Performance Based Navigation Ground Based Augmentation Systems

航空发表于 2010-8-21 01:29:00

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航空发表于 2010-8-21 01:29:16

Performance Based Navigation Ground Based Augmentation Systems Capt Chris Baur Beijing China October 29‐30 2009 GLS Flight Operations Outline 􀂾 RNP – Required Navigation Performance 􀂾 RNP/GLS Fusion - Approach concepts and benefits 􀂾 GNSS Landing System (GLS) implementation example 􀂾 Summary GLS Flight Operations RNP OVERVIEW • Aircraft Equipage – GPS – IRS – FMC • Procedure Design – NavData – Integrity • Operational Approval – Training GLS Flight Operations RNP OVERVIEW Narrow lateral linear segments (RNP‐0.3 or less with no secondary buffers) Curved segments anywhere along the approach (Radius‐to‐fix legs with shorter leg lengths) Guided, narrower turns on missed approaches (Radius‐to‐fix legs, and RNP‐1 or less) Performance‐based Vertical Buffers (Vertical Error Budget ) GLS Flight Operations RNP OVERVIEW GLS Flight Operations Airlines Equipping for GBAS (GLS) GLS Flight Operations Qantas Example GLS Flight Operations Qantas Example GLS Flight Operations Qantas Example 􀂾 ILS: stabilized on the localizer at 10 NM or more 􀂾 GLS: multiple final approach segments as close as 4NM 􀂾 RNP minimums ≥ 250’ • RNP is a non-precision approach 􀂾 GLS minimums 200’ Cat I • Cat II/III 2012-2014 • Precision approach 􀂾 RNP ≤ .3NM: SAAAR 􀂾 GLS final: no SAAAR 􀂾 Potential to eliminate RAIM GLS Flight Operations GBAS Features While stand alone GPS does not have the integrity, availability, or accuracy required for precision approaches, Ground Based Augmentation Systems (GBAS/) will provide GLS equipped aircraft with Cat I/II/III precision approach capabilities. GLS Flight Operations GBAS Features Cost Benefit Analysis What Capacity Costs without Reliability Holding – 1000 lbs add fuel Excessive Vectoring » Example typical 1000 nm sortie w/75 nm Delay Vectors and non‐optimal routing = $3M/yr » Excessive Low Altitude flying – 1500 lbs add fuel SNB – Diversions – Average $5K SNB ‐ $12K WB – Miss‐Connected Passengers ‐ $50‐$100K – Ground Delay Programs » (2) Engines at idle = $80/min » Delay Vectors and Altitude Restrictions Filename.ppt | 12 Cost Benefit Analysis Assumptions • Continued Traffic Growth – Economic Expansion, Passenger Demand, Cargo Demand – Domestic, International & Foreign Operators – Capacity Improvements • Increased Emphasis on Operational Efficiency & Environmental Issues – Noise Footprint Reduction – Exploitation of Green Technologies (1) Lb Fuel = 3.15 lbs Co2 • Upward Pressure Cost/Demand of Fuel Cost Benefit Analysis Case Study : NYC NEW YORK CITY LGA Arrivals EWR Departures JFK
 GLS Flight Operations Curved Path Multi-Mode Approach Guam – Won Pat International PGUM
RNAV ARRIVAL to RUNWAY EWR Plan view RNAV/RNP GBAS FINAL HUGHES PROPRIETY GLS Flight Operations Curved Path Multi-Mode Approach Newark – Liberty International Airport ‐ KEWR Honeywell SmartPath Capability: User Definable Glide Path Angle GBAS / GLS An ILS system provides a single defined glide path forcing the aircraft to fly the same descent angle for every approach. An ILS cannot be reprogrammed to vary this glide path angle……GLS CAN! This allows an airport to provide varying angles to assist with wake turbulence separation for adjacent runways. Honeywell SmartPath Capability: User Definable Touchdown Point GBAS / GLS An ILS system provides a single defined vertical path that places the aircraft at the same point on the runway each landing. However, ILS cannot be reprogrammed to move this touch down point……GLS CAN! This allows an airport to perform routine maintenance on an runway without removing the approach system. GLS ILS GLS Flight Operations Summary 􀂾Ground Based Augmentation provides increased accuracy compared to traditional ground or space-based Navigation Aids 􀂾GBAS can be flown Independently or in Fusion with RNP Procedures 􀂾RAIM Performance (Receiver Autonomous Integrity Monitoring) 􀂾Cost Effective – Purchase, Install & Operate 􀂾Can support TAPs, & CAT I/II/III 􀂾Curved Path Multi-Mode Approaches 􀂾GBAS is runway independent Suited for Flood, Hurricane/Typhoon or high security locations 􀂾Provides multiple approaches to all runways Variable Geometric Glide path – Displaced threshold GLS Flight Operations Questions

drjones 发表于 2010-9-1 09:28:47

很好！正对此感兴趣！

solakzlq 发表于 2011-4-2 21:34:02

看看情况。。。

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Performance Based Navigation Ground Based Augmentation Systems

很好！正对此感兴趣 ！

很好！正对此感兴趣！