Chapter 6: Cockpit Electronics Flashcards
what does electronic flight instrument system (EFIS) consist of?
upper: electronic attitude and direction indicator (EADI)
lower: electronic horizontal situation indicator (EHSI)
what does EADI screen display?
attitude in pitch and roll
flight director bars, ILS glideslope, localiser deviation
at what height will EADI display radio altitude in digital/analog format?
digital: 1000 - 2500 ft
analog: below 1000ft
colour code for display feature of EADI
warning - red
caution - amber
earth - brown
sky - blue
engaged modes - green
ILS deviation pointer - purple
flight bar - purple/green
colour code for precipitation im mm/hr
black: 0 - 1
green: 1 - 4
yellow: 4 - 12
red: 12 - 50
purple: above 50
colour code for turbulence
white
what does a electronic horizontal situation indicator do?
display flight navigational information, 9 modes
modes of EHSI
1) map
2) ctr map
3) plan
4) full VOR/ILS
5) exp VOR/ILS
6) exp nav/full nav
what is EICAS?
engine indication & crew alerting system
what does the EICAS display on both upper and lower screen?
upper screen: primary display (EPR, N1, EGT)
lower: secondary display (abnormal engine ops)
2 page of the EICAS
operational page: during flight
maintenance page: for fixing, only on ground
what is ARINC?
aeronautical radio incorporated
provide standard guidelines for electronic systems
2 common data bus standard of ARINC
ARINC 429 & 629
what is BITE?
built in test equipment
purpose of BITE
provide fault detection/isolation & operational verification after defect repair
how does BITE work?
defect sensed > sends control signal to isolate defect
systems that BITE works on
EICAS
VHF & HF comms radio
altimeter
transponder
operating modes for electronic centralised aircraft monitoring (ECAM)
normal, advisory, failure, manual
what is FMS?
flight management system
purpose of FMS
reduce crew workload, achieve best fuel economy
what does the FMS do?
guides the aircraft navigation vertically & laterally to achieve planned altitude
what does the FMS need to operate?
navigational data from systems like VOR ILS DME
how does the flight crew link with the FMS?
control display unit (CDU)
what does the CDU consist of?
1) screen
2) line select keys
3) annuciators
4) alpha-numeric numbers
5) function and mode keys
