Jane's Avionics

An accurate review of important civil and military avionics systems in production around the world today. Jane’s Avionics includes all avionics types from communications and sensors, to data processing/management and display systems.

Content Structure
Jane’s Avionics describes airborne electronic equipment designed civilian and military aircraft. To be included within this title, equipment should be operated in manned aircraft, characterised by significant electronic content, and be in development, production or, if no longer in production, in widespread service. Equipment which is in service in legacy platforms has been archived in order to maintain a manageable overall number of entries in the Yearbook. This archive is accessible through the Online service. The exception to the above is equipment which, in the opinion of the editor, is significant and therefore relevant to the reader.

Avionics equipment designed specifically for Unmanned Aerial Vehicles (UAVs) is covered in Jane’s Unmanned Aerial Vehicles, although this distinction is becoming increasingly difficult to make in view of the development of Unmanned Combat Air Vehicles (UCAVs), which may be regarded as combat aircraft operated by a remote, ground-based pilot. Systems that are applicable to both manned and unmanned aircraft will continue to be found in Jane’s Avionics.

Structure
Supporting the main sections of Jane’s Avionics, a leading Analysis section contains technical overviews covering some of the core technologies to be found in the book, namely, Digital Datalinks, Airborne Radar, Electro-Optic systems and Helmet Mounted Display Systems (HMDS); these are intended to provide useful background information regarding some of the fundamentals of civil and military avionics systems.

The main body of Jane’s Avionics is divided into six main sections that are easily identifiable to the casual or expert reader alike:

• Avionic Communication, Navigation and Identification (CNI) Systems - This section makes use of a commonly used acronym in the aerospace industry, CNI, which covers a diverse range of equipment including aircraft radios and transponders. In order to further aid the reader, this main section is further divided into subsections, covering communications, navigation, combined comm/nav and safety of flight systems.
• Flight/Mission Management (FM/MM) and Display Systems -

This section includes most equipment which directly interfaces with the crew, such as electronic and analogue displays, Head Up Displays (HUDs) and other Man-Machine Interface (MMI) systems.

• Airborne Electro-Optic (EO) Systems - This section contains all synthetic and enhanced vision systems, including Near-, Mid- and Far Infra-Red (IR) systems, such as Aviators’ Night Vision Imaging Systems (ANVIS) and Pilot’s Night Vision Systems (PNVS).
• Airborne Radar Systems - This section includes all types of airborne platform-integrated and podded radar systems.
• Airborne Electronic Warfare Systems - This section covers important Electronic Warfare (EW) systems, including RF jammers, Counter Measures Dispensing Systems (CMDS), radar and missile approach warners, Towed Radar Decoys (TRDs) and Electronic Support (ES) systems, such as ELINT, COMINT and SIGINT equipment.
• Aircraft Control and Monitoring Systems - The last main section covers Flight Control (FC), autopilot and onboard monitoring and Fault Warning Systems (FWS). Equipment and systems are listed alphabetically under country of origin, which is also entered alphabetically.

After the six main sections and prior to the various indexes, Aircraft Cockpits provides the reader with reference and comparison of modern and legacy cockpit configurations, together with descriptions of important features.

After the main text are three indexes - a contractors index, an alphabetical index and an index that correlates entries to contractors. The contractors index contains details of the name, address and, where available, the telephone/fax number/website of each contractor represented in the book.

The alphabetical index lists every entry in alphabetical order.

The manufacturers index lists entries alphabetically by contractor.

There is no delineation in Jane’s Avionics between civil and military systems, reflecting current trends in the utilisation of Commercial Off-The-Shelf (COTS) equipment in military applications wherever possible, thereby minimising acquisition and through-life costs. Noting the global use of the terms ‘airborne’ and ‘aircraft’ in the subsection titles, which must be surely taken ’as read’ in a book detailing avionic equipment, the reason lies in the integrated nature of the Jane’s Defence Equipment portfolio and the online medium - users searching for particular equipment capabilities may not necessarily know of its intended application.

Record Structure
Within each main section, entries are arranged alphabetically by country of manufacture. Entries are structured as follows:

• Title
• Type - describes the group or classification of the equipment by role and/or physical characteristic(s).
• Description - contains a technical description and information regarding functionality.
• Specification - lists the main technical parameters and physical characteristics.
• Status - contains information on development, production and operational status.
• Contractor - details prime and relevant sub contractors.

Of particular note to manufacturers, the type headings may not exactly match the detailed function of the system in question
for taxonomy purposes, in order to keep the number of type groupings manageable and members of those grouping at a reasonable and balanced level, it is sometimes necessary to describe a piece of equipment with a more generic type heading. In all such cases I have taken care to ensure that the type description will capture that piece of equipment and all similar.

Images
The reader will find that parts of the book contain colour images in order to more effectively convey the information therein - a large colour image is vital to adequately describe the properties of a full-colour electronic display, for example. Images are annotated with a seven-digit serial number which uniquely identifies them within Jane’s image database. The widespread use of colour in relevant areas of Jane’s Avionics continues, with further expansion of the Aircraft Cockpits section and update of the technical overviews to maintain pace with the development of the technologies.

Sections

• Airborne electro optic (eo) systems
• Airborne electronic warfare (ew) systems
• Airborne radar systems
• Aircraft cockpits
• Aircraft control and monitoring systems
• Aircraft identification and safety of flight (sof) systems
• Aircraft navigation systems
• Analysis
• Avionic communications systems
• Civil/cots, cns, fms and displays
• Combined cni systems
• Contractors
• Flight/mission management (fm/mm) and display systems
• Glossary
• Military cns, fms, data and threat management
• Military display and targeting systems
• Military targeting, display and stores management
• Technical analysis

