inst - inte
- instability
- instability line
- install
- installation
- installation diagram
- installation feature
- instant purchase fare
- instantaneous position
- institute
- Institute of Astronomy
- Institute of Astrophysics
- instruction
- instruction clarification
- instruction flying
- instructional aircraft
- instructional check flight
- instructional dual flight
- instructional solo flight
- instructor
- instrument
- instrument altitude
- instrument appreciation
- instrument approach
- instrument approach chart
- instrument approach course
- instrument approach landing
- instrument approach procedure
- instrument approach runway
- instrument board
- instrument certificate
- instrument channel
- instrument clearance
- instrument constant
- instrument dial
- instrument display
- instrument drift
- instrument error
- instrument flight
- instrument flight rules
- instrument flight time
