TCAS II CAS 67A Pilot’s Guide Effective Date 2/04 Honeywell Collision Avoidance System 006-08499-0000 Rev 7
The information contained in this manual is for reference use only. If any information contained herein conflicts with similar information contained in the Airplane Flight Manual Supplement, the information in the Airplane Flight Manual Supplement shall take precedence. WARNING The enclosed technical data is eligible for export under Licanse Designation NLR and is to be used solely by the individual/organization to whom it is addressed. Diversion contrary to U.S. law is prohibited.
TCAS II Pilot’s Guide Table of Contents SYSTEM COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 SECTION I : OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 TCAS II Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 TCAS II Traffic Display Symbols . . . . . . . . . . . . . . . . . . . . . . . . .8 Non-Threat Traffic . . . .
System Components COCKPIT DISPLAYS IVA 81A/C/D TA/RA VSI IVA 81B RA VSI KAV 485T ALT VSI/RA ITA 81A DEDICATED TA TRAFFIC DISPLAY TRAFFIC ON AN RDS PRIMUS, OR COLLINS RADAR DISPLAY MODE S/TCAS CONTROL PANELS CTA 81A CD 671C Effective Date 2/04 PS 550 KFS 578A PS 578A 2 RMU 556 006-08499-0000 Rev 7
TCAS II Pilot’s Guide System Components REMOTE-MOUNTED HARDWARE TPU 67A TCAS PROCESSOR MST 67A MODE S TRANSPONDER DUAL L-BAND OMNI DIRECTIONAL ANTENNAS 006-08499-0000 Rev 6 GC 362A GRAPHICS PROCESSOR ANT 67A DIRECTIONAL ANTENNA 3 Effective Date 6/03
Introduction INTRODUCTION TCAS II is a system used for detecting and tracking aircraft in the vicinity of your own aircraft. By interrogating their transponders it analyzes the replies to determine range, bearing, and if reporting altitude, the relative altitude of the intruder. Should the TCAS II processor determine that a possible collision hazard exists, it issues visual and audio advisories to the crew for appropriate vertical avoidance maneuvers.
TCAS II Pilot’s Guide Operation SECTION I : OPERATION SECTION I DESCRIBES BASIC OPERATION OF THE TCAS II SYSTEM.
Operation TCAS II: • Compatible with and independent of the ATC System • Determines if a threat exists • Calculates appropriate vertical evasive maneuver • Provides display and audio announcement to the crew —Position information displayed on CRT and/or TA/VSI —Vertical Guidance displayed on VSI —Synthesized voice • Coordinates maneuvers of two or more TCAS II equipped aircraft via Mode S transponder communication Effective Date 4/99 6 006-08499-0000 Rev 5
TCAS II Pilot’s Guide Operation TCAS II OPERATION The TCAS II system monitors the airspace surrounding your aircraft by interrogating the transponder of intruding aircraft. The interrogation reply enables TCAS II to compute the following information about the intruder: 1. Range between your aircraft and the intruder. 2. Relative bearing to the intruder. 3. Altitude and vertical speed of the intruder, if reporting altitude. 4. Closing rate between the intruder and your aircraft.
Operation TCAS II TRAFFIC DISPLAY SYMBOLS TCAS II will display four different traffic symbols on the Traffic Advisory displays. The type of symbol selected by TCAS II is based on the intruder’s location and closing rate. The symbols change shape and color to represent increasing levels of urgency. The traffic symbols may also have an associated altitude tag which shows relative altitude (FL) in hundreds of feet, indicating whether the intruder is climbing, flying level or descending.
TCAS II Pilot’s Guide Operation NON-THREAT TRAFFIC -17 An open white diamond indicates that an intruder’s relative altitude is greater than ±1200 feet, or its distance is beyond 6 nm range. It is not yet considered a threat. This one is 1700 feet below your own altitude, climbing at 500 feet per minute or greater. PROXIMITY INTRUDER TRAFFIC -10 A filled white diamond indicates that the intruding aircraft is within ±1200 feet and within 6 nm range, but is still not considered a threat.
Operation TRAFFIC ADVISORY (TA) -08 A symbol change to a filled yellow circle indicates that the intruding aircraft is considered to be potentially hazardous. Depending on your own altitude TCAS II will display a TA when time to Closest Point of Approach (CPA) is between 20 and 48 seconds. Here the intruder is 800 feet below your aircraft, climbing at 500 feet per minute or greater. A voice is heard in the cockpit, advising: “TRAFFIC, TRAFFIC.