Commonly Used Terms
1. Air intercept missile, 2. Air traffic control beacon/IFF/Mk XII system, Above ground level, Above mean sea level, ACAS implementation group, Accident data recorder, Acoustic data vessel identification, classification and explanation, Acoustic sensor signal generator, Acoustic simulation unit, Active electronically scanned array, Active gated television, Active matrix liquid crystal display, Active noise cancellation, Ada-based integrated control system, Adaptive multidimensional integrated control system, Adaptive surface interface terminals, Advanced airborne expendable decoy, Advanced air-to-air missile, Advanced architectures for airborne arrays, Advanced avionics testbed, Advanced capability, Advanced control technology for integrated vehicles, Advanced datalink for guided platforms, Advanced digital dispensing system, Advanced digital engine control system, Advanced digital optical control system, Advanced fibre heater, Advanced fighter technology integration, Advanced flight management computer system, Advanced general purpose processor element, Advanced GPS inertial navigation technology, Advanced image processing terminal, Advanced intelligence tape, Advanced interference blanker Unit, Advanced magnetic helmet-mounted sight, Advanced maintenance recorder system, Advanced medium-range air-to-air missile, Advanced metal evaporated, Advanced micro-electronics converter, Advanced missile detection system, Advanced mission planning aid, Advanced modular processor, Advanced multisensor inertial measurement unit, Advanced narrowband digital voice terminal, Advanced optical countermeasures, Advanced optical position transducer, Advanced panoramic helmet interface demonstrator system, Advanced phased-array radar, Advanced programmable signal processor, Advanced quick look, Advanced radar processing system, Advanced radar warning system, Advanced range instrumentation aircraft, Advanced Research Projects Agency (US), Advanced rotorcraft technology integration, Advanced self-protection integrated suite, Advanced strategic and tactical expendables, Advanced tactical air reconnaissance system, Advanced tactical communications system, Advanced tactical fighter, Advanced tactical targeting technology, Advanced targeting forward looking infra-red, Advanced threat infra-red countermeasures, Advanced threat radar jammer, Advanced transport operations system, Advanced warning of active radar emissions, Adverse weather aerial delivery system, Advisable radar service area, Advisory group on the reliability of electronic equipment (US), Aerial camera electro-optical magazine, Aerial survey control tool, Aero industry development centre, Aeronautical earth station, Aeronautical high-gain antenna, Aeronautical intermediate-gain antenna, Aeronautical mobile satellite service, Aeronautical radio incorporated, Aeronautical telecommunications network, Agile beam system, Air combat manoeuvring installation, Air data and inertial reference system, Air data inertial reference unit, Air data sensor unit, Air defence alerting device, Air force mission support system, Air force satellite, Air force satellite communications, Air interception, Air navigation multiple indicator, Air route traffic control centre, Air supply controller/test unit, Air traffic control, Air traffic control radar beacon system, Air vehicle interface and control system, Air-based electronics, Airborne active dipping sonar, Airborne advanced communications system, Airborne adverse weather weapon system, Airborne battlefield command and control centre, Airborne collision avoidance system, Airborne computing and communications system, Airborne crew trainer, Airborne digital automatic collection system, Airborne early warning, Airborne early warning/ground environment integration segment, Airborne electronic library system, Airborne electronic terrain-mapping system, Airborne electronics unit, Airborne electro-optical special operations payload, Airborne flight information system, Airborne integrated communications system, Airborne laser, Airborne laser radar mine sensor, Airborne laser range-finder and designator, Airborne LIDAR bathymeter, Airborne low-frequency sonar, Airborne missile control system, Airborne multi-application computer, Airborne multiservice/multimedia communications system, Airborne radar demonstrator system, Airborne radar jamming system, Airborne radio and intercom control, Airborne recorder for IRLS and EO sensors, Airborne search target attack radar, Airborne seeker evaluation test set, Airborne self-protection jammer, Airborne separation assurance system, Airborne shared aperture programme, Airborne standoff radar, Airborne strain counter, Airborne surveillance airborne control, Airborne surveillance and target acquisition radar, Airborne surveillance ground control, Airborne surveillance testbed, Airborne surveillance warning and control, Airborne tactical data system, Airborne targeting low-altitude navigation thermal Imaging and cueing, Airborne vehicle equipment, Airborne video data acquisition system, Airborne videotape recorder, Airborne warning and control system, Aircraft carrier, Aircraft data acquisition, analysis and presentation system, Aircraft data interface device, Aircraft environment surveillance system, Aircraft fatigue data analysis system, Aircraft integrated data suite (or system), Aircraft piloting inertial reference system, Aircraft products data management computer, AIRLINK gateway unit, Air-to-air interrogator control panel, Air-to-ground engagement simulator, Alerte détection et localisation des emetteurs, All light level television, All-bus instrumentation system, Alternate airborne command centre, Alternating current, Ambient sea noise indication, American national standards institute, American Standard Code for Information Interchange, Ampère, Amplitude modulation, Analogue autoland improvement programme, Angle rate bombing set, Anti-air warfare, Anti-aircraft artillery, Anti-radiation missile, Anti-ship missile defence, Anti-spoofing, Anti-submarine warfare, Anti-surface vessel, Anti-surface vessel warfare, Anti-surface warfare, Anti-tank variant of Tiger helicopter, Appaeillage de télévision sur aéronef léger, Application specific integrated circuit, Area navigation, ARINC standards interface, Armament control and delivery system, Armament control indicator, Armament control system, Armament signal data converter, Armoured fighting vehicle, Army helicopter improvement programme, Associative processor, Assumption of control (message), Attitude and heading reference system, Attitude heading (reference) system, Attitude, heading and rate of turn indicating system, Audio amplifier units, Audio frequency, Audio frequency amplifier, Audio junction box, Australian industrial participation, Auto gate, Auto gate area, Auto power reserve, Automated communications and intercom distribution system, Automated en-route air traffic control, Automatic brightness control, Automatic carrier landing system, Automatic communications and reporting system, Automatic communications processor (control), Automatic dependant surveillance broadcast, Automatic dependant surveillance contract, Automatic direction-finder, Automatic exposure control, Automatic flight control augmentation system, Automatic flight control system, Automatic flight director system, Automatic flight management system, Automatic frequency control, Automatic gain control, Automatic gain ranging amplifier, Automatic link establishment, Automatic target handover system, Automatic terminal information service, Automatic test equipment, Automatic tracking laser illumination system, Automatic voice alert device, Automatically deployed emergency locator transmitter, Autonomous air combat manoeuvring installation, Autonomous integrity monitored extrapolation, Autonomous precision approach and landing system, Autonomous terminal homing, Autostabilisation equipment, Auxiliary (or advanced) communication navigation and identification panel, Auxiliary data acquisition unit, Auxiliary data transfer unit, Auxiliary