S-TEC Fifty Five X Pilot Operating Handbook Download

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HDG

NAV

APR

REV TRIM

ALT GS VS

VS x 100

IFTY

IVE

Summary of Contents for Fifty Five X

Page 1: ...D E C R I N 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: ...e 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 complete table below Revision Number Revision Date Insertion Date Initials 1 st Ed Nov 08 00 2 nd Ed May 31 02 3rd Ed Sep 30 06 1st Rev Mar 15 07 2 nd Rev Apr 15 07 2nd Rev Apr 15 07 ...

Page 3: ...ii 3rd Ed Sep 30 06 S TEC Page Intentionally Blank ...

Page 4: ...ht Test 2 6 3 In Flight Procedures 3 1 3 1 Normal Operating Procedures 3 3 3 1 1 Heading HDG Mode 3 3 3 1 2 Navigation NAV Mode 3 3 3 1 2 1 Pilot Selectable Intercept Angle 3 6 3 1 3 Navigation GPSS NAV GPSS Mode 3 7 3 1 3 1 Pilot Selectable Intercept Angle 3 7 3 1 4 Altitude Hold ALT HOLD Mode 3 8 3 1 5 Vertical Speed VS Mode 3 8 3 1 6 Control Wheel Steering CWS Mode 3 9 3 1 7 Elevator Trim 3 9 3...

Page 5: ... 3 2 Back Course Approach with Procedure Turn 3 18 3 3 3 Straight In LOCApproach 3 21 3 3 4 Straight In VORApproach 3 23 3 3 5 LOC Approach with Procedure Turn 3 25 3 3 6 VOR Approach with Procedure Turn 3 28 3 3 7 NAV GPSSApproach 3 31 3 4 Flight Director Operation 3 31 3 4 1 FD AP Mode 3 31 3 4 2 FD Mode 3 32 3 5 Yaw Damper Operation 3 33 3 5 1 AUTO Mode 3 34 3 5 2 ON Mode 3 34 3 5 3 Yaw Damper ...

Page 6: ...AV and VS Modes Engaged 0 FPM Pre Flight 2 11 2 12 AP Display Manual Trim Prompts Pre Flight 2 13 2 13 AP Display Automatic Trim Advisements Pre Flight 2 15 2 14 Remote Annunciator Display HDG VS and FD Modes Engaged Pre Flight 2 15 2 15 AP Display Manual Electric Trim in Progress Pre Flight 2 18 3 1 AP Display HDG Mode Engaged 3 3 3 2 AP Display NAV Mode Engaged 3 3 3 3 Remote Annunciator Display...

Page 7: ...DG Mode Engaged REV APR ModeArmed 3 17 3 24 AP Display NAVAPR Mode Engaged Track LOC Back Course Outbound 3 18 3 25 APDisplay REVAPR Mode Engaged Track LOC Back Course Inbound 3 19 3 26 Back Course Approach with Procedure Turn 3 20 3 27 AP Display NAVAPR Mode Engaged Track LOC Front Course Inbound 3 21 3 28 Straight In LOCApproach 3 22 3 29 APDisplay NAVAPR Mode Engaged Track VOR Front Course Inbo...

Page 8: ...D AP Mode Engaged 3 32 3 40 AP Master Switch FD Mode Engaged 3 32 3 41 Remote Annunciator Display FD Mode Engaged 3 32 3 42 FD Display FD Mode Engaged 3 33 3 43 Yaw Damper Master Switch 3 33 3 44 Yaw Damper Trim Knob 3 33 List of Tables Table Pg 2 1 Power Up Test 2 3 2 2 Pre Flight Test 2 6 ...

Page 9: ...viii 3rd Ed Sep 30 06 S TEC Page Intentionally Blank ...

Page 10: ...3rd Ed Sep 30 06 1 1 S TEC SECTION 1 OVERVIEW ...

Page 11: ...1 2 3rd Ed Sep 30 06 S TEC Page Intentionally Blank ...

Page 12: ...teorological Conditions VMC prior to using it under Instrument Flight Rules IFR 1 3 General Control Theory The System Fifty Five X is a rate based autopilot When in control of the roll axis the autopilot senses turn rate as well as closure rate to the selected course along with the non rate quantities of heading error course error and course deviation indication When in control of the pitch axis t...

Page 13: ...rse Inbound Reverse Approach REV APR Mode Used to Intercept and Track a LOC Back Course Inbound Navigation Global Positioning System Steering NAV GPSS Mode Used to Laterally Steer along a Course defined by GPS Control Wheel Steering CWS Mode Used to Simultaneously Hold Turn Rate and Vertical Speed 1 4 2 Pitch Axis Control Altitude Hold ALT HOLD Mode Used to Hold Altitude Vertical Speed VS Mode Use...

