ladd - lead
- ladder
- lade
- laden aircraft
- lading
- lag
- laissez-passer
- Lambert conformal conic projection
- laminar
- laminar flow
- laminar friction
- laminar layer
- laminarity
- laminations
- lamp
- land
- land aerodrome
- land aircraft
- land area
- land clutter
- land glider
- land gyroplane
- land helicopter
- land station
- land-and-water airport
- land-based
- land-based aircraft
- land-based radar measurement
- lander
- lander planetary spacecraft
- landing
- landing accident
- landing aerodrome
- landing after last light
- landing aid
- landing approach speed
- landing area
- landing area facilityies
- landing beacon
- landing beside fix
- landing burn
