Analysis of Air Transportation Systems Fundamentals of Aircraft ...

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Remarks About the Aircraft AccelerationEquation• The acceleration capability of the aircraft decreases asspeed is gained during the takeoff roll due to a reductionin the thrust produced by the engines• If Eq. 22 is integrated twice between an initial speed, V 0and the lift-off speed, V lo the distance traversed during thetakeoff roll can be found• Usually this requires a computer simulation since manyparameters such as T and f roll vary with speed (timevarying) making the coefficient of the differentialequation of motion time dependent.Virginia Tech - Air Transportation Systems Laboratory 32
Aerodynamic Coefficients• The flap setting affects C D and C L and hence affectsacceleration and runway length required for a takeoff.Typical variations of C D with flap angle are shown belowC DConstant Angle of AttackC LConstant Angle of Attack5 10 15 20 255 10 15 20 25Flap Angle (degrees)Flap Angle (degrees)Figure 3.Typical Variations of C D and C L with Aircraft Wing Flap Angle.Virginia Tech - Air Transportation Systems Laboratory 33
Page 2 and 3: Introductory RemarksAir vehicles ar
Page 4 and 5: Aircraft Performance Basics(Interna
Page 6 and 7: Basic Relationships to Uderstand th
Page 8 and 9: Atmosphere with Constant Temperatur
Page 10 and 11: Atmosphere with Linear Temperature
Page 12 and 13: Atmosphere with Linear Temperature
Page 14 and 15: International Standard AtmosphereCh
Page 16 and 17: Important Aircraft Speed Terms to K
Page 18 and 19: Air Compressibility EffectsA mathem
Page 20 and 21: Example ComputationBoeing 737-300 (
Page 22 and 23: Sample Matlab Code Used (ISAM.m)Vir
Page 24 and 25: Plot of CAS vs. TAS (Subsonic Aircr
Page 26 and 27: Aircraft Runway Length PerformanceE
Page 28 and 29: Functional Forms of the ForcesThe f
Page 30 and 31: Notes on Various Parameters1) C L a
Page 34 and 35: Flap Angle• Angle formed between
Page 36 and 37: Remarks• The mass of the aircraft
Page 38 and 39: • At large flap angles (> 25 degr
Page 40 and 41: A Word on Stalling and Lift-off Spe
Page 42 and 43: These considerations are necessary
Page 44 and 45: Integration of Acceleration Equatio
Page 46 and 47: Aircraft Speed During Takeoff RollN
Page 48 and 49: Takeoff Roll Distance vs. Aircraft
Page 50 and 51: General Procedure for Runway Length
Page 52 and 53: FAR Certification ProceduresFAR 25
Page 54 and 55: Landing Distance CaseThe landing di
Page 56 and 57: Engine-Out Takeoff CaseDictated by
Page 58 and 59: Runway Length Procedures (AC 150/53
Page 60 and 61: Contents of Advisory Circular 150/5
Page 62 and 63: Groupings Method AC 150/5325-4 (Fig
Page 64 and 65: Sample Calculations (FAA AC 150-532
Page 66 and 67: a) If MALW > DTW use DTW in your co
Page 68 and 69: III) Landing and Takeoff Runway Len
Page 70 and 71: I) Landing Analysisa) Estimate the
Page 72 and 73: 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 124 and 125:
Sample Thrust Variations (PW JT9D E
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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