Advanced Instruments Flashcards
What are the main outputs of the radio altimeter ?
GPWS- ground proximity warning system
TCAS - Traffic collision alert system
Autopilot- go around, ILS deviation, autoland
What is wave frequency of the signal for radio altimeter ?
4300 SHZ
By how much does the wave frequency modulate ?
+/-50 MHZ
How wide is the radio altimeter beam width ?
30-60 degrees
How long is the navigational database valid for ?
28 day period
What are the two display types on EFIS ?
CRT- cathode ray tube
LCD- liquid crystal display
What is EADI ?
Electronic attitude director indicator.
This is your primary flight display
What is EHIS ?
Electron horizon indicator system
The is your Nav screen
How is your FMS information displayed ?
On a EFIS (electronic flight information system) via a symbol generator
What are the colours of the EFIS display ?
Green- current active, engaged modes
White- Armed modes, range scales, current status and data.
Magenta- Current route and fly to info
Cyan- general non important and background information
Black- background or OFF
Red- warnings
Amber- Alerts
What are the types of display available for EHSI or NavData ?
MAP
VOR
Approach/ILS
What language do radios get programmed in ?
Octal - 1 to 8
What is the software used in computers ?
RTCA/DO-1788
EUROCAE ED-12B
What are the lateral modes for flight path mode ?
HDG VOR-tracks cone of confusion LOC - localiser - ILS LNAV - follows FMS lateral position plan Rollout - keeps centre line on auto land
What are the 3 control laws ?
Normal - standard law used. High protection
Alternate - No AP, fair bit of protection
Direct - direction relationship. No protection
Law keep throughout flight envelope
What are the two actuators used ?
Series actuator - Airbus: control stick remains in static position when control surface is moving.
Parallel actuator - Boeing: control column moves with control surface
What are the components of the AP?
Think AACCSS
Actuators Amplifiers Computers Comparators Servo actuators Sensors
What is size of surface deflection about ?
A/C attitude.
Size error
Rate of error
Rate of deviation
What are the inputs to stall warning computer ?
AOA ADC CONFIG IRS THRUST AIR AND GROUND LOGIC
What is the CAT 1 decision height and RVR ?
200ft and 550m
What is the CAT 2 decision height and RVR ?
100ft and 350m (RVR)
What is the CAT 3(A) decision height and RVR ?
50ft and 200m
What is the CAT 3(B) decision height and RVR ?
0ft and 75m
What is the CAT 3(C) decision height and RVR ?
0ft and 0m
What is the name of the system which controls the older auto-throttle ?
Hydro-mechanical engine control unit (MECU)
Calculations done by:
Power management computer (PMC)
What is the name of the system which controls the new engine and auto throttle system ?
FADEC - full authority digital engine control