power unit, Aviator's night vision imaging system, Avionic keyboard unit, Avionics bay interface unit, Avionics integrated maintenance expert system, Avionics system management unit, Azimuth range indicator, Basic area navigation, Basic flight data acquisition system, Basic terminal unit, Bathythermograph, Battery back-up unit, Bearing compartment scavenge value, Bearing distance indicator, Bearing, distance and heading indicator, Beat frequency oscillation, Beyond the horizon, Beyond visual range, Bi-phase shift keyed, BIT error rate, Bits per inch, Bleed valve control unit, Built-in test, Built-in test equipment, Bus system interface unit, Cabin air conditioning and temperature control system, Cabin display computer, Cabin pressure control system, Cabin pressure controller, Cabin public address, Cabin temperature controller, Cadmium mercury telluride, Card maintenance data recorder, Cargo utility GPS receiver, Carrier aircraft inertial navigation system, Cartridge active miniature electromagnetic, Category, Cathode ray tube, Central air data computer, Central maintenance function, Central maintenance panel, Central processing unit, Central tactical system, Centralised fault display interface unit, Centralised fault display system, Centrally integrated test system, Centre d'Essais Aéronautiques de Toulouse, Centre d'Essais de Vol, Centre of gravity, Centre of gravity control computer, Chaff and flare dispenser control unit, Chaff and flare dispensing, Charge coupled device, Chemical oxygen iodine laser, Chrysler Technologies airborne systems, Circular error of probability, Civil Aviation Authority (UK), CNI management system, Coarse acquisition, Cobra nite, Cockpit display of infra-red reconnaissance system, Cockpit display of traffic information, Cockpit laser designation system, Cockpit management computer, Cockpit voice and flight data recorder, Cockpit voice recorder, Cockpit voice recorder/digital flight data recorder, Coherent all radio band sensing, Coherent laser radar airborne shear sensor, Collaborative decision making, Combined altitude radar altimeter, Combined electronic display and map, Combined interrogator/transponder, Combined map and electronic display, Comité Consultatif International des Radiocommunications, Command activated multibeam sonobuoy, Command and stability augmentation system, Command post modem/processor, Command, control and communications countermeasures, Command, control, communications and intelligence, Command, control, communications, computers and intelligence, Commercial microwave landing system avionics, Commercial-off-the-shelf, Common avionics baseline, Common integrated broadcast service-modules, Common integrated processor, Common missile warning system, Common strategic Doppler, Communication control group, Communication/navigation equipment controls, Communications high-accuracy airborne location system, Communications intelligence, Communications navigation surveillance, Communications navigation surveillance/aeronautical telecommunications network, Communications navigation surveillance/air traffic management, Communications radar exciter, Communications security, Communications subsystem, Communications system control group, Communications, navigation and identification, Communications/navigation interface unit, Compact infra-red television system, Compact multipurpose advanced stabilised system, Compact thermal imaging module, Complementary metal oxide silicon, Computer module system, Computer processor, Computer-aided design, Computer-based training, COMSEC module, Conduit nuit, second-generation, helicopters, Conformal countermeasures system, Constant false alarm rate, Contingency airborne reconnaissance system/deployable ground station, Continuous wave, Continuous wave illuminator, Continuously computed impact line, Continuously computed impact point, Control and display navigation unit, Control and display system, Control by light, Control Indicator, Control indicator - front, Control indicator - side, Control panel unit - front, Control panel unit - side, Control stick assembly, Control terminal unit, Control unit, Control wheel steering, Controlled flight into terrain, Controlled reception pattern antenna, Controller-pilot datalink communications, Conventional mission upgrade programme, Convertible laser designation pod, Co-operative engagement capability, Correlation detection and ranging, Cossor interrogation and reply cryptographic equipment, Countermeasures computer, Countermeasures dispensing system, Countermeasures receiver, Coupled cavity travelling wave tube, Course deviation indicator, Covert penetration radar, Covert penetration system, Crash protected video recorder, Crash survivable memory unit, Crash survivable voice recorder, Crash/maintenance recorder system, Critical design review, Cruise missile radar altimeter, Cylinder head temperature, Data acquisition and processing unit, Data acquisition and recording unit, Data collection and processing system, Data encryption standard, Data entry display, Data insertion device, Data interface unit, Data loader system, Data management module, Data multiplexer sub-unit, Data processing system, Data processor group, Data recording cartridge, Data retrieval unit, Data storage set, Data storage unit receptacle, Data transfer cartridge, Data transfer device, Data transfer equipment, Data transfer interface unit, Data transfer module, Data transfer network, Datalink pre-processor, Day/night airborne thermal sensor, DCMS audio interface, DCMS bus coupler, DCMS bus interface, DCMS crew member interface, DCMS interphone interface, DCMS universal configuration key, decibel(s), decibels ×10-3, Defence information infrastructure common operating environment, Defence satellite communication system, Defense Advanced Research Projects Agency (US) (now ARPA), Defensive aids subsystem, De-icer timer unit, Demand assigned multiple access, Demodulation of noise, Department Of Defense (US), Deployable flight incident recorder, Deployable flotation unit, Desired mean point of impact, Détection identification analyse des nouveaux émetteurs, Detection of laser emissions, Detection of laser, radar and millimetric threats, Detectivity, Diagnostic and condition monitoring, Differential global navigation system, Differential GPS, Digital air data computer, Digital airborne radar threat simulator, Digital audio record and playback, Digital audio tape, Digital automatic flight control system, Digital automatic flight inlet control system, Digital autopilot/flight director, Digital avionics information system, Digital communication management system, Digital computer complex, Digital display indicator control, Digital display processing system, Digital electronic control, Digital electronic engine control, Digital electronic flight control system, Digital engine control system, Digital engine control unit, Digital feature analysis data, Digital flight control computer, Digital flight data acquisition unit, Digital flight data recorder, Digital flight guidance computer, Digital information transfer system, Digital instantaneous frequency measurement, Digital integrated logic, Digital land mass system, Digital linear tape, Digital map display generator, Digital map generator, Digital onboard processor, Digital phase shift keying, Digital processing unit, Digital pulse code modulation, Digital radar display, Digital radio frequency memory, Digital signal data converter, Digital tactical system, Digital tape format, Digital terrain elevation data, Digital terrain management and display, Digital vertical obstruction file, Direct current, Direct digital synthesis, Direct memory access, Direct voice input, Direction of arrival, Directional acoustic frequency analysis and recording, Directional command activated sonobuoy system, Directional gyro, Directional infra-red countermeasures, Direction-finding, Disk drive unit, Disk operating system, Dispense interface microprocessor, Displacement gyro assembly, Display and sight helmet, Display electronics unit, Display interface control unit, Display