G
- Gate
- Passenger or aircraft departure position at a terminal
- Geon
- The dark grey material at the edge of some windshields, where rivets attach the windshields to window frames.
- GNZ
- Gliding New Zealand Incorporated
- GPS
- Global Positioning System
- Grooved
- Cut across to assist with water runoff and aid braking
- Gross Tonnage
- Measurement of a ship's overall internal volume
- Ground Handling
- Services provided to aircraft while on the ground
- GSMEACQ
- GSMEACQ means Ground, Situation, Mission, Execution, Admin, Command, Questions
- Gudgeon
- A hole or socket in which a pintle rotates.