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: ...3rd Ed Sep 30 06 2 1 S TEC SECTION 2 PRE FLIGHT PROCEDURES ...

Page 17: ...2 2 3rd Ed Sep 30 06 S TEC Page Intentionally Blank ...

Page 18: ...isplay as shown in Fig 2 1 for 10 seconds and then extinguish FD AP Flight Director Installed AP No Flight Director For Programmer Computers with serial number greater than 3001 software revision number briefly appears on AP display between 10 and 20 seconds following power up as shown in Fig 2 2 RDY annunciation alone re appears on AP display within 3 minutes as shown in Fig 2 3 Notes 1 2 Notes 1...

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: ...er Line A C Control Wheel turns to the right 7 Set Heading Bug under Lubber Line A C Control Wheel stops 8 Move A C Control Wheel forward and aft to sense its freedom of movement about pitch axis 9 Press ALT mode selector switch to engage altitude hold mode ALT annunciation appears with HDG on AP display as shown in Fig 2 7 10 Attempt movement of A C Control Wheel forward and aft A C Control Wheel...

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: ...ttempt movement of A C Control Wheel left and right A C Control Wheel s reduced freedom of movement indicates that Roll Servo is engaged 16 Attempt movement of A C Control Wheel forward and aft A C Control Wheel s reduced freedom of movement indicates that Pitch Servo is engaged 17 Rotate AP Modifier Knob CW until 5 500 FPM climbing is commanded as shown in Fig 2 9 A C Control Wheel moves in aft d...

Page 24: ...p 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: ...l turns to the right 24 Turn Course Pointer right until CDI needle deflection is 2 dots left of center A C Control Wheel turns to the left 25 Turn Course Pointer left until CDI needle is centered A C Control Wheel stops Note Proceed to step 30 26 Press NAV mode selector switch to engage navigation mode NAV VS and 0 annunciations only appear on AP display as shown in Fig 2 11 27 Turn OBS until CDI ...

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: ...er 7 seconds TRIM annunciation flashes 32 Move A C Control Wheel as far aft as possible After 3 seconds TRIM annunciation appears on AP display as shown in Fig 2 12b After 7 seconds TRIM annunciation flashes 33 Move A C Control Wheel forward until TRIM is extinguished HDG VS and 0 annunciations only appear on AP display Note If autopilot is equipped with autotrim then proceed to step 34 Otherwise ...

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: ...r 7 seconds TRIM annunciation flashes 37 Move A C Control Wheel forward until TRIM is extinguished HDG VS and 0 annunciations only appear on AP display Note If autopilot is equipped with a Remote Annunciator and A C is equipped with a Flight Director then proceed to step 38 Otherwise proceed to step 50 38 Set Autopilot Master Switch to FD position Audible Alert sounds a periodic tone FD annunciati...

Page 30: ...2 13 AP Display Automatic TrimAdvisements 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: ...odifier Knob CW until 15 1500 FPM climbing is commanded FD Steering Command Bars slowly move to a pitch up position 45 Rotate AP Modifier Knob CCW until 15 1500 FPM descending is commanded FD Steering Command Bars slowly move to a pitch down position 46 Set AP Master Switch to FD AP position FD annunciation is extinguished on Remote Annunciator 47 Attempt movement of A C Control Wheel left and rig...

Page 32: ... segment of Manual Electric Trim Switch but not both Elevator Trim Wheel does not begin to run 52 Press Hold forward on both segments of Manual Electric Trim Switch Elevator Trim Wheel runs nose down at full speed and TRIM annunciation appears flashing as shown in Fig 2 15 53 Press Hold AP DISC TRIM INTR Switch Elevator Trim Wheel stops 54 Release AP DISC TRIM INTR Switch Elevator Trim Wheel resum...

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: ...P DISC TRIM INTR Switch to limit Audible Alert to a single beep Autopilot disconnects as follows RDY annunciation flashes and Audible Alert sounds a periodic tone while all other annunciations are extinguished After 5 seconds RDY annunciation stops flashing but remains and Audible Alert is squelched Note If autopilot is equipped with a Yaw Damper then proceed to step 61 Otherwise proceed to step 7...

