RNP 4 in Oceanic and Remote Continental Area

1
RNP 4 in Oceanic and Remote Continental Area

• H. LESPINASSE - DGAC/DCS
• Koln, CNS/ATM Steering Group
• 10-11 October 2006

2
Overview

• Environmental context
• Oceanic and remote regions
• Trials and implementations
• Existing guideline material
• Operational requirements
• Navigation Specification
• Surveillance/Communication considerations
• Air France RNP 4 request
• Conclusion

3
Oceanic and remote regions

• Ground based navigation aids do not exist except
  possibly at isolated locations
• Oceanic and remote regions of the world are
  restructured to provide capacity and operating
  benefits.
• Reduced route spacing RNP 4 supports the
  application of 30Nm lateral 30Nm longitudinal
  distanced-based separation minima (similar to RNP
  10 with 50Nm50Nm).

4
Trials and implementations

• Auckland Oceanic, Brisbane, Honiara, Melbourne,
  Naha, New Zealand, Port Moresby, Tokyo FIRs
  Routes or Oceanic control areas 30Nm lateral and
  longitudinal separation are provisioned in doc
  7030/4 Mid/Asia/RAC-10 7.1.6.
• RNP 4 applications in Tasman sea as described in
  doc 7030/4
• Operational Trial of 30-NM Lateral and
  Longitudinal Separation Standards in the Oakland
  Air Route Traffic Control Centre (ARTCC) oceanic
  sector 3 (OC3), which spans the airspace roughly
  between California and Australia/New
  Zealand/Fiji/Tahiti began 22 December 2005.
• South China Sea Airspace (due to traffic growth
  on one pair of parallel routes causing delays)

5
Existing guideline material

• ICAO state letter ref. N 13/33.7-04/86 "Guidance
  for a Required Navigation Performance (RNP-4)
  Operational Approval Process for Initial
  Application in Oceanic or Remote Airspace
  planned to cover introduction of RNP4 in Pacific
  pending official release appendix F of Manual on
  RNP doc 9613.
• Draft Performance Based Navigation manual
  developed by RNPSORSG ICAO group as an evolution
  and replacement of doc 9613.
• FAA order 8400.33 dated 9/15/05

6
Operational requirements

• Annex 6
• State Letter ref. N 13/33.7-04/86
• ICAO Supplementary Regional Procedures doc 7030
  Mid/Asia/Rac-10
• JAR-OPS 1.243 Operations in areas with
  specified navigation performance requirements

7
Navigation specification

• Draft PBN manual concept of navigation
  specification
• Aircraft eligibility groups (airworthiness)
• Navigation equipment 2 fully serviceable
  independent LRNS. GNSS must be used either as
  stand alone or sensor to a multi-sensors system
• Navigation accuracy cross track TSE lt 4Nm and
  along track NSE lt 4Nm for 95 flight time
• Onboard monitoring performances Horizontal
  Alert Limit 4Nm (TBC)
• RAIM and FDE functions required except in case of
  Aircraft Autonomous Integrity Monitoring (AAIM)
  with the use of inertial navigation systems.

8
Navigation specification

• Draft PBN manual concept of navigation
  specification
• Maximum FDE outage time 25 minutes - only
  applicable to stand alone GNSS and multi-sensor
  integrating GNSS w/o INS sensors inputs.
• Required functionalities
• Display of navigation, TF, DF, Direct to, CF, ...
• WGS84 geodetic reference system
• Recommended functionalities

9
Navigation specification

• Operational requirements
• Flight plan designation
• Pre-Flight procedures
• Operating procedures
• Navigation Database
• Pilot knowledge and training

10
Surveillance and Communication performances
consideration

• Additional communication and surveillance
  equipage may be required to satisfy ATM
  operational performance. (doc 4444, ICAO annex
  11,regional supplementary procedures 7030/4)
• In non radar environment where 30 Nm separation
  is applied direct voice CPC or CPDLC and ADS-C
  (with lateral deviation event report at 5Nm) is
  defined (attachment B annex 11) with a maximal
  report rate of 14 minutes (see doc 4444)
• e.g. Tasman Sea, Pacific - Communication mean
  Direct Voice CPC required or CPDLC ATS -
  Surveillance mean ADS-C with a reporting rate
  of 14 minutes

11
Air France RNP 4

• Air France request from DGAC RNP 4 operational
  approval

12
Conclusion

• Need to develop guideline material to support
  operational approval by European states.
• Draft position paper based on existing
  guidelines, in particular ICAO PBN manual.