11.5.2 Flashcards
What happens to the screen when the lights get darker
Screen gets dimmer
What’s another name for the inertial reference system
Adiru
Is there separate control panels
Yes one for pilot and one for first officer
When is the weather shown in the cockpit
On the expanded VOR and ILS
When should you never operate the weather radar
In hangar , infront of buildings or people
How many mcdu on aircraft
3
When do stat pages appear
During failure and relevant flight times
What is the purpose of auto pilot
Reduce human error
What is the flight director
Used as a guidance aid
What does the auto throttle control
Engine power
What does the fadec system control
Engine
What is a duplex system
2 lanes for each channel / axis
What is a triplex system
3 lanes for each channel/axis
What loops system is used and why
Closed loop because it feeds back
What does the outer loop do and receives commands from who
Recieves commands from auto pilot or pilot
Then sends signals to inner loop
What does the inner loop do
Gives control surface commands
How many modes of disengage
2
What are envelope protections
Stops from exceeding parameters
What is vnav
Maximum optical flight in vertical
Where does the FMS get its information from
Adirus
How many auto throttle modes
2
What is modulation
Onto the carrier frequency
What is demodulation
Removal from carrier frequency
What is the maximum frequency
300 GHZ
Marker beacon frequency
75Mhz
What part of earth do sky waves use
Ionosphere
How many antannae on aircraft
6
Navigation frequency
108-118
VHF range
118-136.975 mhz
VHF bandwidth
8.33khz
What channel does Acars use
VHF 3 which is powered by 28v dc at 30 watts
How many more channels does vhf haves compared to 25khz
3 x more
When is hf communication used
Long range
How big is the Ariel in hf
10m
Where is the Ariel in hf
Vertical stab
How is the anenna tuned
Using the atu or coupler
Hf frequency
2-29.99 and 33-20mhz
Atu impendence
52 ohms
What the purpose of selectal
Pilot doesn’t have to monitor as much
What code does selecal use
4 digit code - A-M excluding I
What modes of communication does selectal use
Land - VHF
sea - HF
Who uses satcom and what is it
Pilots and passengers
And its coms between the aircraft and ground
What’s the advantage to satcom
Not affecting by atmospheric conditions and is set to replace HF
How is the antanne rotated
Beam steering unit
How much satilites does immersat have
4 series 3 sataliets
Each has a spare
How does immarsat find the locations
Looks for a satlsitie using the high power amp
What orbit is the immarst in
Geostational
What are the 3 parts of immarsat
AES, GES, Satalite
What is the purpose of acars
To reduce crew workload and send manual and auto data
How much vhf does Acars use
2
Where is sita
Us
Where is Arinc
Europe
What is OOOI
Out , off , on , in
FDR AND CVR frequency
37.5khz
2 storage of FDR and CVR
Magnetic tape and SSM(CMOS & EPROM)
How long is flight data stored for
Last 25 flight hours
FDR and CVR must withstand what
3400G and 1000 degrees C
3 parts of digital
250 different inputs
Measures 1000 parameters
Depth of 600 metres
How long is ulb used for
90 days
Depth of the ulb
3000 metres
Ulb frequency
37.5khz
How does an Elt transmit
At 406.025mhz every 50s for 24 hours
3 types of Elt
Fixed , fixed-portable, portable
How do you handle damaged elts
Just as they were brand new
Lithium battery life
5 years
Where is the fixed elt
Aft of aircraft
What happens when you plug a fixed elt in
It downloads the country of origin and is given a unique code
What position is the elt set to before flight
Set to armed
