, fd/ap mode engaged...........................................................3–32 3–40 ap master switch, fd mode engaged...........................................

  • Page 9

    Viii 3rd ed. Sep 30, 06 s–tec page intentionally blank.

  • Page 10: Section 1

    3rd ed. Sep 30, 06 1-1 s–tec section 1 overview.

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    1-2 3rd ed. Sep 30, 06 s–tec page intentionally blank.

  • Page 12

    3rd ed. Sep 30, 06 1-3 s–tec 1.1 document organization section 1 overview section 2 pre-flight procedures section 3 in-flight procedures section 4 operating parameters section 5 glossary 1.2 purpose this pilot's operating handbook (poh) provides pre-flight and in-flight operating procedures for the ...

  • Page 13

    1-4 3rd ed. Sep 30, 06 s–tec 1.4 modes of operation 1.4.1 roll axis control heading (hdg) mode used to turn onto a selected heading and hold it navigation (nav) mode used to intercept and track a vor course navigation approach (nav apr) mode used to intercept and track a loc and vor front course inb...

  • Page 14

    3rd ed. Sep 30, 06 1-5 s–tec fig. 1-1. System fifty five x block diagram.

  • Page 15

    1-6 3rd ed. Sep 30, 06 s–tec page intentionally blank.

  • Page 16: Section 2

    3rd ed. Sep 30, 06 2-1 s–tec section 2 pre-flight procedures.

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    2-2 3rd ed. Sep 30, 06 s–tec page intentionally blank.

  • Page 18

    3rd ed. Sep 30, 06 2-3 s–tec 2.1 power-up test perform the actions shown in table 2-1. For each action, verify the corresponding response where applicable. Table 2-1. Power-up test action response 1. Set yaw damper master switch to off position (if installed). ------ 2. Set trim master switch to off...

  • Page 19

    2-4 3rd ed. Sep 30, 06 s–tec fig. 2-1. Ap display, all annunciations at power-up fig. 2-2. Ap display, software revision number fig. 2-3. Ap display, ready for operation.

  • Page 20

    3rd ed. Sep 30, 06 2-5 s–tec fig. 2-4. Ap display, programmer/computer failure fig. 2-5. Ap display, turn coordinator failure.

  • Page 21

    2-6 3rd ed. Sep 30, 06 s–tec action response 1. Move a/c control wheel left and right, to sense its freedom of movement about roll axis. ------ 2. Set heading bug under lubber line. ------ 3. Press hdg mode selector switch to engage heading mode. Hdg annunciation alone appears on ap display, as show...

  • Page 22

    3rd ed. Sep 30, 06 2-7 s–tec fig. 2-6. Ap display, hdg mode engaged (pre-flight) fig. 2-7. Ap display, hdg and alt hold modes engaged (pre-flight).

  • Page 23

    2-8 3rd ed. Sep 30, 06 s–tec table 2-2. Pre-flight test (continued from page 2-6) action response 11. Press/hold cws switch to arm control wheel steering mode. Cws, vs, and +0 (or ±1) annunciations only appear on ap display, as shown in fig. 2-8. 12. Move a/c control wheel left and right. A/c contro...

  • Page 24

    3rd ed. Sep 30, 06 2-9 s–tec fig. 2-8. Ap display, cws mode armed or engaged, 0 fpm (pre-flight) fig. 2-9. Ap display, cws mode engaged, 500 fpm climbing (pre-flight) fig. 2-10. Ap display, cws mode engaged, 500 fpm descending (pre-flight).

  • Page 25

    2-10 3rd ed. Sep 30, 06 s–tec action response 20. Select local vor frequency on navigation receiver. ------ note: proceed to either step 21 (hsi) or step 26 (dg). 21. Turn course pointer until cdi needle is centered. ------ 22. Press nav mode selector switch to engage navigation mode. Nav, vs, and +...

  • Page 26

    3rd ed. Sep 30, 06 2-11 s–tec fig. 2-11. Ap display, nav and vs modes engaged, 0 fpm (pre-flight).

  • Page 27

    2-12 3rd ed. Sep 30, 06 s–tec table 2-2. Pre-flight test (continued from page 2-10) action response 29. Turn obs until cdi needle is centered. A/c control wheel stops. 30. Press hdg mode selector switch to engage heading mode. Hdg, vs, and +0 annunciations only appear on ap display. 31. Move a/c con...

  • Page 28

    3rd ed. Sep 30, 06 2-13 s–tec fig. 2-12. Ap display, manual trim prompts (pre-flight) a. Hdg and vs modes engaged, 0 fpm, trim up required b. Hdg and vs modes engaged, 0 fpm, trim dn required.

