Navigation Flashcards
FMGS needs input from 6 things
FMGC’s
ADIRS (inertial)
2 Rad Alt’s
1MB receiver
DME, VOR, ILS
GPS
What does MCDU stand for?
Multi Function Control and Display Unit
2 MMR multi mode receivers
Receive what?
Display where?
ILS 1 & GPS 1
Captains PFD and FO ND and vise versa for #2 MMR
You can tune nav radios 3 ways
Automatically with the FMGC
MCDU
Standby Nav’s
What does the M next to identifier mean?
It has been manually entered into the FMGC
How do you enable standby tuning of an ILS or VOR?
This will inhibit all auto tuning by the FMGC
Lift the guarded NAV switch and push NAV on Standby Tuners. Then select VOR/ILS. Once you push transfer button put in course.
Each ADIRS systems is comprised of _____ADIRU’s. (Units)
ADIRU’s are separated into ADR and IR information
3
ADIRU 1 provides info to_____?
ADIRU 2 vise versa
ADIRU 3 is on standby for other ADIRU’s
Captain
ADIRU 1 is powers through _____?
AC ESS bus
ADIRU must be aligned before they can be used.
How long does this take?
Can aircraft be moved?
To complete the IRU alignment aircraft present position must be entered with in 9 min.
10min
No
Full 10 min IRU alignment is required when?
First flight of the Day
And when there is a crew change
Fast IRU alignment can be done if?
Full isn’t required
Difference between FMGC and IRS IS less than 5NM
To do this turn off all 3 IRS and back on with in 5 sec.
GPS reception of 3 & 4 FPS will
Give aircraft
3 lat/long
4 lat/long/alt
Each FMGC have _____nav data bases.
2
Depending on which auto pilot is in use that will dictate which FMGC is the master.
If INDEPENDENT is displayed then the MCDU will not ______information.
Transfer