Page 35: ...do not use 65 Turn Yaw Trim Knob fully CCW Left A C Rudder Pedal slowly moves forward 66 Turn Yaw Trim Knob fully CW Right A C Rudder Pedal slowly moves forward 67 Turn Yaw Trim Knob CCW until A C Rudder Pedals stop 68 Set Yaw Damper Master Switch to OFF position 69 Actuate A C Rudder Pedals alternately in succession A C Rudder Pedals increased freedom of movement indicates that Yaw Servo is disen...

Page 36: ...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: ...ill turn the aircraft onto the selected heading and hold it A new heading can be subsequently selected by setting the Heading Bug to it 3 1 2 Navigation NAV Mode Select the VOR frequency on the Navigation Receiver Heading System HSI Set Course Pointer to desired course on compass card Heading System DG Set Heading Bug and OBS to desired course on each respective compass card Press the NAV mode sel...

Page 39: ...l authority of the autopilot during this stage of the intercept sequence is called the CAP condition which is acknowledged only on the optional Remote Annunciator as shown in Fig 3 3 Fifteen seconds after course capture a second step reduction in autopilot gain occurs to limit the aircraft s turn rate to 45 of a standard rate turn although for some higher performance turboprop aircraft this is 37 ...

Page 40: ...ion will also appear While tracking in the SOFT condition and within 50 CDI needle deflection should it be desired to track in the higher authority CAP SOFT condition instead press the APR mode selector switch to engage the navigation approach NAV APR mode This is acknowledged as shown in Fig 3 6 and Fig 3 7 While tracking in either the SOFT or CAP SOFT condition if a new course is selected that i...

Page 41: ...shown in Fig 3 8 to acknowledge this The autopilot will establish the aircraft on the selected intercept angle heading until it must turn the aircraft onto the selected course to prevent overshoot At that point in the intercept sequence the HDG annunciation will extinguish to indicate engagement of the navigation mode At the moment this occurs if the heading system is a DG immediately set the Head...

Page 42: ...not been programmed into the GPS Navigation Receiver upon attempted engagement of the navigation global positioning system steering mode then the NAV and GPSS annunciations will flash and the autopilot will hold the aircraft s wings level Fig 3 9 AP Display NAV GPSS Mode Engaged 3 1 3 1 Pilot Selectable Intercept Angle To select an intercept angle set the Heading Bug to the desired intercept headi...

Page 43: ...ndition The vertical speed 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 vertical speed press the VS mode selector switch to engage the vertical speed mode The VS annunciation will appear as shown in Fig 3 12 to acknowledge that this mode is engaged along with the current vertical speed The l...

Page 44: ...tical speed The latter appears as a number in units of FPM x 100 prefixed by either a to indicate a climb or a to indicate a descent i e for example 5 indicates 500 FPM climbing if within the aircraft s capabilities The autopilot will hold the aircraft at its current captured turn rate and vertical speed If it should happen that the aircraft s turn rate is initially greater than 90 of a standard r...

Page 45: ...uipped with autotrim the Trim Master Switch is in the ON position and a pitch mode ALT VS GS is engaged then the autopilot will provide an annunciation whenever it is automatically trimming the aircraft about the pitch axis Should the pitch servo loading exceed a preset threshold for a period of three seconds the autopilot will annunciate either Trim or Trim as an advisement that it is automatical...

Page 46: ...ctric Trim Switch The TRIM annunciation will appear flashing as shown in Fig 3 16 and the Elevator Trim Wheel will run nose up at full speed Upon release of this switch the TRIM annunciation will extinguish and the Elevator Trim Wheel will stop To trim the aircraft nose down press forward and hold both segments of the Manual Electric Trim Switch The TRIM annunciation will appear flashing as shown ...

Page 47: ...ig 3 18 1 NAVAPR mode engaged 2 ALT mode engaged 3 NAV Flag out of view 4 GS Flag out of view 5 LOC frequency selected 6 A C within 50 CDI needle deflection of LOC centerline 7 A C more than 10 Glideslope Deviation Indication GDI needle deflection below GS centerline The armed glideslope mode can be subsequently disabled by pressing the APR mode selector switch The GS annunciation will flash to ac...

Page 48: ...anually engage the glideslope mode if GDI needle deflection is greater than 10 above the GS centerline The GS annunciation will flash whenever GDI needle deflection exceeds 50 or the GS Flag is in view In the latter event the FAIL annunciation will also appear At the Decision Height DH disconnect the autopilot to execute either a landing or go around GA A pictorial of this procedure is shown in Fi...

Page 49: ...eedle deflection of LOC centerline 7 A C more than 60 Glideslope Deviation Indication GDI needle deflection below GS centerline If the last condition cannot be met because the aircraft is too near the GS centerline then manual arming of the glideslope mode can be instantly achieved by pressing the ALT mode selector switch The armed glideslope mode can be subsequently disabled by pressing the APR m...

