Definition
A calculated time, generated by ATC automation, at which an arriving aircraft is scheduled to cross a designated outer fix on its way to the destination airport. It is used by controllers to sequence and meter arrivals into busy terminal airspace.
Plain English
The time the system has worked out for your aircraft to cross a specific point on the way into a busy airport, so that controllers can space arriving traffic in an orderly stream.
Context Anchor
Seen in air traffic control and arrival-planning contexts, especially when aircraft are being sequenced toward an airport.
Derivation
The name describes its function plainly: 'Outer' meaning a fix located well out from the destination, 'Fix' meaning a defined geographic point used in navigation, and 'Time' meaning the scheduled crossing time. The fix sits on the outer edge of the arrival flow so controllers have room to adjust spacing before the aircraft gets close to the airport.
Why Pilots Care
Helps maintain proper spacing between aircraft and keeps the flow of arrivals predictable and safe.
Intuition Check
“Fix” does not mean a repair here; it means a known navigation point. “Outer” does not mean outside all airspace; it means farther out from the airport or approach area.
Example Sentence 1
The arrival controller issued a small speed reduction to ensure the aircraft met its assigned OFT.
Example Sentence 2
We reduced speed slightly to meet the OFT and avoid holding.