ESDU A-Z Index: SOL-STD
- Effect on Equilibrium Surface Temperature Due to Aerodynamic Heating, 69009
- Effect on Temperatures of Self-Contained Bearing Assemblies, 78029
- Total Irradiance Within Atmosphere
- scattering and absorption by ozone and water vapour, 69015
- scattering by dry atmosphere and dust, 69015
- solar constant, 69015
- spectral distribution, 69015
- variation with altitude, location, season and hour, 69015
- see
- Porosity
- see
- Acoustic Fatigue
- Aerofoils
- pressure distribution, 69013, TD MEMO 6511
- Cones
- conditions for existence on surface, 70008, 70009, 70010, AERO S.00.03.16
- Wedges
- conditions for existence on surface, AERO S.00.03.16
- Aerofoils, 69013, TD MEMO 6511
- see also
- Acoustic Absorption Coefficient
- Acoustic Impedance
- Aircraft Noise Series
- Atmospheric Effects on Sound
- Crossflow Heat Exchangers
- Noise
- Noise in Air-Conditioning Duct Systems
- Noise Limiting Curves
- Noise Prediction for Aerospace Sources
- Noise/sound Propagation
- Shell-And-Tube Heat Exchangers
- Turbo-Fan and Turbo-Jet Engines
- Airframe noise, 90023
- Boundary layer noise, 75021, TM 58
- Buzz-Saw Tones
- far-field, 75020
- supersonic fan in duct, 75020
- Cabin noise, internal noise, 07001
- Coaxial Static Subsonic Jet Far-Field
- database, 11002
- program to interpolate in or extrapolate database, 11002
- Combination of Levels, 17012, 79037
- Combustor noise, combustion noise, 05001
- Conversion to R.M.S. Fluctuating Pressure, 21003
- Definitions of Intensity, Intensity Level, Power Level, Pressure and Pressure Level, 21003, 22001
- Discrete Frequency Far- and Near-Field for Single Propeller With Axial or Non-Axial Inflow (Static or Flight)
- estimation of unsteady lift coefficient for input to prediction program, 96027
- program for estimation from steady or unsteady loading data, 11005
- Discrete Frequency Far-Field for Single Static Propeller/Rotor
- graphical estimation of maximum component of rotational noise, 76020
- Estimation of Attenuation Due to Barriers
- program in Fortran, 79011
- Estimation of sideline noise in subjective noise metrics, 82027 Addendum
- Fan noise, compressor noise, 98008
- Fans
- prediction at maximum efficiency point, 79037
- Far-field jet noise, 11002, 89041, 98019
- Ground reflection effects, 94035
- Jet-by-jet noise shielding, 88023
- Lateral attenuation, 81035, 82027
- Near-field jet noise, 99006
- Noise shielding by barriers, 79011
- Prediction of Airframe Noise Component-by-Component
- program for aeroplanes not propeller powered, 90023
- Propeller noise, 11005, 76020, 96027
- Section properties of fuselage stiffeners, 07001 Addendum
- Shielding Effect of Two Identical Single-Stream Parallel Jets
- program for estimation, 88023
- Single-Stream Static Jet Far-Field, 89041, 98019
- database, 98019
- program to interpolate in or extrapolate database, 98019
- use of data to predict under flight conditions, 87011
- Single-Stream Static Jet Near-Field, 72002, 99006
- databases, 99006
- program for interpolation in or extrapolation of database, 99006
- Sound absorption coefficients of liners, 74003, 74004
- Sound attenuation due to air absorption, 78002, 78003
- Sound attenuation in circular ducts, 00012
- Sound attenuation in rectangular and annular ducts, 00024
- Sound Intensity, 21003
- Sound Power, 21003
- Sound Pressure, 21003
- Sound propagation, 94036
- Sound propagation in the presence of wind and temperature gradients, 89036
- Sound radiation from circular ducts, 01015
- Static-to-flight effects, 87011
- Turbine noise, 12001
- Turbulent Boundary Layer
- surface pressure fluctuations, 75021, TM 58
- Due to Change of Angle of Attack, TD MEMO 6403
- Effect of Camber and Twist Distributions and Deflection of Leading- and/or Trailing-Edge Plain Flaps on