processor, Display processor/mission computer, Display unit, Display video recording system, Displayed data video recorder, Distance measuring equipment, Distance measuring equipment - precision, Distributed-architecture infra-red sensor, Doppler velocimeter/altimeter, Doppler velocity sensor, Downlink aircraft parameters, Drum auxiliary memory sub-unit, Dual crew station unit, Dual-port random access memory, Dynamic random access memory, ECI airborne relay system, Economic exclusion zone, Effective radiated power, Electrical flight control unit, Electrical load management system, Electrical power management system, Electrically alterable read-only memory, Electrically erasable programmable read-only memory, Electrically powered actuator design, Electroluminescent, Electromagnetic, Electromagnetic compatibility, Electromagnetic interference, Electromagnetic pulse, Electronic attitude director indicator, Electronic centralised aircraft monitor, Electronic combat and reconnaissance, Electronic combat integrated pylon system, Electronic control amplifier, Electronic control box, Electronic co-pilot, Electronic counter-countermeasures, Electronic countermeasures, Electronic engine controls, Electronic flight bag, Electronic flight control system, Electronic flight instrumentation system, Electronic horizontal situation indicator, Electronic Industries Association (US), Electronic instrument system, Electronic integrated protection shield, Electronic intelligence, Electronic location finder, Electronic multiplexing, Electronic order of battle, Electronic programmable logic device, Electronic resource system, Electronic storage unit, Electronic support measures, Electronic warfare, Electronic warfare management system, Electronic warfare prime indicator, Electronically agile radar, Electronics unit, Electro-optic, Electro-optic sensor system, Electro-optical countermeasures, Electro-optical viewing system, Electro-optical/infra-red viewing system, Electrostatic engine monitoring system, Electrostatically suspended gyro, Electrothermal ice protection system, Elevator and aileron computer, ELINT identification and operating system, Embedded and special application, Embedded GPS-inertial, Emergency locator beacon, Emergency locator transmitter, Emitter coupled logic, Emitter identification, End-state WAAS (wide area augmentation system), Engine analyser and synchrophase Unit, Engine analyser unit, Engine data interface unit, Engine data multiplexer, Engine indication and crew alerting system, Engine monitor multiplexer unit, Engine monitoring system computer, Engine monitoring unit, Engine performance indicator, Engine pressure ratio, Engine pressure ratio transmitter, Engine supervisory control, Engine transient pressure unit, Engine vibration monitor, Engineering change proposal, Engineering model derivative, Enhanced communications, navigation and identification, Enhanced control and display unit, Enhanced flight management computer system, Enhanced general avionics computer, Enhanced main display unit, Enhanced moving target indicator, Enhanced radar warning equipment, Enhanced terrain masked penetration, Enhanced vision Sensor, Enhanced-miniaturised airborne GPS receiver, Entry monitor system, Environmental control system, Equivalent background illumination, Erasable programmable read-only memory, Erasable read-only memory, Error detection and correction, Escort variant of Tiger helicopter, Estimated time en route, Estimated time of arrival, European Air Traffic Control Harmonisation and Integration Programme, European Air Traffic Management System, European Civil Aviation Conference, European Geostationary Navigation Overlay System, European Organisation for Civil Aviation Electronics, Eventide airborne multipurpose electronic display, EW management unit, Exercise support system, Exhaust gas temperature, Expandable reliable acoustic path sonobuoy, Expanded capability, Expanded data transfer system, Expanded quick access recorder, Expansible flight data acquisition and recording system, Extended data acquisition unit, Extra high frequency, Fan turbine inlet temperature, Far infra-red (band), Fast fourier transform, Fast time constant, Fault detection and exclusion, Fault tolerant, Fault tolerant air data inertial reference system, Fault tolerant air data inertial reference unit, Federal (US) radionavigation plan, Federal aviation administration (US), Feet, Ferranti inertial nav/attack system, Field effect transistor, Field of regard, Field of view, Fighter/reconnaissance/strike, Figure of merit, Final approach, Final approach fix, Final approach mode, Fire control/navigation panel, Fixed reception pattern antenna, Fixed target indication, Flat-panel display, Fleet electronic warfare support group, Fleet tactical readiness group, Flight control and monitoring computer, Flight control computer, Flight control data concentrator, Flight control primary computer, Flight control secondary computer, Flight control system, Flight control unit, Flight data acquisition management system, Flight data acquisition unit, Flight data entry panel, Flight data interface unit, Flight data management unit, Flight data panel, Flight data recorder, Flight data recorder/fault analyser, Flight data unit, Flight deck terminals, Flight director system, Flight guidance control panel, Flight incident recorder and aircraft monitoring system, Flight incident recorder memory unit, Flight information service, Flight management and guidance computer, Flight management and guidance system, Flight management system, Flight management unit, Flight mode annunciator, Flight service station, FLIR augmented cobra TOW sight, Floating point operations per second, Fly-by-light, Fly-by-speech, Fly-by-wire, Folding light acoustic systems for helicopters, Foot-lambert, Forward area air defence command, control and intelligence, Forward looking infra-red, Four-mode laser gyro, Four-mode laser gyro software hardware implemented partitioning, French army light aviation corps, Frequency division multiplex, Frequency modulated, Frequency modulated continuous wave, Frequency modulated interrupted continuous wave, Frequency shift keying, Fuel pump monitoring unit, Fuel quantity indication system, Fuel saving advisory system, Fuel savings advisory and cockpit avionics system, Fuel savings computer, Full aircraft management/inertial system, Full authority digital engine control, Full authority fuel control, Full function signal processor, Full operational capability, Full-scale deflection, Fully automatic compensation system, Future air navigation system, Future organic airborne early warning, Gallium arsenide, Gas generator RPM, Gas-Turbine Research Establishment (UK), Gated laser illuminator for night television, GEC Thomson airborne radar, General interface terminal, General navigation computer, General purpose control display unit, Generic expendable, Geographic information system, Giga = 1,000,000,000, Giga hertz, Global access navigation safety, Global air traffic management, Global navigation satellite sensor unit, Global navigation satellite system, Global orbital navigation satellite system, Global positioning adaptive antenna system, Global positioning and communication, Global positioning inertial reference unit, Global positioning laser inertial navigation, Global positioning system, Global positioning system sensor unit, Global positioning/inertial reference system, GPS carrier frequency (1227.6 MHz), GPS carrier frequency (1575.42 MHz), GPS embedded module, GPS guidance package, GPS integration guidelines, GPS integrity channel, GPS navigation and landing system, GPS precision code, GPS sensor module, GPS/WAAS integrity channels (GPS global positioning system) (WAAS wide area augmentation system), GPS-aided targeting system, Graphics differential engine, Graphics drawing processor, Graphics processor video interface, Graphics user interface, Greenwich mean time, Ground air transmit receive, Ground clutter reduction, Ground collision avoidance, Ground collision avoidance system, Ground earth station, Ground mapping radar, Ground