TCAS II Pilot’s Guide Operation RESOLUTION ADVISORY (RA) -06 A solid red square indicates that the intruding aircraft is projected to be a collision threat. TCAS II calculates that the intruder has reached a point where a Resolution Advisory is necessary. The time to closest approach with the intruder is now between 15 and 35 seconds depending on your altitude. The symbol appears together with an appropriate audio warning and a vertical maneuver indication on the RA/VSI.
Operation OFF SCALE TRAFFIC The presence of TA or RA aircraft that are beyond the selected display range is indicated by one half of the traffic symbol at the edge of the screen. The position of the half-symbol represents the bearing of the intruder. TA and RA traffic off scale, TCAS Mode Format. NO BEARING TRAFFIC In installations with dual directional antenna’s with landing gear down or when omni antenna is installed on bottom of the aircraft.
TCAS II Pilot’s Guide Operation THE RA/VSI INSTRUMENT TCAS II guidance is incorporated into the vertical speed indicator. Two rows of colored lights, one green and one red, are located around the vertical speed scale. TCAS II uses the green lights to indicate whether to climb, descend or remain level. Red lights indicate where not to climb, descend or remain level. The lights are OFF unless an active Resolution Advisory is in progress.
Operation THE TA/VSI INSTRUMENT The TA/VSI combines the plan position of intruding aircraft and TCAS II guidance on the vertical speed instrument. A pointer and circular vertical speed scale indicate aircraft vertical rate. Climb and descend Resolution Advisories are shown as red and green bands outside of the scale. The center of the display presents intruding traffic. Refer to Section II for a detailed description of the TA/VSI.
TCAS II Pilot’s Guide Operation INDICATIONS AND VOICE ANNOUNCEMENTS “CLIMB, CLIMB, CLIMB” Situation: The intruder is ahead 4 NM at 12:00 o’clock, 200 feet below your altitude and flying level. Crew Response: Promptly and smoothly establish a climb rate of 1500 feet per minute.
Operation INDICATIONS AND VOICE ANNOUNCEMENTS “MONITOR VERTICAL SPEED” Situation: One intruder is ahead at 12:00 o’clock, 500 feet above your altitude. Another is at 500 feet below your altitude. Both are in level flight. Crew Response: Remain in level flight. Do not climb or descend.
TCAS II Pilot’s Guide Operation INDICATIONS AND VOICE ANNOUNCEMENTS “MONITOR VERTICAL SPEED” Situation: The intruder is ahead at 12:00 o’clock, 600 feet below your altitude and flying level. Crew Response: Do not descend.
Operation INDICATIONS AND VOICE ANNOUNCEMENTS “TRAFFIC, TRAFFIC” Situation: One intruder is ahead at 12:00 o’clock, beyond 5 miles, 200 feet below your altitude. Crew Response: You do not maneuver on the Traffic Advisory symbol. Attempt to visually acquire the intruder and be prepared to maneuver if the TA changes to an RA.
TCAS II Pilot’s Guide Operation INDICATIONS AND VOICE ANNOUNCEMENTS “MONITOR VERTICAL SPEED” Situation: The intruder is 4 NM ahead at 12:00 o’clock, 400 feet above your altitude and flying level. You are already climbing at 2000 feet per minute. Crew Response: Maintain climb at present rate.
Operation INDICATIONS AND VOICE ANNOUNCEMENTS “DESCEND, DESCEND, DESCEND.” Situation: One intruder is 4 NM ahead at 12:00 o’clock, 200 feet above your altitude and flying level. Crew Response: Promptly and smoothly establish a descent rate of 1500 feet per minute.
TCAS II Pilot’s Guide Operation INDICATIONS AND VOICE ANNOUNCEMENTS “CLIMB, CLIMB NOW.” Situation: Alert Increase: The intruder ahead has changed from level flight to a rapid descent after TCAS issued a descend RA. TCAS is now changing that to a climb. Crew Response: You are expected to initiate the change from a descent to a climb maneuver within 2.5 seconds with an increase in G-force to .35.
