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MASTER TABLE – AVIONICS SYSTEMS IN MODERN MILITARY AIRCRAFT

Category	System / Item	Typical Function in Aircraft
Communication Systems	VHF/UHF radios	Air-to-air and air-to-ground voice communication
	HF communication system	Long-range communication (beyond line of sight)
	SATCOM	Satellite-based communication
	Intercom (ICS)	Internal crew communication
	Data link terminals	Secure digital communication between aircraft
	Secure voice systems	Encrypted communication
Identification Systems	IFF (Identification Friend or Foe)	Identifies friendly aircraft using transponder codes
	Mode S transponder	Aircraft identification in controlled airspace
	Military crypto IFF	Secure identification in combat
Navigation Systems	INS (Inertial Navigation System)	Self-contained navigation using gyros/accelerometers
	GPS / GNSS	Satellite-based positioning
	TACAN	Tactical air navigation (military)
	VOR/ILS	Conventional radio navigation and landing
	Radar altimeter	Measures height above ground
	Doppler navigation system	Velocity and drift measurement
Flight Control & Guidance	Flight Control Computer (FCC)	Processes pilot inputs and controls aircraft
	Fly-by-wire system	Electronic flight control
	Autopilot system	Automatic flight control
	Flight Director	Provides guidance cues
Surveillance & Radar Systems	Airborne radar (Pulse-Doppler, AESA)	Target detection, tracking
	Weather radar	Detects weather conditions
	Ground mapping radar	Terrain imaging
	SAR (Synthetic Aperture Radar)	High-resolution ground imaging
Electronic Warfare (EW)	RWR (Radar Warning Receiver)	Detects enemy radar emissions
	ECM (Electronic Countermeasures)	Jamming enemy radar
	ECCM	Counter-countermeasures
	MAWS (Missile Approach Warning System)	Detects incoming missiles
	Chaff/flare dispensing system	Countermeasure deployment
Mission Systems	Mission computer	Central processing of combat systems
	Stores Management System (SMS)	Controls weapons and stores
	Weapon aiming system	Targeting and firing solutions
	HUD (Head-Up Display)	Displays flight/target data
	HMD (Helmet Mounted Display)	Pilot head-tracked targeting
Sensor Systems	IRST (Infrared Search and Track)	Passive target detection
	EO/IR sensors	Electro-optical/infrared imaging
	Laser rangefinder/designator	Target marking
	FLIR (Forward Looking Infrared)	Night vision imaging
Air Data Systems	ADC (Air Data Computer)	Computes airspeed, altitude, Mach
	Pitot-static system	Measures pressure data
	AoA sensors	Angle of attack measurement
Recording & Monitoring	Flight Data Recorder (FDR)	Records flight parameters
	Cockpit Voice Recorder (CVR)	Records cockpit audio
	HUMS	Health and Usage Monitoring
Power & Interface Electronics	Avionics power supply	Regulated electrical power
	Inverters / converters	AC/DC conversion
	Data buses (MIL-STD-1553, ARINC)	System communication backbone
Display Systems	MFD (Multi-Function Display)	Displays navigation, radar, systems
	Glass cockpit displays	Integrated digital interface
	Standby instruments	Backup displays
Landing & Approach Systems	ILS receiver	Precision landing
	PAR (Precision Approach Radar)	Ground-controlled landing guidance
	MLS (Microwave Landing System)	Advanced landing system
Collision & Safety Systems	TCAS	Collision avoidance
	GPWS / TAWS	Terrain warning
	Emergency locator transmitter (ELT)	Crash location beacon
Network-Centric Warfare Systems	Link 16	Tactical data sharing
	Integrated battlefield network	Real-time combat data exchange
	Sensor fusion systems	Combines multiple sensor inputs
Special Military Systems	Nuclear weapon interface (if applicable)	Strategic payload control
	Reconnaissance pods	Surveillance missions
	UAV control interface	Drone coordination

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Practical Engineering Insight

From a real aircraft systems perspective:

• Modern fighters are essentially “flying computers”
• The mission computer + data bus is the backbone
• Systems like:
• IFF
• Radar
• EW suite
• Data link

are tightly integrated — not standalone anymore

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Real-World Observation (From Experience Mindset)

If you’ve worked around avionics or QC:

• Failures are rarely dramatic — usually:
• connector issues
• wiring faults
• grounding/bonding problems
• LRU (Line Replaceable Unit) failures
• Many “system failures” are actually:
• signal errors
• calibration drift
• or data bus communication faults

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Important Engineering Note

Avionics are designed as:

LRUs (Line Replaceable Units)

Meaning:

• Quick removal and replacement
• Minimal troubleshooting at aircraft level
• Deep repair at specialized labs

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