Page 50: ...TURN heading with the heading mode still engaged Establish the desired vertical descent speed and then press the VS mode selector switch to engage the vertical speed mode Upon reaching the approach altitude press the ALT mode selector switch to engage the altitude hold mode Press the NAV mode selector switch to engage the navigation approach mode such that the autopilot will execute a straight in ...

Page 51: ...re is shown in Fig 3 22 Fig 3 21 AP Display REV APR Mode Engaged Track LOC Back Course Inbound 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 d Intercept and track BACK INBOUND LOC course Fig 3 22 Straight In Back Course Approach ...

Page 52: ... approach mode The HDG APR and REV annunciations will appear as shown in Fig 3 23 to acknowledge this The autopilot will establish the aircraft on the selected intercept angle heading until it must turn the aircraft onto the BACK INBOUND LOC course to prevent overshoot At that point in the intercept sequence the HDG annunciation will extinguish to indicate engagement of the reverse approach mode A...

Page 53: ...ss card Heading System DG Set Heading Bug to FRONT INBOUND LOC course on compass card Press the NAV mode selector switch to engage the navigation approach mode The NAV and APR annunciations will appear as shown in Fig 3 24 to acknowledge that this mode is engaged The autopilot will intercept and track the BACK OUTBOUND LOC course Fig 3 24 AP Display NAV APR Mode Engaged Track LOC Back Course Outbo...

Page 54: ...ourse Pointer remains unchanged on compass card Heading System DG Set Heading Bug to BACK INBOUND LOC course on compass card Press the REV mode selector switch to engage the reverse approach mode The REV and APR annunciations will appear as shown in Fig 3 25 to acknowledge that this mode is engaged The autopilot will intercept and track the BACK INBOUND LOC course If the heading system is a DG the...

Page 55: ...ading Bug to BACK OUTBOUND PROCEDURE TURN heading b Press HDG mode selector switch to engage heading mode 3 a Turn Heading Bug in two successive 90 increments to establish aircraft on BACK INBOUND PROCEDURE TURN heading b Heading System HSI Course Pointer remains unchanged Heading System DG Set Heading Bug to BACK INBOUND LOC course c Press REV mode selector switch to engage reverse approach mode ...

Page 56: ...RONT INBOUND LOC course on compass card Heading System DG Set Heading Bug to FRONT INBOUND LOC course on compass card Press the NAV mode selector switch to engage the navigation approach mode The NAV and APR annunciations will appear as shown in Fig 3 27 to acknowledge that this mode is engaged The autopilot will intercept and track the FRONT INBOUND LOC course A summary pictorial of this procedur...

Page 57: ...T INBOUND LOC course c Press NAV mode selector switch to engage navigation approach mode d Intercept and track FRONT INBOUND LOC course 2 a At middle marker if missed approach is declared disconnect autopilot b Stabilize aircraft c Set Heading Bug to missed approach heading d Press HDG mode selector switch to engage heading mode Fig 3 28 Straight In LOC Approach ...

Page 58: ... VOR course on compass card Heading System DG Set Heading Bug and OBS to FRONT INBOUND VOR course on each respective compass card Press the APR mode selector switch to engage the navigation approach mode The NAV and APR annunciations will appear as shown in Fig 3 29 to acknowledge that this mode is engaged The autopilot will intercept and track the FRONT INBOUND VOR course A summary pictorial of t...

Page 59: ...FRONT INBOUND VOR course c Press APR mode selector switch to engage navigation approach mode d Intercept and track FRONT INBOUND VOR course 2 a At middle marker if missed approach is declared disconnect autopilot b Stabilize aircraft c Set Heading Bug to missed approach heading d Press HDG mode selector switch to engage heading mode Fig 3 30 Straight In VOR Approach ...

Page 60: ...rse on compass card Press the REV mode selector switch to engage the reverse approach mode The REV and APR annunciations will appear as shown in Fig 3 31 to acknowledge that this mode is engaged The autopilot will intercept and track the FRONT OUTBOUND LOC course If the heading system is a DG then the autopilot will fly the aircraft in the direction opposite to that of CDI needle deflection Fig 3 ...

Page 61: ...n the FRONT INBOUND PROCEDURE TURN heading Heading System HSI Course Pointer remains unchanged on compass card Heading System DG Set Heading Bug to FRONT INBOUND LOC course on compass card Press the NAV mode selector switch to engage the navigation approach mode The NAV and APR annunciations will appear as shown in Fig 3 32 to acknowledge that this mode is engaged The autopilot will intercept and ...