Operation INDICATIONS AND VOICE ANNOUNCEMENTS “CLEAR OF CONFLICT.” Situation: The intruder has passed behind and is now 600 feet below your altitude. It is no longer a threat. Crew Response: Return promptly to the previous ATC clearance.
TCAS II Pilot’s Guide Operation RECOVERY AFTER CLEAR OF CONFLICT: • If initially in level flight, promptly but smoothly return to the previously assigned altitude unless otherwise directed by ATC. • If climbing or descending resume the planned climb or descent after the intruder has passed by unless otherwise directed by ATC.
Operation AUDIO ANNOUNCEMENTS Synthesized voice announcements are issued by TCAS II over the aircraft audio system. The following tables list all of the RESOLUTION Advisories, audio messages, and advisories in the TCAS II vocabulary. AUDIO MESSAGES CONDITION ADVISORY MESSAGE Traffic Advisory “Traffic, Traffic”* RA Cleared “Clear of Conflict” Self Test Passed “TCAS System Test OK” Self Test Failed “TCAS System Test Fail” * "Traffic" is spoken once if a second TA appears during an advisory.
TCAS II Pilot’s Guide Operation RESOLUTION ADVISORIES AND SYNTHESIZED VOICE ANNOUNCEMENTS RA CATEGORY CORRECTIVE Climb PREVENTIVE “Climb, Climb, Climb” “Monitor Vertical Speed,* Monitor Vertical Speed” “Descend, Descend, Descend” “Monitor Vertical Speed,* Monitor Vertical Speed” “Climb, Crossing Climb Climb, Crossing Climb.” “Monitor Vertical Speed,* Monitor Vertical Speed” “Descend, Crossing Descend Descend, Crossing Descend.
Operation LIST OF RESOLUTION ADVISORIES TCAS TRAFFIC ADVISORY ANNUNCIATIONS (TA): Aural Visual Crew Response "TRAFFIC, TRAFFIC" Amber filled circle on the TA/VSI and Radar indicator. Conduct visual search of the intruder. If successful, maintain visual acquisition to ensure safe operation TCAS RESOLUTION ADVISORY ANNUNCIATIONS (RA): Aural Visual Crew Response “CLIMB, CLIMB, CLIMB” VSI RED from -6000 FPM to +1500 FPM and GREEN from +1500 FPM to +2000 FPM.
TCAS II Pilot’s Guide Operation “DESCEND, CROSSING DESCEND, DESCEND, CROSSING DESCEND” Same as “DESCEND” and further indicates that own flight path will cross that of intruder. Promptly and smoothly establish a 1500 FPM DESCENT as indicated by the GREEN arc on the VSI display. “CLEAR OF CONFLICT” VSI RED and GREEN arcs removed. Range is increasing, and is adequate. Promptly and smoothly return to assigned altitude. “INCREASE CLIMB, INCREASE CLIMB” Follows a “CLIMB” advisory.
Operation Intentionally left blank Effective Date 4/99 28 006-08499-0000 Rev 5
TCAS II Pilot’s Guide Controls and Displays SECTION II: CONTROLS AND DISPLAYS SECTION II DESCRIBES CONTROLS AND DISPLAYS OF THE TCAS II EQUIPMENT.
Controls and Displays Intentionally left blank Effective Date 4/99 30 006-08499-0000 Rev 5
TCAS II Pilot’s Guide Controls and Displays TRANSPONDER/ TCAS CONTROL UNIT; CTA 81A; CTA 81B, CTA 81C, CTA 81D FUNCTION SELECTOR ALT OFF ALT ON TA STBY 5 ACT 12 R ATC 10 3 15 FL TA/RA TEST FAIL LAMP DISPLAY WINDOW FAIL TCAS RANGE 1 ATC ABOVE 2 IDENT BELOW NORM ATC ABOVE/ BELOW KNOBS TRANSPONDER CODE CODE IDENT SELECTOR SELECTOR (PUSHBUTTON) SELECTOR KNOBS KNOBS CTA 81A & D Dual Mode S/TCAS Control Unit, CTA 81C Single Mode S/TCAS Control Unit (CTA 81A shown) FUNCTION SELECTOR RANGE
Controls and Displays ACT 12 R The Display Window displays the 4096 ATC code selection and whether transponder No. 1 or No. 2 is active. The letter R blinks on the CTA 81B when indicating the interrogation reply of ATCRBS transponder only. 1 ATC 1-2 selects the active transponder. The other unit is placed in standby. ATC 2 NO ALT OFF ALT ON/OFF turns altitude source ON or OFF. Concentric knobs select the 4096 ATC code in the display window.