moving target indication, Ground proximity warning system, Ground readout equipment, Ground support equipment, Ground-based integrity broadcast, Groundspeed, Groundspeed and drift indicator, Guardrail common sensor, Guardrail common sensor interoperability system, Hand-held thermal imager, Hands-on collective and stick, Hands-on throttle and stick, Hard disk subsystem, Harpoon airborne command, launch and control system, Harsh environment recorder, Head level display, Head-down display, Head-down display recorder, Heading, Headset receptacle panel, Head-up display, Head-up display and weapon aiming computer, Head-up display computer, Health and usage monitoring computer, Helicopter acoustic processing system, Helicopter air data system, Helicopter equipment for radar and laser detection, Helicopter flight advisory computer, Helicopter identification by infra-red detection, Helicopter identification by radar detection, Helicopter infra-red navigation system, Helicopter infra-red system, Helicopter installed television monitor recorder, Helicopter integrated defensive aids system, Helicopter integrated power and switching system, Helicopter laser warning equipment, Helicopter night vision system, Helicopter self-screening launcher, Helicopter tactical navigation system, Helitow observation system, Helmet airborne display and sight, Helmet integrated display sight system, Helmet mounting plate, Helmet optical position sensor, Helmet-mounted display, Helmet-mounted display device, Helmet-mounted display system, Helmet-mounted sighting system, Hertz, High bit rate, High frequency, High pressure, High resolution, High-accuracy inertial navigation system, High-definition TV, High-frequency data unit, High-integration air data computer, High-intensity radiated field, Highly integrated digital engine control, High-performance active sonar, High-power amplifier, High-power amplifier group, High-speed anti-radiation missile, High-speed databus, High-speed integrated circuit, High-technology testbed, High-voltage power supply unit, HIPSS interface control unit, Holographic guidance system, Holographic head-up display, Horizontal situation indicator, Hostile fire indicator, Hostile weapons location system, hour(s), Hover trim control, HUD electronics unit, Hughes improved terminal, Hughes integrated surveillance and reconnaissance system, Hybrid analogue digital, Hydraulic monitoring computer unit, Hydromechanical fuel unit, Hydromechanical unit, Hyperspectral imagery, Identification, Identification friend or foe, Identification friend or foe control panel, Identification position, IFM superheterodyne receiver, Imagery display processor, Improved airborne high-frequency radio, Improved airborne high-frequency radio nap of the Earth, Improved combat efficiency, Improved processing and display system, Improved standard attitude and heading reference system, Improved tube-launched optically tracked wire-guided (missile), inch(es), Increased capability, Independent sideband, Indicated air speed, Inductive debris monitor, Inertial measurement unit, Inertial navigation system, Inertial navigation unit, Inertial reference system, Inertial reference unit, Inertial referenced flight inspection system, Inertial sensor-based avionics, In-flight passenger entertainment and communications, Infra-red, Infra-red charge coupled device, Infra-red countermeasures, Infra-red imaging system, Infra-red linescanner, Infra-red reconnaissance system, Infra-red search and track (system), Infra-red video automatic tracking, Infra-red vision, Infra-red/ultraviolet, Initial approach mode, Initial WAAS (wide area augmentation system), Input/output, Instantaneous direction-finding, Instantaneous field of view, Instantaneous frequency measurement, Instantaneous vertical speed indicator, Institute of Electrical and Electronic Engineers (US), Instruction set architecture, Instrument flight rules, Instrument landing system, Integrated antenna detector, Integrated armament management system, Integrated avionics computer, Integrated avionics processing system, Integrated broadcast service, Integrated communications control panel, Integrated communications navigation identification avionics, Integrated communications navigation identification set, Integrated control panel, Integrated controls and avionics for air superiority, Integrated conventional stores management, Integrated conventional stores management/global positioning system, Integrated countermeasures system, Integrated defence avionics programme, Integrated defensive electronic countermeasures, Integrated design automation system, Integrated digital audio control system, Integrated electronic warfare, Integrated electronic warfare system, Integrated flight management unit, Integrated hazard avoidance system, Integrated health and usage monitoring system, Integrated helicopter electronic warfare suite, Integrated helmet and display sighting system, Integrated helmet unit, Integrated instrumentation display system, Integrated modular avionics, Integrated multisensor system, Integrated navigation aids control panel, Integrated panoramic night vision goggle, Integrated radio management system, Integrated sensor system, Integrated strike and interception system, Integrated terrain access and retrieval system, Integrated utilities management system, Integrated vehicle mission management system, Integrated vehicle subsystem controls, Intelligence and electronic warfare common sensor, Intelligence, surveillance and reconnaissance, Intelligent power control system, Intelligent power terminal, Intensified high-definition television, Intercommunications set control, Intercommunications set control unit, Interconnecting box, Interface and control, Interface electronics unit, Interface processor unit, Interferometric fibre optic gyro, Interim JTIDS message system, Intermediate frequency, Intermediate pressure, Internal FLIR targeting system, International civil air traffic organisation, International standardisation organisation, Interoperable datalink, Interphone receptacle panel, Interrogation side-lobe suppression, Interrupted continuous wave, Inverse synthetic aperture radar, IRCM self-defence system, Israeli general avionics computer, Joint advanced strike technology, Joint airborne SIGINT system, Joint airworthiness requirement, Joint direct attack munition, Joint Integrated Avionics Working Group (US), Joint precision approach landing system, Joint primary aircraft training system, Joint Program Office (US), Joint SIGINT avionics family low-band subsystem, Joint strike fighter, Joint surveillance and target attack radar system (also JSTARS), Joint tactical information distribution system, Joint tactical radio system, Joint targeting workstation, Kearfott low-cost altitude heading reference system, Kelvin, Key fill device, Key transfer device, Keyboard cursor control unit, KeyBoard unit, Kilobit, Kilobyte, Kilogram, Kilohertz, Kollsman auto-schedule pressurisation System, Lance-cartouches modulaire, Landing control logic unit, Landing gear computer and interface unit, Landing roll-out control unit, Large scale integration, Laser augmented airborne TOW, Laser detector and tracker/strike camera, Laser eye protection, Laser illuminated viewing and ranging, Laser imaging and ranging, Laser inertial navigation system, Laser obstacle cable unmasking system, Laser ranger and marked target seeker, Laser spot tracker, Laser target designator/ranger, Laser warning analyser, Laser warning receiver, Launcher decoder unit, Le Centre Thomson d'Applications Radar, Lead computing optical sight (system), Leadless ceramic chip-carrier, Leurre electromagnetique actif, Leurre infrarouge à signature et cinématique adaptée, Light airborne multipurpose system, Light detection and ranging, Light electronic control system, Light helicopter, Light-emitting diode, Light-emitting diode-recording head assembly, Lightweight electronic support measures, Lightweight fighter, Limited installation programme, Line of attack, Line of sight, Line of sight indicator, Linear predictive coding, Linear