The following pages are displayed on
AIRSPEED TAPE INDICATIONS
AFCS INDICATION
TAKE OFF MODE ON PFD
AIR SPEED INDICATION
VERTICAL SPEED INDICATION
ALTITUDE INDICATION
ADI INDICATION
ADI INDICATION
ADI ANNUCIATION
HSI INDICATION
HSI WEATHER RADAR INDICATION
AFCS INDICATIONS ON PFD
The FMA (Flight Mode Enunciator) is displayed on the top of PFD. The FMA displays indications of auto throttle, autopilot, active AFCS channel, lateral mode and vertical mode.
The FMA Colour code for normal operation is the following:-
Magenta: FMS commands active/engaged mode.
Green : Non-FMS commanded active/engaged mode
White : armed mode
Amber : Alert condition
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| autopilot indication on pfd |
Red : Abnormal condition
TAKEOFF MODE ON PFD
The takeoff mode is a FD only mode and is represented by crossbars on PFD .TO mode commands the airplane to maintain a pitch attitude reference. In take off the autopilot engagement is not accepted and FPA mode is inhibited. Lateral mode changes are allowed.
FPA (flight path angle) indication is inhibited for 30 seconds after liftoff when takeoff using raw-data information.
Pressing the TO/GA (Take off or Go Around) button activates the TO mode. Following a landing, the TO mode can be enabled after 5 seconds on ground.
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| PFD Mode Take off cross Bar |
AIRSPEED TAPE INDICATIONS
The below are the detailed description of air speed parameters. All the parts of the air speed indication are listed below with the following parameters. The airspeed tape indications are present on the top left side corner of the primary function display.
1. Selected Airspeed/Mach Read Out
2. Selected Air Speed Bug
3. VFS Speed
4. V2 Speed
5. Air Speed Trend Sector
6. VAC (Vertical alternating current) Speed (AC)
7. VR (rotation) Speed(R)
8. VAP (value added processor) Speed (AP)
9. VREF (approach reference) Speed (RF)
10. Ideal Flap Selection Speed (DOT)
11 V1 Speed
12. Ground Speed
13. Mach Air Speed Read Out
14. Low Speed Awareness Tape
15. Air Speed Rolling Digits
16. VMO/MMO Barber Pole
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| airspeed tape indication |
17. Speed Digit Read Out
VERTICAL SPEED INDICATIONS
The Vertical Speed Indicator, abbreviated as the VSI, presents the pilot with information on how fast the aircraft climbs or descents. This is achieved by measuring how fast the ambient pressure changes and translating this as a rate of change in feet per minute. In the below figure VSI indications are given in detail. The vertical speed is displayed in analogical and digital formats on the PFD. Besides presenting the current vertical speed, the Vertical Speed Indicator (VSI) also displays target vertical speed and respective bug, set through the Flight Guidance Controller. The PFD VSI also indicates vertical direction and minimum vertical speed to be attended during evasive maneuvers, according to TCAS commands.
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| Vertical Speed Indication |
1. Selected Vertical Speed Direction Arrow
2. Selected Vertical Speed Read Out
3. Vertical Speed Scale
4. Selected Vertical Speed Bug
5. Vertical Speed Counter
6. Vertical Speed ReadoutALTITUDE INDICATIONS
The altitude is displayed in tape format on the PFD. The altitude tape also displays the Flight Guidance Controller preselected altitude (ASEL), respective preselected altitude bug, and altitude trending vector.
1. Altitude Tape
2. Metric Altitude Readout
3. Altitude Rolling Digit Readout
4. Barometric Correction
5. Altitude Trend Vector
6. Selected Altitude Bug
7. Selected Altitude Readout
8. Metric Selected Altitude Readout
ADI INDICATIONS AND ADI ANNUNCIATIONS
ADI (Attitude direction indicator) primary function is to display the aircraft’ current attitude. It combines the functions of many electro mechanical indicators into a single electronic display. The ADI indications are
marked and explained below. The ADI indication is present on top of the Primary flight display.
1. Flight Path Reference Line
2. Airplane Symbol
3. Flight Path Vector Speed Error Line
4. FPA Acceleration Pointer
5. Pitch Limit Indicator
6. SLIP/SKID Indicator
7. Roll SCLAE/LOW Bank Limit Arc
8. Roll Pointer
9. Flight Path
10. Flight Director
11. ILS Glide Slope Deviation
12. FMS Vertical Deviation
13. ILS/VOR Lateral Deviation
14. FMS Lateral Deviation
15. Pitch Angle Scale
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ADIHSI INDICATIONSHorizontal situation indicator (HSI) is a flight navigation instrument that combines the heading indicator with a CDI (course deviation indicator), in order to provide the pilot with better situational awareness of location with respect to the course line. 1. Primary Navigation Source Annunciation 2. Ground Speed Readout 3. Selected Heading Readout 4. Bearing Pointer 5. Course Selected Pointer 6. Heading Readout 7. Lateral Deviation Indicator 8. Drift Angle Bus 9. Wind Display 10. Course Select Readout 11. Chronometer Readout 12. Lateral Deviation Dots 13. Secondary Radio Tuning 14. Bearing Source Annunciation 15. Selected Heading Bug 16. Preview navigation Source Annunciation 17. Heading Source Annunciation 18. Course select Preview Pointer 19. Desired Track Readout 20. DME Data Block 21. RNP (required navigation performance) Data Block Indication 22. MCDU (multi functional control unit) Annunciation 23. Approach Sensitivity mode Annunciation 24. FMS Lateral Deviation Annunciation 25. Desired Track Pointer 26. Way Point Data Block Indication 27. Selected Heading Out Of View Arrow |
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| HSI Indication |
