Aviation Dictionary

FREEZE HORIZON

The time or point at which an aircraft’s STA becomes fixed and no longer fluctuates with each radar update. This setting ensures a constant time for each aircraft, necessary for the metering controller to plan his/her d...

Dictionary Term

FREEZE HORIZON

Definition

The time or point at which an aircraft’s STA becomes fixed and no longer fluctuates with each radar update. This setting ensures a constant time for each aircraft, necessary for the metering controller to plan his/her delay technique. This setting can be either in distance from the meter fix or a prescribed flying time to the meter fix.

References

Pilot Controller Glossary, Federal Aviation Administration, 2023