Download - Nextgen Aircraft Performance
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1NEXTOR/Virginia Tech - Air Transportation Systems Lab 1
Dr. Antonio A. Trani
Associate Professor of Civil Engineering
Virginia Polytechnic Institute and State University
Jan. 9-11, 2008
Falls Church, Virginia
Analysis of Air Transportation SystemsAnalysis of Air Transportation Systems
Aircraft Performance Capabilities and theirAircraft Performance Capabilities and their
Relationship withRelationship withNextGenNextGen
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Aircraft Performance/Equipage and NextGen
Aircraft capabilities are intrinsically related to NextGen
For example, aircraft equipage is an important issue indeploying various NextGen technologies such as:
ADS-B
WAAS Datalink
SWIM
In a network centric system the aircraft becomes a more
relevant player in NextGen (a node of in a more intelligentnetwork)
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Altitude
Downrange Distance
Transition Altitude
ConventionalCDA ProfileCDA Profile
Runway
TOD Point
Sequencing
Descent to RunwayDescent from Cruise
FAF
In-trail Delivery Error
(near runway)In-trail Delivery Error
(sequencing area)
!o - RWY!o - TOD
Example Capability Required in NextGen (Continuous
Descent Approaches)
In-trail delivery errorsFuel burn
ATC Workload
(reduction in messages)
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Observation of Terminal Area Descent
Profiles and Patterns
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Runway
PDARS Data
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Trajectory Based Operations Require Advanced
Avionics On-Board the Aircraft
Improvement in efficiency, capacity, and workload
distribution
Trajectory negotiation via Data link/TMA and ADS-B
allows more precise delivery, efficient flight paths, and
lower controller workload
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Trajectory Based Operations in NextGen
Continuous Descend Approaches (CDA) and tailored arrivals
could be commonplace in NextGen
ADS-B
SecondaryRadar Flight Data
ProcessingSystem
TailoredArrival
Controller
Datalink(CPDLC)
ADS-C
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Analysis of Air Transportation SystemsAnalysis of Air Transportation Systems
Emerging AircraftEmerging Aircraft
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Very Lights Jets
General purpose category of jet-powered aircraft weighting less than 10,000
lbs
Flying Aircraft
Cessna Mustang (Certified 2006)
Eclipse Aviation 500 (Certified 2006)
Adam 700 (2008)
Aircraft in development Embraer Phenom 100 (2008)
Diamond Jet (2009)
Honda Jet (2009)
Eclipse 500Eclipse 500
Cessna MustangCessna MustangAdam 700 (source Adam Aircraft)Adam 700 (source Adam Aircraft)
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Typical Very Light Jet Performance
Generic VLJ vehicle
Pressurized aircraft
All weather vehicle
Four revenue seats
360 mph cruise speed
Certified to fly into known icing conditions
700 nm practical with 2 passengers (4 seats total + 2 pilots)
1.5-3.0 million dollars
Public airports with effective runway length of 3,000 ft (correctedfor elevation)
Low Landing Minima capability provided to all airports Airport Design Group = A-I
Wake Vortex Classification = Small
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Projected Performance of VLJs
is Similar to that of Existing Light Jets
Shared Airspace with Airliners
Expected StageLength of VLJ flights
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Emerging Aircraft
Knowing the performance of emerging aircraft
technologies allows us to understand the impact of newvehicles in NextGen
NextGen needs to be flexible to accommodate all types of
aircraft in the future
VLJs Boeing 787-8
NASA Concept
For Tiltrotor (RIA)
Airbus A380
Sources: NASA, Boeing and Airbus web sitesSources: NASA, Boeing and Airbus web sites
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New Aircraft Add New Capabilities and Impacts
to NextGen Accelerates the replacement of older-technology aircraft
to meet social and environmental needs
Effect on ticket cost and airline profits
Ability to fly thinner long-range routes
Boeing 787-8Boeing 787-8 Airbus A350 XWBAirbus A350 XWB
Sources: Boeing and Airbus web sitesSources: Boeing and Airbus web sites
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Aircraft Technology Effects
Aircraft aerodynamics and engine technology yield
changes in payload-range capabilities
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177 passengers177 passengers
189 passengers189 passengers
MiamiMiami SeattleSeattle
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Aircraft Technology Effects
(Aircaft Replacement)
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Boeing 737-900ER
209 lb/passenger in a 2,367 nm route (e.g., Miami Seattle)
Boeing 757-200 272 lb/passenger in a 2,367 nm route (e.g., Miami -
Seattle)
23% fuel savings per passenger
Boeing 737-900ERBoeing 737-900ER
Boeing 757-200Boeing 757-200
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New routes can be opened with more capable and efficientaircraft
New aircraft markets are possible by-passing traditional
international hubs (JFK and MIA)
New class vehicles allow West Coast to Europe flights(Boeing 787-8 and Airbus A350 XWB)
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Aircraft Technology Effects
Boeing 787-8Boeing 787-8 Airbus A350 XWBAirbus A350 XWB
Sources: Boeing and Airbus web sitesSources: Boeing and Airbus web sites
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Dr. Antonio A. Trani
Associate Professor of Civil Engineering
Virginia Polytechnic Institute and State University
Jan. 9-11, 2008
Falls Church, Virginia
Analysis of Air Transportation SystemsAnalysis of Air Transportation Systems
Evolution of Airlines Markets andEvolution of Airlines Markets and
Aircraft FleetsAircraft Fleets
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Regional Aircraft Evolution
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1,170 daily flights typical
Regional Jet Market Network (Year 2000)
Source: FAA ETMS data
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8,890 daily flights (typical)
Regional Jet Market Network (Year 2006)
Source: FAA ETMS data
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Comparison of Regional Jet Performance and
Turboprops they Replaced
13,200 ft.28,400 ft.Typical Cruise
Altitude (ETMS)
320 mph520 mphCruise Speed
31,000 ft.37,000 ft.Service Ceiling
4,100 ft.5,650 ftTakeoff Distance
(MTOW) sea level
Saab 340Embraer 135Attribute
Significant changes in runway performance: impacts airport operations
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Understanding the NAS and NextGen requires a goodknowledge of the vehicles operating in the system
Aircraft performance capabilities are key to the success of
NextGen
Final Remarks
Airbus A350 XWBAirbus A350 XWBSource: AirbusSource: Airbus