Definitions Flashcards
AFCS
Automatic flight control system.
Contains autopilot flight director system F/D) and auto throttle system (A/T)
MCP
Mode control panel
AFDS consists of
Three autopilot flight director computers (AFDCs) and a MCP
FMA
Flight mode annunciator
LNAV
Lateral navigation. Simply azimuth navigation without vertical guidance.
ASTU
Automatic stabilizer trim unit. Aircrafts elevator position feed into ASTU, allowing ASTS TO CORRECTLY TRIM THE AIRCRAFT
EFIS
Electronic Flight Instrument System.
Displayed in two separate screens,
the ADI (attitude director indicator) and HSI (horizontal situation indicator) Boeing
Primary flight display PFD & navigation display ND Airbus.
Also contains;
- control panel symbol generator so that drive signals may be switched to either the left or right display units.
- remote light sensor unit
PFD
Primary flight display
ND
Navigation display
EADI
Electronic attitude director indicator. Also known as PFD
EHSI
Electronic horizontal situation indicator also known as ND
HUD
Head Up Display.
System comprised of
HUD computer,
- overhead unit projector,
- a combiner
- a control panel
- an annunciator panel
EVS
Enhanced vision system.
both long wave and short wave Infrared camera for early detection of visual references.
Decreases operating costs by mitigating go rounds
SVS
Synthetic vision system.
Uses high precision navigation, attitude, altitude, and terrain databases to create a realistic view of the outside world.
ECAM
Electronic centralized aircraft monitoring-airbus.
Incorporates all features of EICAS.
HAS HE ADDED FEATURE OF PROVIDING CREW WITH CORRECTIVE ACTIONS TO ANY FAULTS THAT MAY ARISE, AS WELL AS SYSTEM LIMITATIONS AFTER THE FAILURES
TAWS
Terrain awareness and warning system
GPWS
Ground proximity warning system
5 modes
1-excessive descent ride
2-excessive terrain closure rate
3 altitude loss after takeoff or go around
4- and safe to rain clearance with the aircraft not in landing configuration
5- aircraft too low during ILS approach
EGPWS
Newly developed with seven modes. 1-excessive descent ride 2-excessive terrain closure rate 3 altitude loss after takeoff or go around 4- and safe to rain clearance with the aircraft not in landing configuration 5- aircraft too low during ILS approach 6-bank angle & altitude callouts 7-windshear
Displays terrain up to 320 nautical miles away, also provides warning of 60 seconds before impact with terrain
TCAS
Traffic collision avoidance system
-TCAS II most common. Provides traffic advisories TA and resolution advisories RA.
ABLE TO COPE WITH THE TRAFFIC DENSITY OF 24 AIRCRAFT WITHIN A 5-MILE RANGE. WILL COORDINATE ESCAPES FROM UP TO THREE AIRCRAFT
SMYD
Stall Management Yaw Dampener.
Regulatory margin for activation of stall warning system is 5% above stall speed (1.05Vs)
RWS
Reactive windshear system
Detection takes place when aircraft penetrates windshear condition
PWS
Predictive Windshear system
The system is a part of the weather radar system.
Uses doppler to detect disturbed air ahead of the aircraft
CVR
Cockpit voice recorder.
Effective 10th of may 2019. CVR RECORDING TIME INCREASED FROM 30 MINUTES TO 2 HOURS.
Connected to aircraft power, also has backup battery.
FDR
Flight data recorder.
New Zealand aviation legislation states it must be capable of recording and storing 25 hours of data in digital form.
Must be fully automatic, recording from engine startup to shutdown.
AIDS
Aircraft integrated data system
AHRS
Attitude heading reference system.
contains three rate gyros to measure angular aircraft motion in the pitch roll and Yaw axis. Three accelerometers to measure aircraft linear motion along longitudinal, lateral and vertical axis of the aircraft.
CDU
Control display unit.
Interface between pilots and the flight management system (FMS)
ANP
Actual navigation performance. Aircraft must have ANP equal to or less than RNP.
RNP
Required navigation performance
TMC
Thrust management computer
RLG
Ring laser Gyro.
Operates on the principle of relative movement between two laser beams. As opposed to operating on the property of inertia
IRS
Inertial reference system
Ring laser Gyro paid with air data computer form ADIRU (AIR DATA INERTIAL REFERENCE UNIT)
ADIRU
Air data inertial reference unit
FANS
Future Air Navigation System
CNS/ATM
Communications, Navigation and Surveillance systems. Employs satellite navigation systems together with various levels of automation, applied in support of a seamless global air traffic management system
ACARS
Aircraft communications, addressing and reporting System
a digital link system used to transmit messages between the aircraft and ground stations.
CPDLC
Controller pilot data link communications.
MU/MCU
Management unit / communications management unit
AAC
Airline administrative control
AOC
Aeronautical operational control
SATCOM
Satellite communications System
ADS-B
Automatic dependent surveillance-broadcast.
ADS-C
Automatic dependent surveillance-contract. Three types of contracts: 1. Periodic contract 2. Event contract 3. Demand contract Uses GPS and ADS-C unit.
MLAT
Multilateration.
Similar to GPS. MLAT uses receiver stations placed at strategic locations around an airport. Uses SSR transponder transmissions to calculate range from different receiver stations.
PBN
Performance Based Navigation
SBAS
Satellite-based augmentation system
GNSS
Global network of satellite systems
CDO
Continuous descent operations
CCO
Continuous climb operations
MON
Minimum Operating Network
OBPMA
On board performance monitoring and alerting
RNAV
Area navigation
RNAV 10 purpose
An RNAV specification for use in oceanic and remote continental airspace
RNAV 5 (also called BRNAV) purpose
An RNAV specification that can be used for aircraft using higher level airspace. USED IN EUROPE SINCE 1998
RNAV 1 and RNAV 2
RNAV 1 in terminal airspace.+/-1nm 95 % of time
RNAV 2 in en route a space. +/-2nm 95% of time
RNAV 1 used for domestic terminal airspace for arrival departure procedure.
RNAV 2 for use in domestic enroute airspace.
AFDC
Autopilot flight director computer
VOR
Very high frequency omnidirectional radio range
SBAS
Satellite based augmentation system
RF
Radius to fix
RAIM
Receiver autonomous integrity monitoring
MNPS
Minimum navigation performance specification
MCDU
Multifunction control and display unit
GRAS
Ground-based Regional augmentation system
GBAS
Ground-based augmentation system
APV
Approach procedure with vertical guidance
ABAS
Aircraft based augmentation system
EICAS
Engine indicating a crew alerting system (Boeing)
