Instrument Rating Exam · Practice

In a PBN navigation specification, 'accuracy' is defined as:

• A.The maximum position error that is permitted under any circumstances during the whole operation
• B.The navigation error budget that applies for 68% of the total elapsed flight time only
• C.The total system error summed together across all of the different segments of the flight
• D.The 95th percentile radius within which the aircraft's estimated position lies relative to its true position