- program for subsonic flow, 95010
- Effect of Camber and Twist Distributions on, 83040
- program for subsonic flow, 95010
- Example of Alleviation by Active Controls, 84020
- Undercarriage
- see also
- Range
- Analysis of Flight Test Data to Determine Guarantees
- as illustration of use of statistical techniques, 91018
- Introduction to Estimation, 73018, 80026
- Piston-Engine Aircraft
- flight conditions for maximum with parabolic drag law, 75018
- practical flight conditions for maximum, 75018
- typical variation with operational parameters, 75018
- Program to Calculate for Any Power Plant
- using known drag and engine characteristics, 00031, 00032, 00033, 00034, 00035, 00036, 00037, 00038, 00039
- Turbo-Fan and Turbo-Jet Aircraft
- flight conditions for maximum, 73019
- flight conditions for maximum with parabolic drag law, 73019
- Turbo-Prop Aircraft
- flight conditions for maximum with parabolic drag law, 75018
- practical flight conditions for maximum, 75018
- typical variation with operational parameters, 75018
- see also
- Endurance (Flight Time)
- Introduction to Estimation, 73018, 80026
- Piston-Engine Aircraft
- flight conditions for maximum with parabolic drag law, 75018
- Program to Calculate for Any Power Plant
- using known drag and engine characteristics, 00031, 00032, 00033, 00034, 00035, 00036, 00037, 00038, 00039
- Turbo-Fan and Turbo-Jet Aircraft
- flight conditions for maximum, 73019
- flight conditions for maximum with parabolic drag law, 73019
- Turbo-Prop Aircraft
- flight conditions for maximum with parabolic drag law, 75018
- See under substance of interest
- see
- Density
- See under substance of interest
- See under substance of interest
- Various Dry Rubbing Bearing Materials
- carbon, polymer, thermoset, solid lubricant impregnated metal, 87007
- General Introduction to Use in Study of Random Processes
-
- see
- Random Processes
- Use in Calculating Response of Buildings and Structures
- Use in Representing Atmospheric Turbulence Properties
- see also
- Power Spectral Density Function
- Analysis of Measurements Made in Level Flight
- piston-engine aircraft, 80009
- turbine helicopters, 74042, 80009
- turbo-fan and turbo-jet aircraft, 70020, 70021, 70022, 80009
- Estimation in Level Flight
-
- see also
- Equations of Motion
- effect of small changes in drag, weight, thrust (or power) on, 86004
- program using known drag, lift and thrust characteristics, 00031, 00032, 00033, 00034, 00035, 00036, 00037, 00038, 00039
- Estimation of Maximum in Level Flight
- program using known drag, lift and thrust characteristics, 00031, 00032, 00033, 00034, 00035, 00036, 00037, 00038, 00039
- Measurement in Flight
- Minimum Drag in Level Flight, 81026
- Minimum Thrust Power in Level Flight, 81026
- Reduction of Measurements Made in Level Flight
- piston-engine aircraft, 80009, PERF RP1/0, PERF RP1/1, PERF RP2/0
- turbo-fan and turbo-jet aircraft, 80009, PERF RJ2/0
- turbo-prop aircraft, 80009, PERF RT1/0, PERF RT1/1
- Sound
- use in temperature measurement, 02006
- Stability During Approach, PERF EG6/2
- Heat Transfer
- see
- Forebody
- Under Differential Temperature Across Thickness
- steady state temperature and stress distributions, 89027
- see also
- Sidespillage
- Axi-Symmetric Cowls at Subsonic Speeds
- prediction of onset for all types (NACA 1-series, conical, elliptical, parabolic, other), 84004
- prediction of onset (NACA 1-series and with larger lip radius), 81024
- variation with geometry and Mach number (NACA 1-series and with larger lip radius), 81024
- variation with geometry, Mach number and incidence for all cowls, 84004
- variation with Mach number and mass flow ratio (NACA 1-series and modified profiles), 94014