TCAS II Pilot’s Guide 5 10 3 15 FL Controls and Displays The TCAS RANGE Selector is used to select the range on the traffic display. The range is in nautical miles. (Note: This feature may be superceded by a range control on the traffic display bezel in some installations.) Note: Range selection is dependent upon the dash numbers of the control panel.
Controls and Displays FUNCTION SELECTOR CTA 81A/C/D CONTROL UNIT ONLY (SELECTS OPERATING MODE) ALT OFF ALT ON TA STBY TA/RA TEST Moving the spring loaded knob to TEST position for one second initiates a comprehensive self test lasting approximately eight seconds. Refer to the Test section in the Appendix for a detailed description of test functions. STBY places Mode S transponder and TCAS system in standby. Use this position during ground operations.
TCAS II Pilot’s Guide Controls and Displays FUNCTION SELECTOR CTA 81 B CONTROL UNIT ONLY (SELECTS OPERATING MODE) TA TA/RA ATC 1 ON ON ATC 2 STBY STBY TEST TEST There are no TCAS functions on the ATC 2 (3 most clockwise) positions. The left ATC 1 TEST position (CCW) tests the Mode S Transponder and the TCAS system. The right ATC 2 TEST position (CW) tests the ATCRBS transponder only. Moving the spring loaded knob to either TEST position initiates a self test in the respective unit.
Controls and Displays KFS 578A TRANSPONDER/ TCAS CONTROL UNIT TRANSPONDER 1-2 4096 CODE AND FLIGHT LEVEL TEST INDICATOR MODE S FLIGHT LEVEL PHOTOCELL ı TCAS ABOVE/NORM/BELOW 2200 TCAS MODE TA/RA TCAS RANGE TRANSPONDER MODE <> FL 2 5 ALT I D T XPDR/TCAS RANGE TCAS RANGE PUSH ^ ^ IDENT ALT VFR TA ON PUSH TA/ SBY FL RA TST OFF ON/OFF SWITCH PUSH-TCAS ABOVE/NORM/BELOW IDENT BUTTON IDT 1/2 TRANSPONDER 1-2 SELECT 4096 SQUAWK CODE SELECT PUSH-ADVANCE CURSOR FL-PUSH AND HOLD-MOMENTARY CHAN
TCAS II Pilot’s Guide RANGE OFF PUSH ^ ^ Controls and Displays The outer knob on the left hand dual concentric switch selects the Traffic Advisory display range in nautical miles. The selected range is annunciated on the traffic display. The range annunciation is the maximum displayed range to the front of the aircraft. The selected range has no effect on the TCAS II logic giving TAs and RAs. Note: Selected range is displayed in the upper right hand corner of a TA/VSI.
Controls and Displays SBY places the Mode S Transponder and TCAS in standby. SBY is annunciated on the display window. Use SBY during ground operations. ON activates the selected transponder without altitude reporting. TCAS is in standby. ON is annunciated in the display window. ALT activates Mode S transponder with altitude reporting, TCAS system in standby. Selecting VFR for more than 3 seconds changes the ATC code to the pre-programmed VFR code (Typically 1200).
TCAS II Pilot’s Guide Controls and Displays TA/RA (Traffic Advisory and Resolution Advisory) mode. Activates the Mode S transponder, altitude reporting, and TCAS “TA/RA” mode. Aural and visual RAs (Resolution Advisories) will be issued for traffic determined to be a threat. Traffic will be presented on the traffic (TA) display. TA/RA mode is annunciated in the display window, on the optional color radar indicator or dedicated traffic display.
Controls and Displays 1/2 selects the active transponder. The other unit is placed in standby. (Pushbutton) IDT initiates IDENT feature for ATC. (Pushbutton) FID allows entry of an alphanumeric flight identification. Selecting the right inner pushbutton will cycle through the eight characters to be changed. Rotating the right (Pushbutton) inner knob will change the contents of the selected (flashing) character.
TCAS II Pilot’s Guide Controls and Displays PS 578A FUNCTION SELECTOR, ATC CODE SELECT & MOMENTARY TCAS DISPLAY FLIGHT LEVEL SELECT The outer concentric knob on the right selects the Mode S and TCAS mode of operation. Rotating the function knob (CCW) to the TST position initiates a comprehensive self test lasting approximately eight seconds.
