Presentation to US Space-Based PNT Advisory Board 4 October 2007 GBAS Cat-1 Sydney GRAS Keith McPherson Manager GNSS Airservices Australia

GBAS Program Overview Honeywell awarded FAA LAAS Program Full scale GBAS development started 2006 Certification process underway Red label systems March 2008 Certified production systems in late 2008 Normal Not Available Test Service Alert Silence Honeywell SLS 4000 The new SLS 4000

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N The “Hook” at Sydney airport extending into Botany Bay N GPS Reference Receiver Antennas VHF Data Link Antenna Sydney GBAS Operations started Nov 06 QANTAS: First B737-NGs with operational GBAS Cat-I First full fleet fitment of GLS (737 fleet) Lead customer for GLS on A-380s AIRBUS: First A-380 used Sydney GBAS Cat-I 6-8 Jun 07 GLS Facility Shelter Overview of the Sydney site, out on the hook that extends into Botany Bay. N

All 6 Runways Programmed GBAS Cat-1 Sydney All 6 Runways Programmed And Being Used

A-380 lands at Sydney International using GBAS Cat-I June 2007

Flexible Approaches End Aim: Cat II/III and Flexible Approaches Guided Departures Terrain Restrictions GRAS and GBAS provide Vertical Guidance and Flexible approaches Angled Approach Community Noise Straight Approach Runways Parallel Approach Displaced thresholds can increase throughput, And provide short taxi-times Sectored Approach Multiple glide-slopes are available to help overcome environmental issues Curved Approach

Why GRAS? New ICAO approved approach minima (APV) means Australia and other States need to make a decision on the way ahead. WAAS moved its footprint over the Pacific 35° further east in July 2007 MSAS has one orbital determination/monitoring station in Australia at Uriarra near Canberra. MSAS Service Volume does not reach Australia. GAGAN does not cover all of Australia Sovereignty Issues

SBAS Service Volumes

High density traffic area Sydney-Melbourne

Service Volume Footprint

Current WAAS satellite coverage 30 Jun 07

Future WAAS satellite coverage from 31 July 2007

GRAS Program Overview Similar to SBAS and GBAS Test bed completed 2005 Full Scale Development started 2005 ICAO SARPs issued November 2006 RTCA MOPS approved September 2007 Operational testing mid 2008 Certified production systems 2009 Normal Not Available Test Service Alert Silence

Technology Overview NPA 400-600ft GRAS 250ft GBAS 200ft GRAS Transmitters Sydney Airport Regional Airport Increased safety, accuracy & integrity More efficient approaches Reduced infrastructure & real estate Increased Guided missed approaches Increased Integrity Supports ADS-B - accurate surveillance Assists UPR & UPT Mixed Mode operation with RNP Guided Departures Situational Awareness Accurate departure tracks Environmental saving

National Aerodromes

National GRAS Coverage at 10,000 ft MSL

GPS Outages Australia Date: 4-Oct-2007 1315 UTC Briefing reference number: 043365 SYDNEY (YSSY) GPS RAIM PREDICTION 031401 YSSY TSO-C129 (AND EQUIVALENT) FAULT DETECTION NO GPS RAIM FD OUTAGES FOR NPA TSO-C146A (AND EQUIVALENT) FAULT DETECTION AND EXCLUSION 10040207 TIL 10040215 10040430 TIL 10040439 10040635 TIL 10040642 10040648 TIL 10040743 [55 minutes] 10050203 TIL 10050211 10050426 TIL 10050435 10050631 TIL 10050638 10050644 TIL 10050739 [55 minutes] 10060159 TIL 10060207 10060422 TIL 10060431 10060627 TIL 10060634 10060640 TIL 10060735 [55 minutes] GPS RAIM FDE UNAVBL FOR NPA Aircraft must carry a terrestrial nav aid for alternate airfield Problem is piggy backing GPS SVs closely aligned geometrically

Thank you