Avionics/Electrical Flashcards
What does barometric altimeter use to indicate altitude above sea level
Barometric altimeter uses pitot static pressure to indicate altitude above sea level
What does the radar altimeter use to indicate altitude above ground level
Radio echoes
How is the Azimuth defined
Defined as the angular position or bearing in a horizontal plane
How is the azimuth normally measured
Clockwise from true north
Bearing
Angular position of an object from a reference point
Range
Distance of an object
Heading
Actual orientation of the longitudinal axis
True heading
Direction measured by true north
Magnetic heading
Uses the direction of the earths magnetic field as a reference point
Relative heading
Uses current direction that an object is facing a 0/360 azimuth alignment
What are the advantages of fiber optic cables
Improved system performance Immunity to electrical noise Signal security Improved safety Electrical isolation Reduced size and weight Environmental protection
What is the purpose of VHF/UHF
Very high frequency/ ultra high frequency: used to communicate with other aircraft or ground stations
What is the purpose of IAS
Intercommunication audio system: provides amplification and routing of audio signals between cockpit and ground crew
What are CNI controls
Threat warnings
Weapon tones
Voice alerts
What is the purpose of the TACAN
Tactical air navigation: determines the relative bearing and slant range distance from ground to aircraft
INS
Inertial navigation system: self contained, fully automatic dead reckoning navigation system.
ARI
Attitude reference indicator: self contained pitch and roll reference system, electronically driven.
ILS
Instrument landing system
All weather guidance system
What does the pitot static system measure
Temperature
AOA
Angle of attack, shows the approach of angle
AOAT
Angle of attack transmitters: measures the difference between the longitudinal axis and airstream
ADC
Aircraft data computer: receives inputs from aircraft sensors
Data link
Two way UHF communication link connecting aircraft data with the ship
RADAR
Radio detection and ranging provides A/A (air to air) and A/G (air to ground) modes
DDI
Digital display indicators : provides night vision image system
UFCD
Up front control display: displays aircraft data
MPCD
Multipurpose color display
TAMMAC
Tactical aircraft moving map capability
DFIRS
Deplorable flight incident recorder: door 300, lasts for 72 hours
What is the function of AFCS
Automatic flight control system: provides autopilot and automatic throttle control
FIRAMS
Flight incident recorder and monitoring system: monitors engine and airframe operational status
What does the electrical power system consist of
2 generators
2 transformer rectifiers
1 battery with charger
D/C battery (maint battery) supplies how much power?
28vdc
A/C generators supply how much power
115/200vac with 3 phases of electrical power supplying 28vdc