  • Page 29

    2-14 3rd ed. Sep 30, 06 s–tec table 2-2. Pre-flight test (continued from page 2-12) action response 35. Move a/c control wheel as far forward as possible. After 3 seconds, trim ∧ annunciation appears on ap display as shown in fig. 2-13a, and elevator trim wheel begins to run nose up with increasing ...

  • Page 30

    3rd ed. Sep 30, 06 2-15 s–tec fig. 2-13. Ap display, automatic trim advisements (pre-flight) a. Hdg and vs modes engaged, 0 fpm, trim up in progress b. Hdg and vs modes engaged, 0 fpm, trim dn in progress fig. 2-14. Remote annunciator display, hdg, vs, and fd modes engaged (pre-flight).

  • Page 31

    2-16 3rd ed. Sep 30, 06 s–tec action response note: if autopilot is equipped with autotrim, then proceed to step 41. Otherwise, proceed to step 42. 41. Move a/c control wheel as far forward or aft as possible. After 3 seconds, elevator trim wheel does not begin to run, indicating that trim servo is ...

  • Page 32

    3rd ed. Sep 30, 06 2-17 s–tec action response 49. Move a/c control wheel as far forward or aft as possible. After 3 seconds, elevator trim wheel begins to run, indicating that trim servo is engaged. 50. Press either forward or aft on both segments of manual electric trim switch. Autopilot disconnect...

  • Page 33

    2-18 3rd ed. Sep 30, 06 s–tec fig. 2-15. Ap display, manual electric trim in progress (pre-flight).

  • Page 34

    3rd ed. Sep 30, 06 2-19 s–tec action response 57. Press/hold ap disc / trim intr switch. Elevator trim wheel stops. 58. Release ap disc / trim intr switch. Elevator trim wheel resumes running nose up at full speed. 59. Release manual electric trim switch. Elevator trim wheel stops. Trim annunciation...

  • Page 35

    2-20 3rd ed. Sep 30, 06 s–tec action response 64. Attempt actuation of a/c rudder pedals alternately in succession. A/c rudder pedals’ reduced freedom of movement indicates that yaw servo is engaged. Yaw servo can be overridden. If not, set yaw damper master switch to off position, and do not use. 6...

  • Page 36: Section 3

    3rd ed. Sep 30, 06 3-1 s–tec section 3 in-flight procedures.

  • Page 37

    3-2 3rd ed. Sep 30, 06 s–tec page intentionally blank.

  • Page 38

    3rd ed. Sep 30, 06 3-3 s–tec fig. 3-1. Ap display, hdg mode engaged 3.1 normal operating procedures 3.1.1 heading (hdg) mode set the heading bug to the desired heading on the compass card (hsi or dg), and then press the hdg mode selector switch to engage the heading mode. The hdg annunciation will a...

  • Page 39

    3-4 3rd ed. Sep 30, 06 s–tec if the course deviation indication (cdi) is at full scale (100%) needle deflection from center, then the autopilot will establish the aircraft on a 45 ° intercept angle relative to the selected course. Even if cdi needle deflection is less than 100%, the autopilot may st...

  • Page 40

    3rd ed. Sep 30, 06 3-5 s–tec while tracking in the soft condition, the autopilot ignores short term cdi needle deflections (excursions), to thereby inhibit aircraft scalloping during vor station passage. Should cdi needle deflection exceed 50% for a period of 60 seconds, the autopilot will revert to...

  • Page 41

    3-6 3rd ed. Sep 30, 06 s–tec 3.1.2.1 pilot selectable intercept angle to select an intercept angle other than 45°, set the heading bug to the desired intercept heading on the compass card, such that the difference between this heading and the desired course is the intercept angle. Then set the cours...

  • Page 42

    3rd ed. Sep 30, 06 3-7 s–tec 3.1.3 navigation global positioning system steering (nav gpss) mode program a predefined course into the gps navigation receiver, comprised of course segments connected by waypoints. Press the nav mode selector switch twice to engage the navigation global positioning sys...

  • Page 43

    3-8 3rd ed. Sep 30, 06 s–tec 3.1.4 altitude hold (alt hold) mode the altitude hold mode can only be engaged if a roll mode (hdg, nav, nav apr, rev, rev apr, nav gpss) is already engaged. With a roll mode engaged and the aircraft at the desired altitude, press the alt mode selector switch to engage t...

  • Page 44

    3rd ed. Sep 30, 06 3-9 s–tec fig. 3-12. Ap display, hdg and vs modes engaged 3.1.6 control wheel steering (cws) mode the control wheel steering mode can only be engaged if a roll mode (hdg, nav, nav apr, rev, rev apr, nav gpss) and pitch mode (alt, vs, gs) are already engaged. With a roll and pitch ...

