Analysis of Air Transportation Systems Fundamentals of Aircraft ...

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Sample Thrust Variations (PW JT9D Engine)Observe the large variations of thrust with respect toaircraft altitudeMaximum Continuous ThrustVirginia Tech - Air Transportation Systems Laboratory 124
Modeling Thrust Using a Thrust Lapse GradientA simple way to model thrust as a function of altitude ispresented below:!T h Th0 ----# % $& m=! 0(33)where:T h is the thrust at altitude, T 0is the sea level static thrust,! h ! 0and are the density values at altitude and at sealevel, respectivelymis an empirical coefficient derived from real dataVirginia Tech - Air Transportation Systems Laboratory 125
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Introductory RemarksAir vehicles ar
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Aircraft Performance Basics(Interna
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Basic Relationships to Uderstand th
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Atmosphere with Constant Temperatur
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Atmosphere with Linear Temperature
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Atmosphere with Linear Temperature
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International Standard AtmosphereCh
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Important Aircraft Speed Terms to K
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Air Compressibility EffectsA mathem
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Example ComputationBoeing 737-300 (
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Sample Matlab Code Used (ISAM.m)Vir
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Plot of CAS vs. TAS (Subsonic Aircr
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Aircraft Runway Length PerformanceE
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Functional Forms of the ForcesThe f
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Notes on Various Parameters1) C L a
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Remarks About the Aircraft Accelera
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Flap Angle• Angle formed between
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Remarks• The mass of the aircraft
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• At large flap angles (> 25 degr
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A Word on Stalling and Lift-off Spe
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These considerations are necessary
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Integration of Acceleration Equatio
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Aircraft Speed During Takeoff RollN
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Takeoff Roll Distance vs. Aircraft
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General Procedure for Runway Length
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FAR Certification ProceduresFAR 25
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Landing Distance CaseThe landing di
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Engine-Out Takeoff CaseDictated by
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Runway Length Procedures (AC 150/53
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Contents of Advisory Circular 150/5
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Groupings Method AC 150/5325-4 (Fig
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Sample Calculations (FAA AC 150-532
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a) If MALW > DTW use DTW in your co
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III) Landing and Takeoff Runway Len
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I) Landing Analysisa) Estimate the
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Simple interpolation for a flap ang
Page 74 and 75: c) Compute the takeoff runway lengt
Page 76 and 77: Runway Length Analysis usingAircraf
Page 78 and 79: IAD-BGR TripIAD4,200 nmBGRVirginia
Page 80 and 81: Boeing 777-200 (GE Engines)Virginia
Page 82 and 83: Computation of Fuel WeightThis anal
Page 84 and 85: Explanation of Payload-Range Diagra
Page 86 and 87: Payload-Range Diagrams Explanations
Page 88 and 89: Sample Payload Range DiagramsPayloa
Page 90 and 91: Payload Range Diagrams (B777)Virgin
Page 92 and 93: Payload Range Diagrams (A320)Virgin
Page 94 and 95: Payload Range Dagrams (A380)Virgini
Page 96 and 97: Presentation of Runway Length Infor
Page 98 and 99: Boeing 777-200 HGW Takeoff Performa
Page 100 and 101: Landing AnalysisThis analysis is si
Page 102 and 103: Reconcile Takeoff and Landing Cases
Page 104 and 105: Other Considerations in Runway Leng
Page 106 and 107: Some Runway Design TermsThe followi
Page 108 and 109: Sketch of RPZVirginia Tech - Air Tr
Page 110 and 111: Runway Object Free Area (ROFA or OF
Page 112 and 113: OFA Dimensions (Approach Cat. C and
Page 114 and 115: Example Runway Design for Boeing 77
Page 116 and 117: Climb PerformanceMany airport and a
Page 118 and 119: Climb Performance Model Simplificat
Page 120 and 121: Final Derivation of Climb Rate Expr
Page 122 and 123: Modeling Aircraft Thrust• Thrust
Page 126 and 127: Takeoff Thrust Variations with Spee
Page 128 and 129: Variations of Cruise TSFC (PW JT9D
Page 130: Typical Rate of Climb EnvelopeItera
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Analysis of Air Transportation Systems Fundamentals of Aircraft ...

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