FAA SATNAV APPROVALS ICAO CAR/SAM ATN/GNSS SEMINAR Hank Cabler Presentation GNSS 7.3 by Hank Cabler Co-Chairman, SOIT

History 1993 GPS Approved for use in multi-sensor applications (FMS) also Phase 1 overlays 1994 GPS Approved for IFR use Enroute Domestic--same as other RNAV systems Oceanic--used only with dissimilar LRNS Terminal--SIDS & STARS Approach--overlays & stand-alone 1995 GPS “Primary-means” approval for oceanic & remote 1999 GPS SCAT-1 approval 2001 WAAS approved for VFR

Current Status GPS Approaches ~3500 New RNAV approach chart Designed to support WAAS, GPS, RNP 0.3, FMS Baro-VNAV WAAS (SBAS) LNAV/VNAV Commissioning Scheduled in 2003 LPV - new approach concept LAAS CAT I in 2004 LAAS CAT II & III later RNP/RNAV standards development underway

GPS Docs GPS IFR AC 90-94-- GPS operational guidance TSO C-129A--equipment standard AC 20-130 & 20-138--installation standard Oceanic & Remote HBAT 95-09--operational guidance N8110.60--equipment standard HTTP://GPS.FAA.GOV

New RNAV SIAPs

New RNAV Approach Plate Approach and landing operations with vertical guidance (APV) - An instrument approach and landing which utilizes lateral and vertical guidance but does not meet the requirements established for precision approach and landing operations. LPV - a new line of minima using the Wide Area Augmentation System (WAAS). This approach combines the lateral precision of a localizer with the vertical performance of APV-1. Provides significant operational benefits as compared to LNAV/VNAV approaches. LNAV/VNAV - A vertically guided approach with a decision altitude down to 350 feet above the runway touchdown point (HAT). Requires a WAAS-certified receiver (or certain Flight Management Systems with barometric VNAV). Visibility requirements are generally one mile at airports without approach lighting systems. LNAV - A nonprecision approach (no vertical guidance) with a minimum descent altitude (MDA) of 250 feet above obstacles along the flight path. At many airports, LNAV approaches will have lower minimums than existing VOR or NDB approaches. LNAV approaches can be conducted today with approach-certified (TSO-129) GPS receivers. Because old definitions of ‘precision" and "non-precision" approaches don’t fit the new world of satellite navigation, FAA has developed new terms and standards for instrument approaches grouped under the general category of RNAV (area navigation). New RNAV instrument approach charts, already appearing in approach plate books, include: LPV - NOTE: At the latest ICAO GNSS Panel meeting, the APV-1 definition was re-written to reflect these performance standards. LNAV/VNAV - A vertically guided approach with a decision altitude down to 350 feet above the runway touchdown point (HAT). Requires a WAAS-certified receiver (or certain Flight Management Systems with barometric VNAV). Visibility requirements are generally one mile at airports without approach lighting systems. LNAV - A "non-precision" approach (no vertical guidance) with a minimum descent altitude (MDA) of 250 feet above obstacles along the flight path. At many airports, LNAV approaches will have lower minimums than existing VOR or NDB approaches. LNAV approaches can be conducted today with approach-certified (TSO-129) GPS receivers.

WAAS Status WAAS Prime Contract Development Is Ahead Of Schedule Contractor Acceptance Is Expected In Second Quarter Of FY 03 Commissioning Expected By Dec 03 WAAS Hardware Is Fielded And Software Development Completed To Provide A Signal-In-Space Software Integrity Monitors And Safety Analyses Are Being Revised To Insure System Certification For IFR Use WAAS Is Being Developed Using An Incremental Strategy To Provide Benefits As They Become Available GEO Satellite Acquisition Activities Underway System Is Broadcasting 24/7 And Is Providing A Robust And Reliable Signal-In-Space To A Variety Of Users

LAAS Status User Requirements: CAT I with advanced procedures ASAP! Government Industry Partnership (GIP) to develop non-Fed CAT I system under FAA Type Acceptance process (Honeywell, Raytheon, Thales) Honeywell - “Beta LAAS” at ORD, MDW, MEM, SEA Raytheon prototype (SCAT conversion) at SLC Thales prototype planned at New Century Airport, KS First LAAS CAT I commissioned December 2004 CAT II & III later User Requirements: CAT I with advanced procedures ASAP!

Questions?? hank.cabler@faa.gov http://gps.faa.gov