Controls and Displays The traffic display switches to the FL (flight level) display function when the inner knob is pressed in for more than four seconds. The relative altitude tags are replaced with absolute altitude (FL) tags. The traffic display will revert to relative altitude after 15 seconds. The FL feature is usually flagged below 18,000 feet MSL unless barometric corrected altitude is available from an air data source.
TCAS II Pilot’s Guide Controls and Displays Note: If the CD 671A is interfaced to a MST 67A Mode S transponder and the MST 67A senses a failure, a failure annunciation will be shown. A maintenance check should be performed. The Display Window displays the ATC code selection, whether transponder #1 or #2 is active, transponder mode, transponder ident, own aircraft flight level (in TEST), TCAS mode, TCAS range and TCAS above, below or normal vertical display limit selected.
Controls and Displays The traffic display may have another range select source. The selected TCAS range is always annunciated on the traffic display. The range annunciated is the maximum displayed range to the front of the aircraft. The range to the rear is 1/2 the annunciated range. The selected range has no effect on the TCAS logic giving TAs or RAs. The inner concentric knob may include an optional ON/OFF switch; clockwise is ON.
TCAS II Pilot’s Guide Controls and Displays SBY places the Mode S Transponder and TCAS in standby. SBY is annunciated in the display window. Use standby during ground operations. ON activates the selected transponder without altitude reporting. TCAS is in standby. ON is annunciated in the display window. ALT Activates Mode S transponder with altitude reporting, TCAS system in standby. VFR Selecting VFR for more than 3 seconds changes the ATC code to the pre-programmed VFR code (typically 1200).
Controls and Displays The FL feature is usually flagged below 18,000 feet MSL unless barometric corrected altitude is available from an air data source. FL is flagged on the IVA 81A but not on the radar indicator when used with the GC 362A, traffic displays. If FL is selected while flagged, "FL---" is annunciated instead of own flight level. TA/RA (Traffic Advisory and Resolution Advisory) mode. Activates the Mode S transponder, altitude reporting, and TCAS “TA/RA” mode.
TCAS II Pilot’s Guide Controls and Displays The Display Window displays the ATC code selection, whether transponder #1 or #2 is active, transponder mode, transponder ident, own aircraft flight level (in TEST), TCAS mode, TCAS range and TCAS above, below or normal vertical display limit selected. All display annunciations are seen during the control unit self-test. The 1/2 push button selects No. 1 or No. 2 as the active transponder. The other unit is placed in standby.
Controls and Displays FID Mode - Allows entry of the eight digit alphanumeric flight ID code. The right outer knob selects each of the eight positions for entry, and the right inner knob selects the alphanumeric character. ADC Mode - Allows selection of the air data computer used by the TCAS. The ID push button in the center of the Code Selector knob initiates the IDENT feature for ATC. The IDENT function is used at the request of an Air Traffic Controller, and holds the Ident reply for 18 ± 1 seconds.
TCAS II Pilot’s Guide Controls and Displays TA/RA (Traffic Advisory and Resolution Advisory) mode. Activates the Mode S transponder, altitude reporting, and TCAS “TA/RA” mode. Aural and visual RAs (Resolution Advisories) will be issued for traffic determined to be a threat. Traffic will be presented on the traffic (TA) display. TA/RA mode is annunciated in the display window, on the optional color radar indicator or dedicated traffic display.
Controls and Displays WEATHER RADAR INDICATORS; RDS 81, 82, 84 & 86, PRIMUS COLOR INDICATORS 200/300SL/400/870/P90/650/800 AND COLLINS WXR 300 (IND-270) The GC 362A TCAS Graphic Processor allows TCAS traffic to be displayed on Bendix/King RDS series Radar indicators or Honeywell Primus Color Radar indicators or the Collins IND-270 indicators.
TCAS II Pilot’s Guide Controls and Displays RADAR ONLY MODE In this mode of operation, only weather radar information is displayed until a Traffic Advisory or Resolution Advisory is issued by the TCAS Processor. The range is controlled by the weather radar range control in this mode of operation. When a Traffic or Resolution advisory occurs the display will revert to the default TCAS display (either TCAS Only or Radar/TCAS Overlay) selected by the pop-up default discrete.
