| G |
Golf
Gain
Green
Gust |
| G/A or GA |
Go Around |
| G/S |
Glide Slope
Ground Speed |
| GA or G/A |
Go Around |
| GAL |
Gallon
Galley |
| GB |
Great Britain
Generator Breaker |
| GBX |
Gearbox |
| GCA |
Ground Controlled Approach |
| GCB |
Generator Circuit or Control Breakers |
| GCO |
Ground Operations Coordinator |
| GCR |
Generator Control Relay |
| GCU |
Generator Control Unit |
| GE |
General Electric |
| GEM |
Ground Based Engine Monitoring |
| GEN |
Generator |
| GFRP |
Glass Fiber Reinforced Plastic |
| GIC |
General Instruction Cards |
| GLA |
Generator Load Apu |
| GLC |
Generator Line Contactor |
| GLE |
Generator Load Engine |
| GLR |
Generator Line Relay |
| GLS |
Glide Slope
GPS Landing System
GNSS Landing System |
| GM |
(IOSA) Guidance Material
General Manager |
| GMF |
General Manager Flying |
| GML |
General Mail |
| GMM |
General Maintenance Manual |
| GMO |
General Manager Operations |
| GMT |
Greenwich Mean Time |
| GND |
Ground |
| GNSS |
Global Navigation Satellite System |
| GOC |
Ground Operations Coordinator |
| GOM |
General Operations Manual |
| GPCU |
Ground Power Control Unit |
| GPM |
General Procedures Manual |
| GPS |
Global Positioning System (Navstar) |
| GPU |
Ground Power Unit |
| GPWC |
Ground Proximity Warning Computer |
| GPWS |
Ground Proximity Warning System |
| GR |
Hail |
| GRD or GRND |
Ground |
| GRH |
Aircraft Ground Handling (IOSA) |
| GRP |
Geographic Reference Point |
| GRU |
Ground Refrigeration Unit |
| GRVTY |
Gravity |
| GS |
Glide Slope
Ground Speed
Small hail or Snow Pellets |
| GSE |
Ground Support Equipment |
| GSO |
Ground Safety Officer |
| GSR |
Ground Safety Report |
| GTCP |
Gas Turbine Engine Compressor Power |
| GW |
Gross Weight |
