G
- G load
- galley
- gapless ice guard
- gapped ice guard
- gas balloon
- gas embolism
- gas expansion
- gas turbine engine
- gate to gate
- gear-up landing
- geared turbofan
- general aviation
- geodetic datum
- geoid
- geoid undulation
- geometric pitch
- glass cockpit
- glide
- glide path
- glide path angle
- glide ratio
- glide slope
- glide slope path
- glide speed
- glidepath
- glider
- glideslope
- gliding angle
- gliding distance
- global navigation satellite system
- global positioning system
- go-around
- go around
- gradient
- gradient of climb
- gradient wind
- gradient wind speed
- gravity-related height
- Greenwich mean time
- grooved runway
- grooving
- gross dry weight
- gross weight
- ground-based augmentation system
- ground-based medical support
- ground crew
- ground effect
- ground equipment
- ground fire
- ground handler
- ground handling
- ground idle
- ground looping
- ground proximity warning system
- ground speed
- ground support equipment
- ground track
- ground visibility
- ground wave
- gull wing
- gust
- gyrodyne
- gyroplane
- gyroscope
- gyroscopic precession