Controls and Displays RADAR WITH TCAS OVERLAY MODE A full time TCAS display overlays the weather display in this mode. The display origin is at the bottom of the screen; however, if a Bendix/King RDS series Radar with a GC 360A Graphics Controller is also installed, the display can be referenced to the center of the screen, giving a 360° display. Weather will be displayed in the upper 90° or 120° sector, depending on which radar is being used. Weather is blanked in the areas where TCAS traffic is displayed.
TCAS II Pilot’s Guide Controls and Displays TCAS ONLY MODE In this mode the screen’s origin point is 1/3 up from the bottom of the screen. Only TCAS information is displayed. This mode is maintained unless another mode is manually selected. The range displayed is controlled by the TCAS control panel. A 2 nm range ring is displayed on ranges 3, 5, 10, and 15 nm. The 2 nm range ring consists of discrete dots (cyan) at each of the 12 clock positions.
Controls and Displays The presence of a TA or RA aircraft that is beyond the selected display range is indicated by one half of the traffic symbol at the edge of the screen. The position of the half-symbol represents the bearing of the intruder. TA and RA traffic off scale, 5 mile range, TCAS Only Mode. Same traffic on 10 mile range, TCAS Only Mode.
TCAS II Pilot’s Guide Controls and Displays WEATHER MODES MESSAGE FORMAT TCAS MODE ANNUNCIATIONS: TCAS STBY (Blue) TCAS in Standby TEST (Blue) TCAS in TEST TA/RA (Blue) TA/RA Mode TA/RA AUTO (Blue) TA/RA Pop-Up TA ONLY (Blue) TA ONLY Mode TA AUTO (Blue) TA ONLY Pop-Up Note: When the Radar is placed in standby the TCAS mode annunciation is moved to the upper right hand corner. TCAS FAULT ANNUNCIATIONS: (switch to TCAS ONLY mode for list of faults) NO TCAS (Blue) TCAS not operational.
Controls and Displays TCAS MODE MESSAGE FORMAT TCAS MODE ANNUNCIATIONS: TCAS STBY (Blue) TCAS in Standby TEST (Blue) TCAS in TEST TA/RA (Blue) TA/RA Mode TA/RA AUTO (Blue) TA/RA Pop-Up TA ONLY (Blue) TA ONLY Mode TA AUTO (Blue) TA ONLY Pop-Up TCAS FAULT ANNUNCIATIONS: NO TCAS (Blue) TCAS not operational TCAS FAIL (Yellow) TCAS Failure GP FAIL (Yellow) GC 362A Failure Effective Date 2/04 56 006-08499-0000 Rev 7
TCAS II Pilot’s Guide Controls and Displays FAULT MESSAGE FORMAT FAULT ANNUNCIATIONS: TCAS PROCESSOR UPPER ANTENNA LOWER ANTENNA RADIO ALT #1 RADIO ALT #2 RADIO ALT #1 & #2 #1 XPNDR DATA BUS #2 XPNDR DATA BUS TRAFFIC DISPLAY #1 TRAFFIC DISPLAY #2 RA DISPLAY #1 & #2 RA DISPLAY #1 RA DISPLAY #2 006-08499-0000 Rev 7 SELECTED XPNDR XPNDR TOP ANTENNA XPNDR LOWER ANTENNA XPNDR TCAS DATA XPNDR CONTROL DATA XPNDR ALT DATA #1 & #2 #1 XPNDR ALT DATA #2 XPNDR ALT DATA ATTITUDE HEADING GP RAM NO RADAR 429 DATA NO T
Controls and Displays ITA 81A DEDICATED TCAS TRAFFIC DISPLAY AUTO PUSHBUTTON RANGE SELECTOR BRIGHTNESS CONTROL ABOVE NORMAL PUSHBUTTONS BELOW Effective Date 2/04 58 006-08499-0000 Rev 7
TCAS II Pilot’s Guide Controls and Displays ITA 81A DEDICATED TCAS TRAFFIC DISPLAY CONTROLS 5 10 20 Pushbutton Range Selectors select 40 range to be displayed. AUTO Pushbutton: At Power-Up the screen initially displays all TCAS traffic. Pressing the button alternates between Full-Time and TCAS Pop-Up modes. AUTO When in Pop-Up mode, the screen clears and remains blank until TA or RA traffic appears. Then all TCAS traffic is displayed. TCAS AUTO is annunciated.