Page 62: ...ding b Press HDG mode selector switch to engage heading mode 3 a Turn Heading Bug in two successive 90 increments to establish aircraft on FRONT INBOUND PROCEDURE TURN heading 4 a Heading System HSI Course Pointer remains unchanged Heading System DG Set Heading Bug to FRONT INBOUND LOC course b Press NAV mode selector switch to engage navigation approach mode c Intercept and track FRONT INBOUND LO...

Page 63: ...ard Heading System DG Set Heading Bug and OBS to BACK INBOUND VOR course on each respective compass card Press the REV mode selector switch to engage the reverse mode The REV annunciation will appear as shown in Fig 3 34 to acknowledge that this mode is engaged The autopilot will intercept and track the FRONT OUTBOUND VOR course Fig 3 34 AP Display REV Mode Engaged Track VOR Front Course Outbound ...

Page 64: ...turn the aircraft again At that point turn the Heading Bug in two successive 90 increments to establish the aircraft on the FRONT INBOUND PROCEDURE TURN heading Heading System HSI Course Pointer remains unchanged on compass card Heading System DG Set Heading Bug and OBS to FRONT INBOUND VOR course on each respective compass card Press the APR mode selector switch to engage the navigation approach ...

Page 65: ...b Press HDG mode selector switch to engage heading mode 3 a Turn Heading Bug in two successive 90 increments to establish aircraft on FRONT INBOUND PROCEDURE TURN heading 4 a Heading System HSI Course Pointer remains unchanged Heading System DG Set Heading Bug and OBS to FRONT INBOUND VOR course b Press APR mode selector switch to engage navigation approach mode c Intercept and track FRONT INBOUND...

Page 66: ...Flight Director FD is a display of the flight profile It is commanded by the autopilot A pair of Steering Command Bars and an Aircraft Reference Symbol ARS are the principal FD components of interest The position of the Steering Command Bars can be adjusted by the pilot using the Parallax Adjustment shown in Fig 3 37 The FD operates in either the FD AP mode or the FD mode 3 4 1 FD AP Mode Set the ...

Page 67: ... the FD annunciation will appear on the Remote Annunciator as shown in Fig 3 41 to acknowledge that the FD mode is engaged The pilot must steer the aircraft toward the Steering Command Bars until the ARS is tucked into them The FD provides a visual indication of how accurately the pilot is tracking the autopilot s roll and pitch commands A typical view of the FD with the FD mode engaged is shown i...

Page 68: ...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 Trim Knob shown in Fig 3 44 is used to center the slip skid ball when the yaw servo is engaged Fig 3 43 Yaw Damper Master Switch ON AUTO OFF TRIM YAW DAMPER Fig 3 44 Yaw Damper Trim Knob ...

Page 69: ...e slip skid ball 3 6 Autopilot Disconnect The autopilot can be disconnected by any of the following means 1 Press remote AP DISC TRIM INTR Switch located on Control Wheel 2 Press either forward or aft on both segments of remote Manual Electric Trim Switch located on Control Wheel whenever a pitch mode ALT VS GS is engaged 3 Set AP Master Switch to OFF position 4 Pull AP Circuit Breaker 3 7 Automat...

Page 70: ...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: ... GPSS Mode for Programmer Computers with Hardware Mod Code AM and below 90 Standard Rate Turn NAV GPSS Mode for Programmer Computers with Hardware Mod Code AN and above 4 2 Pitch Axis Limits Altitude 32 000 FT Vertical Force Due to Acceleration 0 60 g Vertical Speed 1600 FPM Climbing or Descending Modes A pitch mode ALT VS GS can only be engaged after a roll mode HDG NAV NAV APR REV REV APR NAV GP...

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Page 74: ...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: ... Minute FT Feet GA Go Around GDI Glideslope Deviation Indication GPS Global Positioning System GPSS Global Positioning System Steering GS Glideslope HDG Heading HSI Horizontal Situation Indicator IFR Instrument Flight Rules ILS Instrument Landing System INTR Interrupt KTS Knots LOC Localizer MAP Missed Approach Point NAV Navigation NM Nautical Miles OBS Omnibearing Selector PLX Parallax PN Part Nu...

Page 77: ...5 4 3rd Ed Sep 30 06 S TEC Page Intentionally Blank ...

Page 78: ...ined 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 logo are registered trademarks of S TEC Notice Contact S TEC Customer Support at 800 872 7832 for a Return Material Authorization RMA number prior to the return of any component for any reason ...

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