Leve - live
- level
- Level 1 aircraft
- Level 1 area
- level 1 flying qualities
- Level 2 performance
- level acceleration
- level accelerometer
- level attitude
- level boundary
- level error
- level flight
- level flight drag
- level flight trim
- level limit
- level recording data
- level reversal
- level turn
- level-flight acceleration
- level-flight approximation
- level-flight envelope
- level-flight equation
- level-flight lift
- level-flight relationship
- level-flight segment
- level-flight solution
- leveler
- leveller
- levelling-off maneuver
- Levenberg-Marquardt algorithm
- lever
- levered strut
- levered suspension
- levered-suspension gear
- Lewis-Semenov number
- LEX configuration
- liability
- Liapunov optimal control
- library
- libration
- license assembly
