FLight Instruments EFIS Flashcards
Where does the symbology for the ADI and HSI come from?
Symbol generators
What information does the IRU produce?
10 second trend vector
RDMI
VSI
Track
Ground Speed
Position
Wind
Heading
What are the 3 selections possible for the INSTR SOURCE SEL Flight Director?
Source of information from Flight Control Computer
How many Flight Control Computers does the aircraft have?
3
L + C + R
What makes the FMC so smart?
Navigation database
Performance database for the aircraft
With a failure of both FMC‘ S why is the CDU available?
CDU flight plan
What is on the Capt/FO EFI switch?
Symbol Generator
ILS receiver
Radio Altimeter
What does the Capt/FO Air Data switch do?
IAS
ALTM
What does the Capt/IRS switch do?
VSI
Opposite RDMI
With a failure of both the FMC’s what do we lose?
Fuel management
LNAV/VNAV
Navigation database
Auto tuning radios
How many symbol generators are there?
3
Centre is standby SG for both L and R in case of failure
Explain the controls for above the white line for the ADI.
Control selector clockwise sets RA minimums for CAT 2 or 3 approach
Show up on lower R of EADI
RST = Reset minimums stops flashing on EADI
What are the HSI inputs below the white line?
Range must always show the next fly to point
TFC = displays traffic
WXR = power on/off for weather
When do we use PLAN mode?
On the ground, checking nav points
Where are CAT 1 minimums set?
Altimeter bug
EADI – What do we need to know?
On the Top L + R Flight Mode announciations Green is active. White Armed
Attitude indicator in middle = powered by IRU
Flight director = visible when FD turned on. Power by FCC
Pitch Limit Indicators = display when flaps out of up
When does the green runway symbol and Radio altitude become visible?
2500
When does the runway symbol come to meet the plane?
200’
What is the Green Line with Green F?
Min flap speed for that flap setting
What is the Green Line with Green R?
Ref speed
What are the Double magenta lines?
target speed
As long as we have auto pilot and auto throttle, what happens to target speed?
target is 5 knots above Ref. Set on the MCP
What is the Upside down yellow box?
min manoeuvre
On the HSI, what is the green line?
Altitude predictor
On the HSI, in the bottom right, what is the backwards E?
+/- 400 feet indication about flying the aircraft in relation to the VNAV flight path
On the HSI, how do you know you’ve tuned the correct ILS frequency?
You have to listen to it
