faa satellite navigation – status briefing 1 federal aviation administration january 5, 2007

FAA Satellite Navigation – Status Briefing1Federal Aviation

AdministrationJanuary 5, 2007



U.S. Satellite-Based Navigation Systems

Basic GPS:

Approved for Aviation Use in 1992

WAAS (SBAS):

Commissioned for Aviation Use in 2003

LAAS (GBAS):

Currently in Development, Initial Certification ~ 2008



Wide Area Augmentation System (WAAS)



WAAS Architecture

29 Operational

Reference Stations

9 International

Sites Not Yet Operational

3 Master

Stations

4 Signal Generator

System/ Ground

Earth Stations

2 Geostationary

Satellite with Uplinks

2 Operational

Control Centers



• April 2007 – Telesat Becomes Operational

GEO Transition

POR178E

AOR/W54W

Telesat107W

PanAmSat133W

• Former Constellation – AOR/W and POR• February 2006 – AOR/W Moved From 54° to 142°• November 2006 – PanAmSat Became Operational

AOR/W142W



Future GEOs

Telesat107W

PanAmSat133W

• Future Constellation – PanAmSat and Telesat



WAAS Service CoverageSnapshots

January 3, 2007



WAAS Service CoverageLPV and LNAV/VNAV Service Contours

November 1, 2006January 3, 2007



WAAS Service Coverage NPA Service Contour

January 3, 2007



* As of December 21, 2006

Airports with WAAS (LPV) Procedures

646 Approaches*



LPV Minimum Line

WAAS Channel Number

WAAS Approach ID

W=WAAS24=Runway 24

A=1st WAAS ApproachTo Rwy 24

Temperature RestrictionDoes Not Apply to WAAS

Equipment

WAAS andRNAV

Approach Charts

NOT FOR NAVIGATION



WAAS Approach Procedures

Existing Procedures*:– 2,891 GPS NPA – 1,046 LNAV/VNAV– 646 LPVs

* As of December 21, 2006

Procedure Production:– 300 new LPVs each year

(FAA Flight Plan Goal)



WAAS Avionics

• Avionics– Garmin GNS-480/CNX-80 – Available Now

• Estimated 4,000 units sold (as of late 2006)

– Garmin 400/500 Series Upgrade – Available January 2007• Of the 70,000 units sold, roughly 18,000 have pre-paid for the upgrade (as of late

2006)

– Rockwell Collins unit supporting high-end FMS users (initial delivery to FAA for approval) - Expected March 2008

– Rockwell Collins WAAS LPV Upgrade for Challenger 604 (FAA flight inspection aircraft) - Scheduled for August 2007

– Chelton, CMC, Universal, and Thales – Expected availability 2007/2008



Preparing Airports for WAAS • WAAS Provides a Space-Based ILS-like Approach

– No ground navigation hardware required– WAAS uses the same ILS obstacle evaluation area and procedure criteria *

• Airport Infrastructure Needed– Paved runways over 3200 ft. long by 60 ft. wide– Non-precision runway markings (or better)– Runway safety zone

• Airport Infrastructure Recommended to Obtain the lowest possible minima– Parallel taxiway (reduces decision height, but not mandatory)– Medium Intensity Runway Lights (reduces visibility and provides for night operations)

• Steps To Prepare Airport1) Review information on getting an instrument approach at: http://avn.faa.gov/index.asp?

xml=ifp/index2) Contact Airport District Office to determine Infrastructure requirements/improvements3) Determine if required level of airport survey exists, is scheduled, or will be acquired.

* The same terrain issues that can prevent an ILS approach also pertain to LPVs.



Local Area Augmentation System(LAAS)



LAAS Benefits

• Precision Approach Service - CAT I/II/III• One LAAS Serves All Runway Ends• Potential for Reduced Facility Costs• Guided Missed Approaches• Provides Guidance for Complex Approaches• Siting Flexibility allows service where ILS Can’t be

installed• May eliminate some ILS Critical Areas• Tighter Spacing Due to More Accurate Navigation• Parallel Simultaneous Instrument Approach Procedures



Multiple Approach Capability of LAAS

70,000 square mileservice volumecould include

other nearby airports

Similar set of reciprocalway-points can define

missed-approach,go-around procedures,

SIDs and STARs

VDB transmission include• Differential GPS corrections• Final approach segment (FAS)• Way-point data listing blocks• Ground station and approach ID

Omni-directional VDBRadiates out to 150 miles

(line of site)

Pilot selects one of several

“approved” approaches

Control codes selectVHF frequency and

approach listingblocks of way-points

21340

25016

30156

38254

49502

LAAS

GPS RX VHF TX

Angled Approach

Straight Approach

Sectored Approach

Parallel Approach

Curved Approach



What Is the Status of LAAS?

• In Research and Development

• Initial CAT I Capability Scheduled for 2008

• LAAS Ground System Prototype Being Tested in Memphis

• Avionics Already Available on Boeing & Airbus Aircraft

– Boeing 737 new generation aircraft equipped with Multi Mode Receiver (MMR) Terminal Area

• Procedures Being Developed and Flight Tested at FAA Technical Center

– Flight Tests Completed in Memphis in September 2006 Using FedEx Aircraft

• Prototype LAAS procedures (ILS overlays) developed for Memphis (MEM)



Frankfurt, Germany

Rio de Janeiro,

Brazil

Malaga,Spain

LAAS/GBAS International Efforts

Sydney, Australia



GPS

Available Now!

Summary

WAAS (SBAS)

Available Now!

LAAS (GBAS)

Scheduled for 2008

faa satellite navigation – status briefing 1 federal aviation administration january 5, 2007

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