variable differential transformer, Line-replaceable module, Line-replaceable unit, Link 16 interoperable tactical data link, Link quality analysis, Liquid crystal display, LITEF analytical air data system for helicopters, LITEF helicopter navigation, LITEF helicopter reference, Local area augmentation system, Local area differential global navigation satellite system, Local area differential global positioning system, Local area network, Local oscillator, Logic circuit usable as either AND/OR, Long wave infra-red, Long-range aid to navigation, Long-range oblique photography, Loop transfer recovery, Low cycle fatigue, Low frequency, Low frequency omnidirectional acoustic frequency Analysis and recording, Low pressure, Low probability of detection, Low probability of interception, Low resolution, Low-altitude autopilot, Low-altitude electro-optical, Low-altitude navigation and targeting infra-red for night, Low-altitude navigation equipment, Low-altitude night attack, Low-altitude safety and target enhancement, Low-altitude surveillance system, Low-cost inertial navigation system, Low-cost weapon delivery system, Lower sideband, Low-intensity conflict aircraft system, Low-light level television, Low-light television, Low-noise amplifier, Low-pressure compressor bleed actuator, Low-profile head-up display, Magnetic anomaly detector, Magnetic heading to runway, Magnetic tape loader, Magnetic tape unit, Main communications control panel, Maintenance monitoring panel, Map display generator, Marine remote area approach landing system, Maritime patrol aircraft, Maritime reconnaissance, Maritime surveillance system, Mast-mounted sight, Maximum operating mach number, Maximum permitted operating speed, Mean Time between failures, Mean Time between repairs, Mean Time between unscheduled repairs, Mean time to repair, Measure(s) of performance, Measurements and signatures intelligence, Medium-range air-to-air missile, Mega data transfer cartridge with processor, Megabit, Megabyte, Megahertz, Memory loader and verifier, Mercury cadmium telluride, Message interchange distributed application, Metal nitride oxide silicon, Metal oxide silicon, Metal oxide silicon field effect transistor, Metre, metres per second, Micro-aircraft integrated data system, Microchannel plate, Microflex attitude and heading reference unit, Micromachined accelerometer gyro, Microwave aircraft digital guidance equipment, Microwave ice accretion measurement instrument, Microwave landing system, Microwave radiometer, Middle infra-red (band), Mid-life improvement, Mid-wave infra-red, Military aircraft satcoms terminal, Military flight management system, Military microwave landing system avionics, Military operations in urban terrain, Military specification, Military standard, Military strategic and tactical relay, Military VME processor, Millibar, millimetre(s), Millimetric target acquisition system, Millimetric wave (radar), Million complex operations per second, Million instructions per second, Million operations per second, milliradian, millisecond, Millivolt, Milliwatt, Miniature airborne GPS receiver, Miniature analogue recording electronics, Miniature GPS receiver, Miniature infra-red linescan system, Miniature integrated GPS/INS tactical system, Miniature standard central air data computer, Miniature synthetic aperture radar, Minimum aviation system performance standards, Minimum emergency safe altitude, Minimum en route altitude, Minimum essential emergency communications network, Minimum navigation performance standards, Minimum operating altitude, Minimum operating performance standard, Minimum resolvable temperature difference, Minimum safe altitude, Minute(s), Missed approach point, Missile approach warning system, Mission computer, Mission data (ground) terminal, Mission data file, Mission data loader, Mission data terminal, Mission data transfer system, Mission management computer, Mission manager, Mission planner, Mission planning subsystem, Mission support facility, Mission system processor, Mobile aerostat tracking and surveillance system, Mobile mass storage system model R, Mobile quick-look facility, Modified automatic dependent surveillance, Modular airborne processor, Modular architecture for real-time applications, Modular aviation radar, Modular avionics enhancement system targeted for retrofit operations, Modular control equipment, Modular data acquisition system, Modular ejection-rated low-profile imaging for night, Modular electronics concept, Modular infra-red transmitting system, Modular integrated communications and navigation system, Modular low-power radio frequency, Modular navigation system, Modular self-protection system, Modular thermal imaging sight, Modulated continuous wave, Modulated infra-red jammer, Modulation Transfer Function, Molecular beam epitaxy, Monocular head-up display, Monolithic microwave integrated circuit, Monolithic ring laser gyro, Moving and stationary target acquisition and recognition, Moving target indicator, Multi sensor stabilised payload, Multi-application control computer, Multibeam array transmitter, Multifunction colour display, Multifunction control and display unit, Multifunction display, Multifunction display (system), Multifunction display indicator, Multifunction head-down display, Multifunction head-down display, Multifunction information distribution system, Multimission management system, Multimission optronic stabilised payload, Multimission radar system, Multimission UHF Satcom transceiver, Multimode receiver, Multiple application control system, Multiple emitter targeting receiver, Multiple remote terminal unit, Multiplexer, Multipurpose colour display, Multipurpose display, Multipurpose display repeater indicator, Multipurpose escort/anti-armour variant of Tiger helicopter, Multipurpose head-down, Multipurpose modem, Multipurpose processor unit, Multirole thermal imager, Multisensor inertial measurement unit, Multisensor stabilised integrated system, Multisensor warning system, Multispectral imagery, Nanoseconds, Nap of the earth, Narrow field of view, National Aeronautics and Space Administration (US), National air traffic, National emergency airborne command post, National imagery interpretability rating scale (US), National Security Agency (US), National Severe Storms Laboratory (US), NATO identification system, NATO improved link 11, Nautical mile(s), Nautical miles per hour (knot), Naval tactical data system, Navigation and attack system for helicopters, navigation and communication, Navigation and weapon aiming subsystem, Navigation and weapon delivery system, Navigation attack system, Navigation computer unit, Navigation display, Navigation interface unit, Navigation management system, Navigation management unit, Navigation processor unit, Navigation quality inertial sensor, Navigation switching interface unit, Navigation, heading and attitude reference system, Navigation/identification deception jammer, Near infra-red (band), Near real-time, Negative metal oxide semiconductor, Neodymium/yttrium aluminium garnet, Network centric warfare, Network control station, Never to be exceeded speed, Next generation helmet, Nickel/cadmium, Night imaging through electro-optics, Night surveillance payload, Night targeting system, Night vision goggles, Night vision goggles/head-up display, Night vision imaging system, Night vision/head-up display, No power recovery, No tail rotor, Noise equivalent power, Noise equivalent temperature difference, Non-directional beacon, Non-volatile memory, Non-volatile random access memory, Normalised detectivity, North Atlantic Treaty Organisation, North continental US, Notice of proposed rule making, Nuclear, biological and chemical, Obstacle avoidance system, Obstacle warning ladar, Obstacle warning system, Offensive avionics system, Offensive radar system, Officer in tactical command information exchange subsystem, Offset quadrature phase shift keyed, Omega/VLF sensor unit, Omni-bearing indicator, Omnidirectional air data system, Onboard electronic warfare simulator, Onboard information system, Onboard maintenance