  • Page 45

    3-10 3rd ed. Sep 30, 06 s–tec should the pitch servo loading exceed a preset threshold for a period of three seconds, the autopilot will annunciate either trim ∧ or trim ∨ as a prompt to trim the aircraft in the indicated direction. This is shown in fig. 3-14. In addition, an audible alert will soun...

  • Page 46

    3rd ed. Sep 30, 06 3-11 s–tec a. Trim up in progress b. Trim dn in progress fig. 3-15. Ap display, automatic trim advisements 3.1.7.3 manual electric elevator trim if the autopilot is equipped with autotrim, then there will also be the remote manual electric trim switch located on the control wheel....

  • Page 47

    3-12 3rd ed. Sep 30, 06 s–tec fig. 3-16. Ap display, manual electric trim in progress 3.2 precision approach procedures 3.2.1 straight-in ils approach 3.2.1.1 software revision 5 and above execute a straight-in intercept and track of the front inbound loc course (reference section 3.3.3), while hold...

  • Page 48

    3rd ed. Sep 30, 06 3-13 s–tec note: if the approach positions the aircraft slightly above the gs centerline, then manual engagement of the glideslope mode can be instantly achieved by pressing the alt mode selector switch. Caution: manual engagement of the glideslope mode above the gs centerline wil...

  • Page 49

    3-14 3rd ed. Sep 30, 06 s–tec fig. 3-20. Straight-in ils approach 3.2.1.2 software revision 4 and below execute a straight-in intercept and track of the front inbound loc course (reference section 3.3.3), while holding the approach altitude. The nav, apr, and alt annunciations will appear as shown i...

  • Page 50

    3rd ed. Sep 30, 06 3-15 s–tec note: if the approach positions the aircraft slightly above the gs centerline, then manual engagement of the glideslope mode can be instantly achieved by pressing the alt mode selector switch. Caution: manual engagement of the glideslope mode above the gs centerline wil...

  • Page 51

    3-16 3rd ed. Sep 30, 06 s–tec the rev annunciation will flash whenever cdi needle deflection exceeds 50%, or the nav flag is in view. In the latter event, the fail annunciation will also appear. A summary pictorial of this procedure is shown in fig. 3-22. Fig. 3-21. Ap display, rev apr mode engaged,...

  • Page 52

    3rd ed. Sep 30, 06 3-17 s–tec 3.3.1.1 pilot selectable intercept angle to select an intercept angle, set the heading bug to the desired intercept heading on the compass card, such that the difference between this heading and the back inbound loc course is the intercept angle. If the heading system i...

  • Page 53

    3-18 3rd ed. Sep 30, 06 s–tec 3.3.2 back course approach with procedure turn select the loc frequency on the navigation receiver. Heading system hsi set course pointer to front inbound loc course on compass card. Heading system dg set heading bug to front inbound loc course on compass card. Press th...

  • Page 54

    3rd ed. Sep 30, 06 3-19 s–tec at the appropriate time, set the heading bug to the back outbound procedure turn heading, and then press the hdg mode selector switch to engage the heading mode. Hold this heading until the point at which it is time to turn the aircraft again. At that point, turn the he...

  • Page 55

    3-20 3rd ed. Sep 30, 06 s–tec 1. A. Select loc frequency. B. Heading system hsi set course pointer to front inbound loc course. Heading system dg set heading bug to front inbound loc course. C. Press nav mode selector switch to engage navigation approach mode. D. Intercept and track back outbound lo...

  • Page 56

    3rd ed. Sep 30, 06 3-21 s–tec fig. 3-27. Ap display, nav apr mode engaged, track loc front course inbound 3.3.3 straight-in loc approach select the loc frequency on the navigation receiver. Heading system hsi set course pointer to front inbound loc course on compass card. Heading system dg set headi...

  • Page 57

    3-22 3rd ed. Sep 30, 06 s–tec 1. A. Select loc frequency. B. Heading system hsi set course pointer to front inbound loc course. Heading system dg set heading bug to front inbound loc course. C. Press nav mode selector switch to engage navigation approach mode. D. Intercept and track front inbound lo...

  • Page 58

    3rd ed. Sep 30, 06 3-23 s–tec fig. 3-29. Ap display, nav apr mode engaged, track vor front course inbound 3.3.4 straight-in vor approach select the vor frequency on the navigation receiver. Heading system hsi set course pointer to front inbound vor course on compass card. Heading system dg set headi...

  • Page 59

    3-24 3rd ed. Sep 30, 06 s–tec 1. A. Select vor frequency. B. Heading system hsi set course pointer to front inbound vor course. Heading system dg set heading bug and obs to front inbound vor course. C. Press apr mode selector switch to engage navigation approach mode. D. Intercept and track front in...

