Avionics and Flight Instruments Flashcards
How many Air Data Computers (ADC) are installed
Two
How many AHRS or IRS computers are installed
Two
In MAG mode, how long does it take the AHRS system to initialize
30 to 70 seconds
In DG mode, how long does it take the AHRS system to initialize
10 to 11 minutes
From which source do the captain’s flight instruments receive AHRS information
AHRS 1 or IRS 1
From which source do the first officer’s flight instruments receive AHRS information
AHRS 2 or IRS 2
From which source do the captain’s flight instruments receive pitot/static information
System #1, pitot/static tube on left side of nose
(P1-S1)
From which source do the FO’s flight instruments receive pitot/static information
System #2, pitot/static tube on right side of nose
(P2-S2)
From which source does the integrated standby instrument receive pitot/static information
System #3, standby pitot under captain’s side window and two alternate static ports, one on left and one on the right side Pitot Probe 3 (P3)
Where is the TAT probe located
Under FO’s (Right) side window
What is the definition of Total Air Temperature
The temperature of the air corrected for compressibility and friction caused by high speed
On the ground with the probe heat ON, which probes are heated
All pitot probes are heated half way (50%) while pitot bases are not heated, angle of attack vanes and system 3 static ports are fully heated.
Note: The TAT probe and pitot bases which are not heated on the ground
In flight, which probes are heated regardless of probe heat switch position?
All are fully heated regardless of probe heat switch position
Is there a LOC and GS indication on the standby attitude indicator
Yes, The ISI references NAV 1 only.
When and where will the radio altitude information appear
0 to 2500’ AGL Indicated in green below the altitude tape
