G
- G load
- gale
- galley
- gapless ice guard
- gapped ice guard
- gas-turbine engine
- gas balloon
- gas expansion
- gas generator
- gas hood
- gas main
- gate to gate
- GBAS landing system
- geared turbofan
- general aviation
- geodesic distance
- geodetic datum
- geoid
- geoid undulation
- geometric pitch
- glare shield
- glass cockpit
- glide
- glide angle
- glide path
- glide ratio
- glide slope
- glider
- glider flight time
- gliding distance
- global aviation safety plan
- global navigation satellite system
- global positioning system
- go around
- go show
- golf
- gradient wind
- gradient wind speed
- gravity tank
- gray
- great-circle course
- Greenwich mean time
- grid
- grid map
- grooved runway
- grooving
- gross weight
- gross wing area
- ground-based augmentation system
- ground collision
- ground control
- ground crew
- ground effect
- ground equipment
- ground handling
- ground idle
- ground installation
- ground loop
- ground movement chart
- ground operations
- ground proximity warning system
- ground resonance
- ground speed
- ground support equipment
- ground visibility
- ground wave
- gull wing
- gust
- gyrodyne
- gyroplane
- gyroscope