Which navigation concept includes onboard performance monitoring and alerting?

Which navigation concept includes onboard performance monitoring and alerting?

• A. RNP
• B. RNAV
• C. GPS
• D. VOR

Answer: (A)

Onboard performance monitoring and alerting is a defining feature of RNP. In RNP, the aircraft’s navigation system continuously checks whether its actual performance (accuracy and integrity) stays within the specified navigation performance value. If performance degrades beyond the allowed limits, the system raises an alert to the crew, prompting corrective action. This built-in monitoring and alerting is what makes RNP a performance-based navigation concept, enabling precise tracking and safer operations in complex airspace and approaches. RNAV describes navigation to waypoints without external references, GPS is a satellite-based position system, and VOR is a ground-based beacon; none of these inherently require the onboard performance monitoring and alerting that RNP enforces.

Onboard performance monitoring and alerting is a defining feature of RNP. In RNP, the aircraft’s navigation system continuously checks whether its actual performance (accuracy and integrity) stays within the specified navigation performance value. If performance degrades beyond the allowed limits, the system raises an alert to the crew, prompting corrective action. This built-in monitoring and alerting is what makes RNP a performance-based navigation concept, enabling precise tracking and safer operations in complex airspace and approaches. RNAV describes navigation to waypoints without external references, GPS is a satellite-based position system, and VOR is a ground-based beacon; none of these inherently require the onboard performance monitoring and alerting that RNP enforces.