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1 FEDERAL AVIATION ADMINISTRATION FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA Oklahoma City, OK, USA November 12, 2003 Dr. David N. Lankford (FAA/AFS-440) Shahar Ladecky (ATSI) Airspace Simulation and Analysis for TERPS (Terminal Procedures) Dr. David N. Lankford

FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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Page 1: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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FEDERAL AVIATION ADMINISTRATIONFEDERAL AVIATION ADMINISTRATION

FLIGHT OPERATIONS, SIMULATION, andFLIGHT OPERATIONS, SIMULATION, andANALYSIS BRANCH, AFS-440ANALYSIS BRANCH, AFS-440

Oklahoma City, OK, USAOklahoma City, OK, USA

November 12, 2003

Dr. David N. Lankford (FAA/AFS-440)Shahar Ladecky (ATSI)

Airspace Simulation and Analysis for TERPS(Terminal Procedures)

Dr. David N. Lankford

Page 2: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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What is ASAT?

A multifaceted computer tool foraviation related simulations and

safety evaluations

Partnerships with Industry &Government (1)

● NASA (AILS, AVOSS, SATS)● Boeing (Aircraft models)● Bell, Sikorsky (and Eurocopter) (Helicopter

models)● Smiths (FMS software)● Air Traffic Simulation, Inc (simulation

software & automation tools)

Page 3: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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Partnerships with Industry &Government (2)

● University of Central Oklahoma(Research programs)

● University of Oklahoma (GPS flighttests)

● Airlines (American, Continental,United, Delta, etc.)

● Airports (SFO, DFW/DAL, ORD, etc.)● FAA (AVN, AT, AND, ASY, ASC, etc.)

What has ASAT been used for?

Page 4: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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ASAT Projects

● MPAP (PRM)● St. Louis● San Francisco● Philadelphia● DFW/Dallas● Juneau● John F. Kennedy● Denver● Newark● Boston● Detroit

● SOIA● 250 Kts Departures● Ghosting (CRDA)● FMS/MA● AILS (NASA)● Wake Vortex● GPS/WAAS/LAAS● RNP/RNAV● OFZ/NLA● LAHSO● Cleveland● …Others (many…)

ASAT technical presentation.

Shahar Ladecky, ATSI

Page 5: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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ASAT consists of various high fidelitymodels representing each component ofgiven real life scenarios such as:

● Aircraft■Flight Dynamics■Propulsion/Performance

■Wake Turbulence (AVOSS)

■On board Avionics

How does ASAT do it? (1)

● Geographical/Geodetic■Digital Terrain Elevation Data (DTED)

■Obstacles

● Environmental■Standard Atmosphere

■Non-Standard Atmosphere

■Measured Wind and Temperature GradientsData

How does ASAT do it? (2)

Page 6: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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● Navigation Ground Systems

● Surveillance■PRM

■ASR-9

■ARSR

■TCAS■ADS-B

How does ASAT do it? (3)

● Human Factors■Pilot

■ATC

How does ASAT do it? (4)

Page 7: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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How does ASAT do it? (5)

③ Sample Statistical Variables(only a few are listed!):" Human:

• Pilot• Controller

" Operational

" Procedural" Aircraft Performance" Environment

" …

● The high-fidelity models use high fidelitydata representing a wide range ofoperational aspects.

How does ASAT do it? (6)

Page 8: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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How does ASAT do it? (7)

Models interact with each other like in reallife...

Environment

ATCOn-BoardSystems

Pilot

SurveillanceEnvironment

Geog/Geod

Aircraft

GroundNavigationSystems

Geog/Geod

Tile # i @ T+∆T

Tile # i+1 @ T+∆T

AircraftTrajectory

Wake @ T+½∆T

Wake @ T

Wake @ T+∆T

WIND

AVOSS Implementation

Page 9: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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Typical AVOSS Temperature Data

0

500

1000

1500

2000

22 23 24 25 26 27

Am bient Tem perature [C ]

Alti

tud

e [F

T]

T yp ic a l A V O S S C ro ss W in d M o d e l

0

5 00

1 00 0

1 50 0

2 00 0

0 2 4 6 8 1 0 1 2 1 4

C ro ss-W in d In ten sity [K TS ]

Alt

itu

de

[FT

]

Page 10: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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…and to summarize…

How does ASAT do it? (7)

ASAT will give us an educated answer about:

What happensWhere does it happen

How Much happensHow Often it happens and

When does it happen

ASAT: The Bottom Line...

Page 11: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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INPUTS:

• Aircraft (and/or)

• Flight Simulators

• Pilots

• ATC

• Environment

• Obstacles

• Terrain

• Nav-aids

• Avionics

•Others . . .

ASAT ANSWER

or in a simple way...

Metrics (Whatto Measure?)

OperationalScenario

ASAT: Versatile Implementation

ASAT can provide answers in two waysnamely;

� Deterministic: does a particular event ofinterest occur?

� Statistical: what is the probability of anevent to occur or

Page 12: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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INPUTS:

• Aircraft (and/or)

• Flight Simulators

• Pilots

• ATC

• Environment

• Obstacles

• Terrain

• Nav-aids

• Avionics

•etc, etc, etc...

ASATLevel of Safety

10-?

Risk of Mid-Air Collision (NMAC)

Closest Point ofApproach (CPA)

BlunderScenario

INPUTS:

• Aircraft (and/or)

• Flight Simulators

• Pilots

• ATC

• Environment

• Obstacles

• Terrain

• Nav-aids

• Avionics

•etc, etc, etc...

ASAT

Risk of Wake Vortex Encounter

Did EncounterOccur?

Wake VortexScenario

Distance BetweenWake and TrailingA/C

Page 13: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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ASAT: A380 Study Case (1)

ASAT can determine wake vortexencounter geometry and wake vortexstrength (Γ).

ASAT’s output has been costomizedto facilitate easy data transfer toAirbus’ VESA analysis tool.

ASAT

ASAT: A380 Study Case (2)

Wake data andtrailing Aircraftrelative geometryWake Vortex

Scenario

Distance BetweenWake and TrailingA/C

VESA

Page 14: FEDERAL AVIATION ADMINISTRATION - skybrary.aero · FEDERAL AVIATION ADMINISTRATION FLIGHT OPERATIONS, SIMULATION, and ANALYSIS BRANCH, AFS-440 Oklahoma City, OK, USA November 12,

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ASATAVIA

Demonstration

(ASAT-AVOSS-SOIA Tool)