2003 FRP User Conferences1
FAA’s Transition Strategy for Navigation and Landing Services
Dave OlsenNavigation System Engineer
Architecture and Systems Engineering
2003 FRP User Conference
2003 FRP User Conferences2
RadionavigationTask Force
• Volpe Vulnerability Assessment of the Transportation Infrastructure Relying on the Global Positioning System– Published in August 2001– DOT Task Force formed to address mitigation
measures
• FAA tasked to develop Navigation and Landing Transition Strategy - submitted to DOT in August 2002 (faa.gov/asd - Library)
2003 FRP User Conferences3
Transition Strategy Objectives
• Consider current and future navigation services defined in the 2001 FRP
• Consider state of the aviation industry since September 11th
• Create service-based approach to Navaid reductions– Optimize rather than minimize services– Emphasis on operational readiness, dispatch
capability and the servicing of demand
• Continue to recognize differing aircraft equipage (GA and Air Carrier)
2003 FRP User Conferences4
Transition StrategyParticipants
• FAA– NAS Architecture (ASD)– Regulation and Certification (AFS & AIR)– Air Traffic Services (AT & AF)
• Focused briefings were presented to:– Industry groups and trade associations– DOT (Pos/Nav Executive Committee)– DoD (Policy Board on Federal Aviation)
2003 FRP User Conferences5
Stakeholder Comments
• Industry– Airlines and GA– MITRE/CAASD analysis and support
» Analyzed proposed minimum operating network (MON)
» Sponsored Industry Day – May 7, 2002
• Comments considered in the Transition Strategy
2003 FRP User Conferences6
Satellite NavigationServices
GPS and Augmentations• Global Positioning System (GPS)• Augmented for Accuracy, Availability,
Continuity, Coverage, and Integrity– Wide Area Augmentation System (WAAS)– Local Area Augmentation System (LAAS)
• WAAS procedures with vertical guidance begin in 2003– LNAV/VNAV– LPV
2003 FRP User Conferences7
Projected Navaid Services Transition
02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19
Minimum Operating NetworkVOR
ILS – CAT II/III Retained on current runways
WAAS
TACAN
DME
LAAS CAT I
LAAS CAT II/III
6 airports + options for 0 to 40 per year
R&D Required
Retain on at least one runway where required for backupILS – CAT I and Localizer-Only
NDB Long-Range Systems – Alaska and Coastal
2003 FRP User Conferences8
0
1
2
> 31005 VOR/VORTAC/VOR-DME
5,000’ AGL (75nmi radius)
Current VOR Coverage
2003 FRP User Conferences9
Projected MONVOR Coverage
471 VOR/VORTAC/VOR-DME5,000’ AGL (75nmi radius)
0
1
2
> 3
2003 FRP User Conferences10
GPS Backup Equipage
Operations Disruption
Threat Mitigation
GPS Interference Event
ProceduresOnly
VORMinimum Operating Network
Long-Range NDB’sILS
DME-DMEINSFMSILS
OperationalContingency
BackupCapability
RedundantCapability
2003 FRP User Conferences11
Architecture & Loran-C
• Ongoing research– FAA & Coast Guard
• Will Loran support:– Aviation nonprecision approach?– Maritime harbor entrance and
approach operations?– Time and frequency users?
2003 FRP User Conferences12
Summary
• FAA Has Proposed a Transition Strategy that considers:– GPS vulnerability– Backup requirements
• Strategy is being incorporated into the 2003 Federal Radionavigation Plan
• Opportunity for continued discussions with aviation community
The more we keep,
the greater the cost…
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