Aeronautical Terms beginning with G

G/S

Glide Slope

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GA

General Aviation

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GAMA

General Aviation Manufacturers Association

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GBAS

Ground-Based Augmentation System

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GBT

Ground-Based Transmitter

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GCA

Ground Controlled Approach

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GCO

Ground Communication Outlet

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GDP

Ground Delay Programs

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GDPE

Ground Delay Program Enhancements

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GLS

Global Navigation Satellite System Landing System

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GNE

Gross Navigation Error

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GNSS

Global Navigation Satellite System

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GPS

Global Positioning System

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GPWS

Ground Proximity Warning System

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GS

Groundspeed

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GWS

Graphical Weather Service

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