Performance Based Navigation: Navigation Specifications

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Performance Based NavigationNavigation
Specifications

• John McGraw
• Manager, Flight Technologies and Procedures
  Division
• Flight Standards Service
• U.S. Federal Aviation Administration

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RNAV and RNP Navigation Specifications

• Navigation Specifications address aircraft and
  operational issues
• Grouped into two volumes
• RNAV Navigation Specifications
• Do not require performance monitoring and
  alerting
• RNP Navigation Specifications

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PBN Scope

• Incorporate existing operations as practical
• RNP-10 classified as RNAV
• RNP-4 adds performance monitoring requirement
• B-RNAV renamed as RNAV-5
• Basic GNSS approaches renamed RNP APCH
• Additional guidance on barometric VNAV
• Harmonize European and US RNAV
• RNAV-1 and RNAV-2
• Terminal arrival/departure for non-radar
• Basic RNP-1
• Advanced instrument approaches
• RNP AR APCH

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Overview by Flight Phase

• PBN Manual includes airworthiness, operational
  and training guidance

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DME/DME RNAVJapan
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P-RNAV Night RNAV routes into Schiphol
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RNP (AR) APCH Palm Springs, California
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Approval Guidelines

• Aircraft Eligibility
• Can be based on Aircraft Flight Manual or
  supplemental information
• Operational Approval
• Operating procedures
• Flight crew training
• Control of navigation database process, where
  required
• Approval obtained in accordance with State
  operating rules

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Aircraft Requirements

• Performance Requirements
• Accuracy, Integrity, Continuity, GNSS
  signal-in-space
• Performance monitoring and alerting
• Only applicable for RNP systems
• Criteria for Specific Navigation Services
• Defines allowable systems and required
  performance
• Functional requirements
• Just as important as performance
• Navigation database requirements

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Criteria for Specific Navigation Services
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Operating Proceduresand Training

• Pre-flight planning
• In-flight procedures
• Performance expectations (deviation from path)
• Pilot has critical role in performance monitoring
• Contingency procedures
• Training
• Lists training tasks considered important, which
  may already be part of operators training
  program
• System-specific information on how navigation
  system functions is vital to success

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Navigation Service Provider Responsibilities

• Navigation infrastructure
• DME geometry with respect to route
• Communication and surveillance
• Radar required or not?
• Obstacle clearance and route spacing Publication
• Controller
• Not meant to impose new requirements
• Status monitoring
• ATS System monitoring

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Conclusion

• Navigation Specification provides implementation
  guidance for PBN operations
• Focus of navigation specification is on aircraft
  and operator
• Other aspects covered in appropriate ICAO
  document (for example, PANS-OPS)
• New Navigation Specifications will be developed
  as appropriate
• For example, Advanced RNP-1

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Thank you