Plain English Meaning

Flying across an ocean, where the aircraft is too far from land for normal radar and ground-based navigation to work. Special rules, equipment, and procedures apply.

Full Definition

Flight operations conducted across an ocean, typically requiring long-range navigation, communication, and procedural standards because the aircraft is operating beyond the coverage of land-based radar and conventional ground navigation aids. These operations are governed by international agreements and require specific equipment approvals, route clearances, and adherence to organized track or oceanic procedures.