terminal, Onboard targeting experiments, On-top position indicator, Operational data interface, Operational flight programme, Operational support aircraft, Optical control unit, Optical display unit, Optical head unit, Optical quick access recorder, Optical sensor converter, Optical warning, location and detection, Optronic tracking and identification system, Optronique secteur frontal, Original equipment manufacturer, Out/off/on/in, Outside air temperature, Over the air re-keying, Over the horizon (Target), Oxygen mask-mounted sight, Pack temperature controller, Panoramic night vision goggle, Parallel processing, Paravisual director, Pass no enhanced navigation with terrain referenced avionics, Passive airborne modular infra-red, Passive airborne warning system, Passive identification and targeting system, Passive infra-red airborne track equipment, Passive missile approach warning system, Peak effective radiated power, Peak envelope power, Performance advisory system, Performance monitor module, Performance reference unit, Performance seeking control, Personal locator beacon, Personnel location system, Phase alternation line, Phase shift keyed, Phase-locked loop, Photographic sensor control system, photovoltaic, Pilot access terminal, Pilot aid and close-in surveillance, Pilot night vision sensor, Pilot's control unit, Pilot's display unit, Pilot's infra-red sighting ability, Pilot's vision system, Pilot-vehicle interface, Plan position indicator, Pod integrated localisation, observation, transmission, Portable data store, Portable data store, Portable flight inspection system, Position, bearing and distance indicator, Positive-intrinsic-negative (semiconductor), Pounds per square inch, Power analyser and recorder, Precision, Precision area navigation, Precision attitude control augmentation/improved air-to-ground sight system, Precision lightweight GPS receiver, Precision location and identification, Precision location reporting system, Precision location strike system, Precision up-shot laser steerable equipment, Preplanned product improvement, Press to transmit, Pressure and temperature measurement unit, Pressure transducer module, Primary flight control (or computer) system, Primary flight display, Primary flight display/navigation display, Primed oscillator expendable transponder, Printed circuit board, Probability of correct message receipt, Process (or programme) instruction, Processeur militaire Français, Processing element, Processor interface controller and communication, Program executive officer, Programmable digital radio, Programmable read-only memory, Programmable signal processor, Programmable touch panel, Programme development card, Programme development card/ performance monitor module, Programme load unit, Projected bomb impact line, Projected map assembly, Pulse amplitude modulation, Pulse coded scanning beam, Pulse Doppler elevation scan, Pulse Doppler non-elevation scan, Pulse per second, Pulse recognition interval de-interleaving, Pulse recurrence frequency, Pulse repetition interval, Pylon integrated dispenser station, Quadrant receiver, Quadrantal error correction, Quadrature phase shift keyed, Quantum well infra-red photodetector, Quick access recorder, Radar cross-section, Radar Doppler à impulsions, Radar Doppler multifunction, Radar homing and warning receiver, Radar navigation system, Radar system improvement programme, Radar warning receiver, Radial velocity, Radio frequency, Radio frequency interference, Radio frequency unit, Radio Technical Commission For Aeronautics (US), Radio Technical Commission For Astronautics' Free Flight Select Committee (US), Radio telemetry theodolite, Radio tuning unit, Rain echo attenuation compensation technology, Random access memory, Range Doppler profile, Range only, Range-finder target designator laser, Range-while-search, Rapid alert programmed power management of radar targets, Read-only memory, Read-out circuit, Real-time display, Real-time information into cockpit, Receiver autonomous integrity monitoring, Receiver processor group, Receiver processor unit, Receiver/transmitter, Receiver-transmitter-antenna, Reconnaissance data annotation set, Reconnaissance interface system, Recorder/film processor unit, Recording head assembly, Recovery guidance system, Red, green, blue, Reduced instruction set computer, Reduced vertical separation minima, Redundant array of independent disks, Relative velocity of flow on the underside of an aerofoil, Remote data concentrator, Remote Display unit, Remote electronics unit, Remote map generator, Remote map reader, Remote readout unit, Remote switching control, Remotely piloted vehicle, Removable auxiliary memory unit, Removable transport media module, Replacement inertial measurement system, Replacement maritime patrol aircraft, Request for proposals, Required navigation performance/ actual navigation performance, Resistance capacitance, Resolution advisory/traffic advisory, Resolution advisory/vertical speed indicator, Responsive electronic warfare training system, revolutions per minute, Ring laser gyro, Rome Air Development Centre (US), Rotating variable differential transformer, Rotocraft pilot's associate, Royal Aerospace Establishment (UK), Royal Air Force (UK), Royal Australian Navy role adaptable weapons system, Royal fleet auxiliary, Ruggedised optical data system, Satellite communications, Satellite data communications system, Satellite data system, Satellite terminal Unit, Search and rescue satellite aided tracking, Second generation of anti-jam tactical UHF radios for NATO, second(s), Secondary attitude and air data reference unit, Secondary surveillance radar, Secondary surveillance radar (SSR) improvements and collision avoidance systems, Secret Internet protocol router network, Selective availability/anti-spoofing, Selective calling, Selective identification facility, Self-contained navigation system, Self-protection electronic warfare system, Self-repairing flight control system, Semi-automatic flight inspection system, Sensor control-data display set, Sensor surveying unit, Sensor technology for affordable infra-red systems, Serial communication interface, Serial processing, Severe environment tape platform, Short pulse insertion, Short-term conflict alert, Side-looking airborne modulated multimission radar, Side-looking airborne radar, Side-looking infra-red, Sidewinder control system, Sight electronics unit, Signal acquisition conditioning terminal, Signal command decoder, Signal data processor, Signal emulation of aero-navigation and landing, Signal generator unit, Signal identification mobile system, Signal processing in the element, Signal processing tools, Signal/noise ratio stress against number of alternating load cycles to failure, Signals intelligence, Silent attack warning system, Silicon intensified target, Simultaneous operation (of collocated RF sets), Single board computer, Single card, Single card processing, Single sideband, Single-channel ground/air radio system, Single-channel transponder, Sistemi de control de armamento, Situation report, Slat flap control computer, Small aerostat surveillance system, small platform electronic warfare (system), Smart flat-panel display, Smart head-up display, Smoke detection control unit, Software/hardware implemented partitioning, Solid-state angular rate transducer, Solid-state cockpit voice recorder, Solid-state combined voice and flight data recorder, Solid-State flight data recorder, Solid-state ice detector, Solid-state quick access recorder, Sonar transmitter/receiver, South continental US, Soviet union airborne warning and control system, Space synchro, Special avionics mission strap-on (pod), Special category 1, Special operations force, Special operations low level, Special-to-type test equipment, Speed command of attitude and thrust, Sperry turbine engine vibration indicator, Spherical error probability, Spin prevention and incidence limiting system, Spoiler and elevator computer, Spoilers electronic control unit, Stabilised electro-optical system, Stabilised long-range observation