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Advanced RNP
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Rotorua
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Auckland
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What is RNP? • RNP = RNAV + Performance Monitoring /
Alerting
• Enhanced monitoring -> Enhanced pilot awareness ->
Reduced obstacle clearance
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What is Advanced RNP? • RNP = RNAV + Performance Monitoring /
Alerting
• Enhanced monitoring -> Enhanced pilot awareness ->
Reduced obstacle clearance
• Can apply to all flight phases.
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What is Advanced RNP? • RNP = RNAV + Performance Monitoring /
Alerting
• Enhanced monitoring -> Enhanced pilot awareness ->
Reduced obstacle clearance
• Can apply to all flight phases.
• Similar to RNP AR. Lower Nav spec, but…
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What is Advanced RNP? • RNP = RNAV + Performance Monitoring /
Alerting
• Enhanced monitoring -> Enhanced pilot awareness ->
Reduced obstacle clearance
• Can apply to all flight phases.
• Similar to RNP AR. Lower Nav spec, but…
• Less stringent requirements for crew training, operational
procedures and onboard equipment
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Potential Benefits to Operators
• Greater flexibility for Procedure designers to handle terrain
constraints.
• Ability to optimise airspace usage.
• Shortened track miles.
• Vertical Guidance - > Lower minima and statistically
safer.
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What about the regions?
• Emerging navigational capability for turboprop airliners.
• This will result in some regions gaining A-RNP approaches, as
and when the operator demand dictates.
• Operators may have the ability to fly these procedures,
depending on the equipment and software revisions installed.
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An Example - NZPM
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An Example - NZPM
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An Example - NZPM
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An Example – NZPM (Concept only)
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Design Limitations
• No RF turns from FAF to Final Missed Approach
• Minimum RF turn radius of 2 * RNP value
• Maximum Bank Angle in RF turns of 25°
• 45° limit on RF turn angle when connecting to FAF
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Challenges
• Airspace design considerations
• High Nav accuracy -> Less variation in flightpaths ->
Community noise issues
• Managing multi-mode operations (ie traditional RNAV approaches
and A-RNP simultaneously)
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Questions?