Controls and Displays IVA 81B & KAV 485T RA/VSI RESOLUTION ADVISORY/VERTICAL SPEED INDICATOR Two rows of colored lights, one red and one green, are located around the vertical speed scale. The RA/VSI indicates whether to climb, descend, or maintain vertical speed by illuminating segments of these rows. The required vertical maneuver keeps the pointer out of the red, and/or into the green areas.
TCAS II Pilot’s Guide Controls and Displays IVA 81A/C/D TA/VSI TRAFFIC ADVISORY/VERTICAL SPEED INDICATOR The TA/VSI combines the vertical speed instrument with the TA and RA display functions. Red and green bands around the circumference of the screen give RA information. Traffic location is presented on the face of the display inside of the vertical speed scale. The TA Select Pushbutton can be wired for either a Traffic Select or Switchable configuration at time of installation.
Controls and Displays VERTICAL SPEED POINTER GREEN COMMAND ARC RED COMMAND ARC MAXIMUM RANGE BORDER INTRUDER INTRUDERS OFF SCALE TRAFFIC OWN AIRCRAFT SYMBOL 2 MILE RANGE RING RANGE PUSHBUTTONS 3, 5, 10,15 NM OR 5, 10, 20, 40 NM OR 3/5/10/20/40 NM DEPENDING ON INSTALLATION TA SELECT PUSHBUTTON BRIGHTNESS CONTROL Effective Date 2/04 62 006-08499-0000 Rev 7
TCAS II Pilot’s Guide Controls and Displays DISPLAY MESSAGE LOCATIONS OWN AIRCRAFT FLIGHT LEVEL WHEN FL PUSHBUTTON IS ABOVE BELOW TCAS 2 RNG 5 1 .5 +05 OFF SCALE 4 +12 6 0 -03 4 .5 1 TA NO BEARING MESSAGES RA (DIST,ALT, TREND ARROW) (RED) TA (DIST,ALT, TREND ARROW)(YELLOW) EXAMPLE: 1.
Controls and Displays TYPICAL TA/VSI SCENARIOS CLIMB,... MONITOR VERTICAL SPEED,...
TCAS II Pilot’s Guide Controls and Displays MONITOR VERTICAL SPEED,... TRAFFIC,...
Controls and Displays MONITOR VERTICAL SPEED,... DESCEND,...
TCAS II Pilot’s Guide Systems Considerations SECTION III: SYSTEM CONSIDERATIONS SECTION III EXPLAINS CONSIDERATIONS OF THE SYSTEM; WARNINGS AND LIMITATION, CAUTIONS AND NOTES.
Systems Considerations WARNINGS AND LIMITATIONS The capability of TCAS II is dependent upon the type of transponder in the intruding aircraft: • The intruding aircraft must be equipped with a properly operating transponder for normal TCAS operation. TCAS is unable to detect any aircraft without an operating transponder. • If the intruder is Non-Altitude Reporting (NAR), TCAS will display only the range and bearing.
TCAS II Pilot’s Guide Systems Considerations WARNINGS AND LIMITATIONS (CONT’D) • TCAS can be wired to inhibit display of traffic on the ground when your own aircraft is below 1700 ±50’ AGL. If configured this way, aircraft on the ground disappear as you descend through 1650’ and reappear on the traffic display as you climb above above 1750’. TCAS II designates “On-Ground” traffic by comparing own aircraft radio altitude and pressure altitude.
Systems Considerations NOTES Refer to the Airplane Flight Manual for the specific operational features of the TCAS installation. When TCAS commands a corrective Resolution Advisory, sufficient time exists to perform a smooth vertical maneuver to avoid the conflict. TCAS II expects five second crew reaction time to RAs, requiring approximately .25 G. An increase or reversal to an RA requires two and one half seconds reaction time and up to .35 G.
TCAS II Pilot’s Guide Appendix SECTION IV: APPENDIX THE APPENDIX INCLUDES THE TEST FUNCTION OF TCAS II EQUIPMENT, A GLOSSARY OF TCAS TERMS AND RECOMMENDATIONS FOR POST FLIGHT REPORTS.