system, Stabilised steerable thermal imager, Stabilised thermal imaging system, Stability augmentation and attitude hold system, Stalling speed, Standard and recommended practices, Standard attitude and heading reference system (Kearfott), Standard automatic flight control system, Standard central air data computer, Standard electronic memory cartridge, Standard electronic module, Standard flight data recorder, Standard NATO agreement, Standard positioning service (GPS), Standard precision navigator/gimballed electrostatic aircraft navigation system, Standardised advanced infra-red sensor, Standby master warning panel, Standoff jamming, Standoff land attack missile, Standoff target acquisition system, Static random access memory, Station-keeping equipment, Status test panel, Stick sensor and interface control assembly, Stores management processor, Stores management system, Stores management system, Straight through repeater antenna performance, Strain range pair counter, Strapdown inertial reference system, Strapdown magnetic detector unit, Strategic air command (US), Structural usage monitor, Successor identification friend or foe, Suite of integrated RF countermeasures, Super high frequency, Superhet IFM subsystem, Superheterodyne receiver, Support and test station, Suppression of enemy air defences, Surface acoustic wave, Surface mount technology, Surface movement advisor, Surveillance and control datalink, Surveillance radar computer, Switchable main electronic unit, Synthetic aperture fully focused imaging radar equipment, System for protection of helicopters by radar and infra-red countermeasures, System program office (US), System status, Système acoustique d'Atlantique nouvelle génération, Système d'alerte missile infra-rouge, Système pour l'élévation de l'endommagement structural, Systems engineering avionics facility, Systems management unit, Systems research laboratories, Systems weapons improvement programme, Tactical air navigation, Tactical air navigation system, Tactical air operations module, Tactical aircraft reconnaissance pod system, Tactical battlefield management subsystem, Tactical co-ordinator, Tactical data information exchange subsystem, Tactical data information exchange system broadcast, Tactical data management system, Tactical data system, Tactical digital information link, Tactical electronic reconnaissance, Tactical electronic warfare system, Tactical electro-optical reconnaissance system, Tactical information broadcast service, Tactical instrument landing system, Tactical jamming system, Tactical navigation modification, Tactical optical disk system, Tactical reconnaissance intelligence exchange service, Tactical related applications, Tactical situation display, Tactical weapons management system, Tactics planner, Take charge and move out, Take command control panel, Take-off performance monitoring system, Tanker transport training system, Tape transport cartridge, Target acquisition and designator set/ pilot night vision sensor, Target acquisition designation sight, Target identification system electro-optical, Target locating radar, Target sighting system, Targeting air data system/pilot's night vision system, Technical architecture for information management, Technical improvement programme, Technical service order (US), Telebrief control panel, Television, Television camera set, Terrain awareness and warning system, Terrain contour matching, Terrain profile matching, Terrain reference navigation, Terrain-following, Terrain-following radar, Terrain-following, terrain-avoidance, threat-avoidance, Terrestrial flight telecommunication system, Test display unit, The commanders' tactical terminal/ hybrid-receive only, The universal datalink, Thermal cue, Thermal imaging and laser designator, Thermal imaging common module(s), Thermal imaging navigation set, Thin film electroluminescent, Thin film platinum-resistant thermometer, Thin film transistor, Thousand instructions per second, Thousand operations per second, Threat adaptive countermeasures dispensing system, Threat emitter simulator system, Three-axis inertial measurement system, Thrust specific fuel consumption, Time delay integration, Time division multiple access, Time insertion unit, Time reference angle of arrival measurement system, Time reference scanning beam, Time to first fix, Time to station, Tornado infra-red reconnaissance system, Tornado nose radar, Tornado self-protection jammer, Total air temperature, Total in-flight simulator, Total radiation aperture control-antenna, Total terrain avionics, Track-while-scan, Traffic advisory, Traffic alert and collision avoidance system, Traffic information service, Transferred electron device, Transistor/transistor logic, Transmission security, Transmitter processing unit, Transmitter/receiver, Transmitter/receiver unit, Transverse magnetic, Travelling wave tube, Trigger-on-failure, Triplex transducer unit, Tri-service standoff attack missile, True airspeed, Tube-launched optically tracked wire-guided (missile), Tuned radio frequency, Turbine engine monitoring system, Turbine engine vibration indicator, Typical approach speed, UHF satellite tracking (or terminal) system, Ultra high frequency, Ultra reliable radar, Ultraviolet, United Kingdom infra-red countermeasures, United Kingdom Ministry of Defence, United States Air Force, United States Navy, Universal avionics computer, Universal flight data recorder, Universal locator airborne integrated data system, Universal transverse mercator, Unmanned aerial vehicle, Up-front control display, Up-front control panel, Up-front display, Upper sideband, Utilities control system, Variable stability in-flight simulator test aircraft, Variable stator vane actuator, Vehicle and engine management display, Vehicle management system, Velocity/height (ratio), Verification software, Versatile drone autopilot, Vertical and short take-off and landing, Vertical gyro, Vertical line-array DIFAR, Vertical navigation, Vertical reference unit, Vertical speed indicator, Vertical take-off and landing, Vertical/short take-off and landing research aircraft, Very high frequency, Very high-speed integrated circuit, Very large scale integration, Very light laser range-finder, Very low clearance, Very low frequency, Very/ultra high frequency, VHF (very high frequency) datalink, VHF omnidirectional range, VHF omnidirectional range/locator, VHF omnidirectional range/tacan, VHSIC avionics modular processor, Vibration indicator engine warning system, Video augmented tracking system, Video camera system, Video cassette recorder, Video image tracking system, Video symbology display, Videotape recorder, Vinten integrated infra-red linescan, Virtual image display, Virtual retinal display, Visual acuity, Visual display module, Visual display unit, Visual flight rules, Visual graphics generator, Visual target acquisition system, Visually coupled system, Voice alarm warning system, Voice And data recorder, Voice encoder/decoder, Voice keying or activation, Voice processor unit, Voice processor unit (with data mode), Voice terrain advisory, Voice-operated gain adjustment device, Voice-operated switch, Volatile bulk memory, Volt, Voltage standing-wave ratio, Voltage-tuneable magnetron, Volumetric top off, Warning and caution computer system, Watt, Weapon aiming computer, Weapon control panel, Weapon data input panel, Weapon delivery and navigation system, Weapon delivery computer, Weapon interface unit, Weapon processing unit, Weapon-replaceable assembly, Weapons and navigation computer, Weapons computer, Weapons control and management system, Weapons system improvement programme, Weasel attack signal processor, Weather display adapter, Weight and balance computer, Weight and balance system, Wide area augmentation system, Wide area network, Wide field of view, Windshear alert and guidance system, Windshear warning, Windshear warning/recovery guidance system, Windshield temperature controller, Wireless communication and control system, Yttrium indium garnet, Zone temperature controller

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