  • Page 60

    3rd ed. Sep 30, 06 3-25 s–tec 3.3.5 loc approach with procedure turn select the loc frequency on the navigation receiver. Heading system hsi set course pointer to front inbound loc course on compass card. Heading system dg set heading bug to back inbound loc course on compass card. Press the rev mod...

  • Page 61

    3-26 3rd ed. Sep 30, 06 s–tec at the appropriate time, set the heading bug to the front outbound procedure turn heading, and then press the hdg mode selector switch to engage the heading mode. Hold this heading until the point at which it is time to turn the aircraft again. At that point, turn the h...

  • Page 62

    3rd ed. Sep 30, 06 3-27 s–tec fig. 3-33. Loc approach with procedure turn 1. A. Select loc frequency. B. Heading system hsi set course pointer to front inbound loc course. Heading system dg set heading bug to back inbound loc course. C. Press rev mode selector switch to engage reverse approach mode....

  • Page 63

    3-28 3rd ed. Sep 30, 06 s–tec 3.3.6 vor approach with procedure turn select the vor frequency on the navigation receiver. Heading system hsi set course pointer to front inbound vor course on compass card. Heading system dg set heading bug and obs to back inbound vor course on each respective compass...

  • Page 64

    3rd ed. Sep 30, 06 3-29 s–tec fig. 3-35. Ap display, nav apr mode engaged, track vor front course inbound a summary pictorial of this procedure is shown in fig. 3-36. At the appropriate time, set the heading bug to the front outbound procedure turn heading, and then press the hdg mode selector switc...

  • Page 65

    3-30 3rd ed. Sep 30, 06 s–tec fig. 3-36. Vor approach with procedure turn 1. A. Select vor frequency. B. Heading system hsi set course pointer to front inbound vor course. Heading system dg set heading bug and obs to back inbound vor course. C. Press rev mode selector switch to engage reverse mode. ...

  • Page 66

    3rd ed. Sep 30, 06 3-31 s–tec 3.3.7 nav gpss approach program a predefined approach into the gps navigation receiver. Press the nav mode selector switch twice to engage the navigation global positioning system steering mode (reference section 3.1.3). The autopilot will laterally steer the aircraft a...

  • Page 67

    3-32 3rd ed. Sep 30, 06 s–tec 3.4.2 fd mode with the autopilot master switch in the fd/ap position, together with a roll mode (hdg, nav, nav apr, rev, rev apr, nav gpss) and pitch mode (alt, vs, gs) engaged, set the autopilot master switch to the fd position as shown in fig. 3-40. An audible alert w...

  • Page 68

    3rd ed. Sep 30, 06 3-33 s–tec 3.5 yaw damper operation the optional yaw damper serves to dampen excessive adverse yaw. It operates in either the auto mode or on mode, depending upon the position of the yaw damper master switch shown in fig. 3-43. Fig. 3-42. Fd display, fd mode engaged the yaw damper...

  • Page 69

    3-34 3rd ed. Sep 30, 06 s–tec 3.5.1 auto mode with the yaw damper master switch in the auto position, the yaw servo will become automatically engaged whenever a roll mode (hdg, nav, nav apr, rev, rev apr, nav gpss) is engaged. 3.5.2 on mode with the yaw damper master switch in the on position, the y...

  • Page 70: Section 4

    3rd ed. Sep 30, 06 4-1 s–tec section 4 operating parameters.

  • Page 71

    4-2 3rd ed. Sep 30, 06 s–tec page intentionally blank.

  • Page 72

    3rd ed. Sep 30, 06 4-3 s–tec 4.1 roll axis limits turn rate piston a/c: 90% standard rate turn (hdg, nav, nav apr, rev, rev apr, cws modes) turboprop a/c: 75% standard rate turn (hdg, nav, nav apr, rev, rev apr, cws modes) all a/c: 130% standard rate turn (nav gpss mode) for programmer/computers wit...

  • Page 73

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  • Page 74: Section 5

    3rd ed. Sep 30, 06 5-1 s–tec section 5 glossary.

  • Page 75

    5-2 3rd ed. Sep 30, 06 s–tec page intentionally blank.

  • Page 76

    3rd ed. Sep 30, 06 5-3 s–tec term meaning a/c aircraft adj adjustment alt altitude ap autopilot apr approach ars aircraft reference symbol cap capture cdi course deviation indication cw clockwise cws control wheel steering ccw counter–clockwise crs course dg directional gyro dh decision height disc ...

  • Page 77

    5-4 3rd ed. Sep 30, 06 s–tec page intentionally blank.

  • Page 78: One S–Tec Way

    One s–tec way municipal airport mineral wells, tx 76067–9236 tel: 800–872–7832 fax: 940–325–3904 www.S-tec.Com s–tec pn 87109 information contained in this document is subject to change without notice. © 2007 s-tec. All rights reserved. Printed in the united states of america. S-tec and the s-tec lo...