Appendix Intentionally left blank Effective Date 2/04 72 006-08499-0000 Rev 7
TCAS II Pilot’s Guide Appendix FUNCTIONAL AND AUTOMATIC SELF TEST The Mode S transponder and TCAS Functional Test determines the operational status of the entire system. The test is initiated by rotating the function selector knob on the Transponder Control Panel to the TEST position. Thereafter, the test continues automatically for a period of approximately eight seconds. During the test the TCAS II and transponder function is inhibited.
Appendix CAS 67A Radar Test Pattern; 5NM range CAS 67A TA/VSI Test Pattern; 5NM range A Resolution Advisory (red square) will appear at 3 o’clock, range of 2 miles, 200 feet above and flying level. A Traffic Advisory (yellow circle) will appear at 9 o’clock, range of 2 miles, 200 feet below and climbing. Proximity traffic (solid white diamond) will appear at 1 o’clock, range 3.6 miles, 1000 feet below descending. Non-Threat traffic (open white diamond) will appear at 11 o’clock, range of 3.
TCAS II Pilot’s Guide Appendix After the sequential lamp test, the red and green climb/descend lights display a fixed test command throughout the remainder of the system test. Fixed Test Command At the conclusion of a successful Self-Test, a synthesized voice announces: “TCAS SYSTEM TEST OK” RA/VSI AND TA/VSI LAMP TESTS RA/VSI Lamp Tests If the aircraft wiring includes a lamp test function, the RA/VSI sequential lamp test can be observed by activating the Master Lamp Test Switch.
Appendix TA/VSI Lamp Test The TA/VSI lamp test produces an array of traffic in the pattern shown. The climb/descend color bands alternate between green and red, lasting for two seconds each. The bands are blank for a one second interval in between. Note: The VSI function of the TA/VSI will not be observed during the lamp test.
TCAS II Pilot’s Guide Appendix FAILURE CONDITIONS Should a VSI failure be detected at any time, the VSI flag will appear. Should a failure be detected during Self Test, the audio message says: “TCAS SYSTEM TEST FAIL” If the TA display is a Radar Indicator or dedicated display, the appropriate failure message will be displayed. (See Fault Message Format in Section II: Controls and Displays.) TEST AUDIO INHIBIT TCAS test audio is inhibited during GPWS and windshear test or alert.
Appendix GLOSSARY OF TCAS TERMS ABBREVIATIONS AND DEFINITIONS AFMS Airplane Flight Manual Supplement AGL Above Ground Level ATC Air Traffic Control. A federally operated ground based system that manages aircraft traffic flow. ATCRBS ATC Radar Beacon System. A ground based secondary radar and airborne transponder system used to monitor traffic. Absolute Altitude Altitude above Mean Sea Level (MSL). See Pressure Altitude.
TCAS II Pilot’s Guide Appendix ABBREVIATIONS AND DEFINITIONS (CONT’D) G-force The ratio between a given load and the pull of gravity. For TCAS purposes, G-forces of an RA could reach ±.25 above/below 1 G and increase to approximately ±.35 G during an increase or reversal of the original command. IDENT SPI pulse added to Mode A replies as method for ground to identify transponder.
Appendix ABBREVIATIONS AND DEFINITIONS (CONT’D) NAR Non-Altitude Reporting traffic. Non-Threat Intruder An aircraft that has entered the TCAS surveillance volume at a distance greater than 6 miles or altitude greater than 1200 feet above or below your own aircraft. Pressure Altitude Indicated altitude when barometric pressure is set to 29.92” Hg. (1013mb). Pressure altitude is used by TCAS to determine the relative altitude of traffic.
TCAS II Pilot’s Guide Appendix ABBREVIATIONS AND DEFINITIONS (CONT’D) Reversal Maneuver A reversal maneuver is a change of the original Resolution Advisory command from a climb to a descent or vice versa. The reversal maneuver could require G-forces to reach approximately ±.35 within 2.5 seconds. Self Test A functional test that determines equipment status. Self test differs from BITE performance monitoring because it is initiated by the crew and is not performed continually or automatically.
Appendix Intentionally left blank Effective Date 2/04 82 006-08499-0000 Rev 7
Honeywell International Inc. One Technology Center 23500 West 105th Street Olathe, Kansas 66061 FAX 913-791-1302 Telephone: (913) 712-0400 Copyright ©1999, 2004 Honeywell International Inc. All rights reserved.
