# Presentation: 491010

## FAA’s  Implementation Plansfor Satellite Navigation

**8th European CGSIC/IISC Meeting, Prague**
**December 2-3, 1999**

**FAA’s  Implementation Plans****for Satellite Navigation**

## Overview

**Background**
**SATNAV Program Objectives**
**Wide Area Augmentation System (WAAS)**
**Local Area Augmentation System (LAAS)**
**Summary**

## Basic GPS Civil Aviation Benefits

**Improves Aviation System Safety**
**Available for Primary Use in the Oceanic Phase of Flight**
**Available for Supplemental Use for En Route, Terminal, and Non-Precision Phases of Flight**
**Cost Effective Resource for Nations with Limited Air Navigation Infrastructures**
**Primary Means Use of GPS can Reduce or Eliminate Maintenance Costs Associated with Older Expensive Ground-based Navigation Aids**

## Current Navigation Deficiencies

**Large Separation Standard Requirements**
**Lack of accurate Aircraft Position/Navigation Data**
**Inability to Provide Optimum Routings to all Users**
**Absence of Instrument Approaches at Qualified Runways**
**Restrictive Departure Procedures in Poor Visibility**
**Limited Automated Aircraft Surface Navigation**

## Basic GPS System Limitations

**Integrity**
**Notification Time: 15 Minutes or Greater**
**Availability**
**70% for 24 satellites**
**98% for 21 satellites**
**Accuracy**
**Sufficient for En Route through Non-Precision Approach**
**Not Sufficient for Precision Approach**

**Does not satisfy Civil Aviation Requirements**
**for Primary-means Navigation in all Phases of Flight**

## Satellite Navigation Program Objective

## Wide Area Augmentation System (WAAS)

***Safer ***

***Increased Capacity ***

***Cost Effective***

## WAAS Phase I Status

**Hardware Installed and Tested**
**25 WAAS Reference Stations (WRS)**
**2 WAAS Master Stations (WMS)**
**Communications Installed and Operational**
**2 INMARSAT Satellites (AOR-W and POR)**
**Terrestrial Communications Network**
**Software**
**Software Final Qualification Test Completed**
**7 of 8 Design Qualification Tests Completed**
**Successfully Completed 3 Signal in Space Builds**
**System Integration Completed**

## WAAS Phase I Capabilities

**Introduces Operational Capability**
**Non-Precision Approach**
**Precision approach: WAAS Precision Approach procedures and GPS/WAAS Certified Receivers Will Become Available to the Aviation Community **
**Increases Quantity of Airfields with Precision approach Capability**

## 60 Day Stability Test/DQT	1/30/00
Contractor Acceptance Inspection	4/25/00
Joint Resource Council In Service Review (ISR) Decision	6/30/00
Instrument Approaches Published	9/07/00
Commissioning (IOC)	9/25/00

**Contractor Acceptance Inspection****	****4/25/00**
**Joint Resource Council In Service ****Review (ISR) Decision****	****6/30/00**
**Instrument Approaches Published****	****9/07/00**
**Commissioning (IOC)****	****9/25/00**

**WAAS Phase I****Schedule**

## WAAS FOCInvestment Analysis

**Scope:**
**Congress Wants SatNav Program to be “Most Cost-Beneficial”**
**Congress Wants FAA to Conduct Lease vs. Buy of WAAS Satellites**
**FAA Needs to Re-Baseline WAAS and LAAS Programs**
**Approach:**** **
**Involve Users, Industry, and Government Agencies**
**Re-Calculate Benefits/Costs Using Conservative Approach**
**Focus on Risk Reduction Strategies in Determining Recommendations**

## WAAS FOCInvestment Analysis (Cont’d)

**Four Alternatives Developed and Analyzed;  Includes Different Levels of Investment in WAAS/LAAS/Navaids**
**Preferred Alternative Based on Performance, Benefit/Cost (2.4), Risks, and Strategic Considerations**
**Checkpoints Built to Minimize Risk and Allow Alternate Paths**
**Navaids Reduced 2008-2013 to Basic Backup Network **
**4 GEO Satellites to be Acquired Between 2002 and 2008**
**Precision Approach Throughout CONUS**
**Capable of Being the Only Navigation System in an Aircraft**
**Final Operating Capability (FOC) FY2006**
**Capable of Being the Only Navigation Service Provided by the FAA**

## Local Area Augmentation System (LAAS)

**L1 - 1575.42 MHz**

## LAASAcquisition Schedule

***99******	******01******	******03******	******05******	******07******	******09******	******11***

**R&D**

**20    20     20     7      7       8       8       8      8 **

**26   26    26**

***Assumed by FAA for Maintenance/Liability***

**18**

**CAT I Part 171**

**CAT I Acquisition**

**CAT III FSD**

**CAT III Conversion from CAT I**

**CAT III New Procurement**

**12     12     12       **

***(Total of 124 CAT I)***

***(Total 0f 114 CAT III)***

***(Converts78 CAT I to CAT III)***

**SUMMARY:  160 Total LAAS**
**	****   ****-  46 CAT I**
**	****   ****-  114 CAT III (78 CAT I Conversion + 36 New Procurement)**

## Summary

**On September 2, 1999, the FAA JRC Reinforced the FAA’s Commitment to Satellite-Based Navigation**
**WAAS and LAAS Baseline Approved**
**Low-End Users Get Safety and Access**
**High-End Users Get:**
**Improved Safety**
**More Airports and Runways**
**More Efficiencies in Airspace and Terminal Areas**
**FAA Gets Modernization of NAS**
**Improved Safety, Improved Efficiency, and Reduced Cost**

## FAA GPS Product TeamWebsite

**For further information on the FAA’s ****WAAS Program, please visit our website at:**
**http://gps.faa.gov**