| JEPPESEN JETPLAN |
| GCT |  GRID COURSE LANDING
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| GH | GRID HEADING
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| GRID | GRID COURSE ( WITHOUT MAG VARIATION )
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| GRS | GROUND SPEED
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| NAT CONCEPT |
| GNE | Gross Navigation Error
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| GNSS | Global Navigation Satellite System
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| HONEYWELL |
| G/S | Glide Slope
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| GA | general aviation: aviation operations other than military and airlines (e.g., corporate, agricultural, personal, flying clubs/schools)
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| GATM | Global Air Traffic Management (military version of CNS-ATM concept)
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| GATT | General Agreement on Trade and Tariffs
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| GBST | Ground-Based Software Tool
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| GCP | Glareshield Control Panel
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| GDAP | Growing Danger of Acronym Proliferation
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| GES | Ground Earth Station (SATCOM term)
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| GIE | Groupment d´Intéret Economique: French corporate entity, grouping of mutual economic interests (e.g. Airbus)
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| GLONASS | Global Orbiting Navigation Satellite System: CIS satellite navigation system version of GPS
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| GLS | GPS Landing System
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| GLU | GPS Landing Unit: provides precision of GPS guidance to the runway in Cat III operations
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| GMT | Greenwich Mean Time: used in navigation systems- Zulu
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| GNS | Global Navigation System (like GPS, but broader -- now the preferred term by Honeywell)
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| GNSS | Global Navigation Satellite System
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| GNSSU | Global Navigation Satellite Sensor Unit (the GNS receiver component of a GNS)*
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| GO/NG | Go/No Go
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| GPIRS | Global Positioning/Inertial Reference System
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| GPS | Global Positioning System (see GNS)
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| GPSSU | Global Positioning System Sensor Unit
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| GPWS | Ground Proximity Warning System
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| HONEYWELL |
| GDP | Ground Delay Programs
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| Ghz | Gigahertz
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| GLONASS | Global Orbiting Navigation Satellite System
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| GNSS | Global Navigation Satellite System
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| GPS | Global Positioning System
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| AVIONICS GLOSSARY |
| GA | Go around
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| GCLP | Guidance control law parameter
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| Glideslope | Angle approach a runway, Symbols: Gamma, Typical Units: rad, deg,
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| Global Positioning System (GPS) | A navigation sensor based on satellites, A Global Positioning System (GPS) provides highly accurate navigation data: position, velocity, and time reference. GPS is often aided by the INU, AHRS, and Doppler data. GPS is accurate with four or more properly oriented satellites. Accuracy is degraded with improperly placed satellites or fewer than four satellites visible. GPS-INS is the most accurate of modes listed, with day/night and all weather capability.
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| GPS | Global Positioning System
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| GPS-DNS | GPS using DNS
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| GPS-INS | GPS using INS
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| Gravity | Force exerted by gravity, gravity sometimes includes effects of the earth´s rotation, gravity is often treated as a constant, but for greater accuracy gravity is a function of latitude, altitude, and the phase of the moon (yes, it´s true), Symbols: g, Typical Units: lbf,kip, Dimensions: Mass * Length / Time-squared,
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| Grid north | Standard aviation term.
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| Grivation | Symbols: nu sub g , Typical Units: rad, deg,
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| Groundspeed | The speed over the ground, earthspeed projected to a horizontal plane, Symbols: V sub g, Typical Units: kt,ft/s, Dimensions: Length / Time,
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| GTA | Ground track angle
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| Guidance | System, usually software, that determines state errors of desired state minus current state, typically three states: heading, altitude, and speed,
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| Gyroscope (gyro) | An inertial device for measuring change of attitude (pitch rate, roll rate, and yaw rate), gyroscopes usually consist of a gimbled, rotating mass, gyroscopes are usually included in inertial sensors, such as AHRS and INS, See Also: ring-laser gyro,
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| GLOSSARTIST AVIATION GLOSSARY |
| GA. | Go around
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| GCLP. | Guidance control law parameter
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| Glideslope. | Angle approach a runway Symbols: Gamma Typical Units: rad, deg
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| GPS. | Global Positioning System
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aero glossary
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