NAV Flashcards
How many NAV system does A/C have
- ADIRS
- GPS
- Stanby instrument
- Radio Nav
- Radio altimeter
How many ADIRS does a/c have ?
three
What is the component of ADIRS ?
- ADR
- IR
- 4 type of sensors
- 8 ADMs (air data module)
What infor does ADRs supply ?
Barometric altitude, airspeed, Mach, angle of attack, temp, and overspeed warnings.
What infor does IRs supply ?
Attitude, flight path vector, track, heading, accerleration, angular rate, ground speed and a/c position.
What are 4 type sensor of ADR ?
- Pitot
- Static
- AOA
- TAT
How many pitot tube does a/c have ?
3
* one for capt
* one for F/O
* one stby
how many static probe does a/c have ?
6
* 2 for capt
* 2 for F/O
* 2 stby
How many AOA sensor does a/c have ?
3
* one for capt
* one for F/O
* one stby
How many TAT probe does a/c have ?
2
* one for capt
* one for F/O
What are the input for each ADR ?
- ADR 1 is supplied by Capt probe
- ADR 2 is supplied by F/O probe
- ADR 3 is supplied by STBY probe and Capt TAT
When does ON BAT light up ?
Come on for few second at begining of complete IRS alignment.
Does ON BAT light up in case of fast alignment ?
No
How do you know at least one ADIRU is being supplied by battery ?
External horn sound
ADIRU and AVNCS lights come on amber on EXTERNAL POWER panel
EXTERNAL POWER panel locate under the nose gear bay
IRs pb
FAULT light flashes ?
Attitude and heading can recover in ATT mode
IRs pb
FAULT light steady ?
IR is lost
IRs pb
ALIGN light steady ?
IR is operating normally in align mode
IRs pb
ALIGN light flash ?
- IR alignment fault
- No present position entry after 10 min
- Position at shut down and position entered difference exceed 1° of lat or long
What happen when BUSS activate ?
- BUSS replace normal speed
- GPS altitude replace barometric altitude scale
What infor does BUSS base on ?
AOA and slat/flap configuration
Can you revert back to normal after activate BUSS ?
No
When will BUSS activate ?
all ADR off
What is DBUS ?
Same as BUSS but can be reversible
What caution should be take during using DBUS ?
Do not use MACH target mode
What is GPS ?
GPS is a satelite-based radio navigation aid
How many GPS reciver does A/C have ?
2
What is the component of GPS receiver ?
GPS sensor unit (GPSSU) or Multi mode Receiver (MMR)
GPS 1 use MMR1/GPS 2 use MMR 2
What is the operarional priciple of GPS receiver ?
GPS receiver 1 supplies ADIRU 1/3, GPS receiver 2 supplies ADIRU 2
If ADIRU 2 failed, ADIRU 3 wil be supplied from GPS 2
Radio nav
How many tuning mode are available ?
- Automatic
- Manual
- Back up
Rad nav
What is auto tune ?
FMGS tune navaid automatically
Rad nav
What is manual tune ?
Crew use MCDU for tunning
Rad nav
What is back up tune ?
Crew use RMPs for tunning
Capt RMP control VOR 1 and ADF 1
F/O RMP control VOR 2 and ADF 2
Either RMP control ILS
How many rad nav receiver does A/C have ?
VOR,DME,ILS,ADF,MLS,GLS each has 2 receiver
ILS supplies infor to which PFD and ND ?
ILS 1 supplies to PFD 1 and ND 2
ILS 2 supplies to PFD 2 and ND 1
Which rad nav system contain marker beacon system ?
VOR 1 receiver
How to engage rad nav back up mode on RMP ?
Press NAV key
Can you use NAV backup mode on RMP 3 ?
No
Do you have DME distance on PFD while using Nav backup mode ?
No
Which RMP receiver is powered during emer elec config ?
RMP 1
How many RA does a/c has ?
2
* one for F/O
* one for Capt
Which system generate voice for RA ?
FWC
