oper - over
- operate an aircraft
- operate an airline
- operate at idle power
- operate from the aerodrome
- operate in compression
- operate in tension
- operate on airline
- operate on fuel
- operate safety
- operate under the conditions
- operated an airline
- operated at idle power
- operated from the aerodrome
- operated in compression
- operated in tension
- operated on airline
- operated on fuel
- operating
- operating aerodrome
- operating agency
- operating an airline
- operating at idle power
- operating ceiling
- operating channel
- operating configuration
- operating control
- operating correction factor
- operating crew
- operating cruise
- operating data
- operating engine
- operating envelope
- operating environment
- operating expenses
- operating facilities
- operating from the aerodrome
- operating in compression
- operating in tension
- operating income
- operating instruction