- Definition, 81004, 84004, 97016
- Flush Intakes
- NACA convergent-divergent planform, 86002
- rectangular planform, 03006, 86002
- Scoop Intakes Immersed in Boundary Layer
- with or without boundary layer diverter, 86002
- see also
- Downwash
- Flaps
- Interference
- Introduction to Data Items on Effect of High-Lift Devices on Drag, Lift and Pitching Moment, 97002
- Lift Increment Due to Deployment on Aerofoils at Zero Angle of Attack
- alone or with leading-edge high-lift devices, 94026, 94027, 94029
- Lift Increment Due to Deployment on Wings at Zero Angle of Attack
- alone or with leading-edge high-lift devices, 96032, 97002, 97009
- Maximum Lift Increment Due to Deployment on Aerofoils
- alone or with leading-edge high-lift devices, 94026, 94027, 94029
- Maximum Lift Increment Due to Deployment on Wings, 91014
- with leading-edge high-lift devices, 92031
- Normal Force, AERO F.05.01.01
- Pitching Moment Increment Due to Deployment on Aerofoils and Wings
- alone or with leading-edge high-lift devices, 01013, 03017, 98009
- flap chord ratio less than unity, AERO F.08.01.01, AERO F.08.01.02
- Profile Drag Increment Due to Deployment on Wings, 74010, AERO F.02.01.07
- Trailing Vortex Drag Increment Due to Deployment on Cambered and Twisted or Plane Wings
- program for estimation for any flap and wing geometry, 01007
- tabulated values for selected flap and wing geometries, 01007
- Derivation of Part-Span Factors, TM 172
- Discussion of Effect of Spoiler Position on Lift-Curve Slope, 14004
- Drag Increment in Ground Effect Due to Solid
- flaps and slats deployed, 76026
- Example of Calculation of Local Excrescence Contribution to Drag, 93032
- Induced and Profile Drag Increments in Free Air Due to Perforated or Solid
- including contribution to induced drag from flap-spoiler interference, 96026
- Lift Decrement in Free Air Due to Perforated or Solid
- trailing-edge flaps deployed, 14005
- trailing-edge flaps undeployed, 14004
- Lift Decrement in Ground Effect
- flaps and slats deployed, 76026
- Rolling Moment Due to Solid or Perforated
- trailing-edge flaps deployed, 14005
- trailing-edge flaps undeployed, 14004
- Typical Time Delay in Response, 85029
- Use with cavity flow, 08011, 08012, 09001, 09002, 16004
- Yawing Moment Due to Perforated or Solid Used as Roll Control
- including contributions from spoiler-wake-fin and flap-spoiler interferences, 96026
- Prediction of Drag Due to Impingement on Airframe in Take-Off and Landing
-
- see
- Impingement Drag
- Prediction of Sidespray Envelope From Aircraft Tyres
-
- see
- Aircraft Tyres
- see
- Gears
- Various In-Plane Loadings
- stress concentration data, 80027
- Dynamic Response to Turbulence and Wind
- Mean Forces, Moments and Pressures Due to Wind or Other Fluid Flows
- Boundaries
- Derivatives
-
- see
- Derivatives
- During Approach, PERF EG6/2
- Dynamic
- In Intake Flow
-
- see
- Intakes
- In Journal Bearings
-
- see
- Journal Bearings
- Lateral
- Longitudinal
- Rotors
-
- see
- Rotors
- Static
- Structural
-
- see
- Buckling
- Dynamic Response to Turbulence and Wind
- Mean Forces, Moments and Pressures Due to Wind
- Mechanical Vibration Characteristics
-
- see
- Buildings
- see
- Range
- Curves of as Function of Mach Number
- calorically imperfect diatomic gases, AERO S.00.01.10
- perfect air, 69026, 73017, 74028, 82018, AERO 00.03.05
- perfect gases, 74028, AERO S.00.03.06, AERO S.00.03.07
- real air, 73017
- Equations for Estimation From Freestream Conditions
- pressure only, 73017, 82018
- various quantities, 69026, 74028, AERO 00.03.05, AERO S.00.03.06, AERO S.00.03.07
- see also
- Flow Separation
- Maximum Lift
- Considerations in Use of Stall Strips on Wings, 97017
- Limitation on Approach Speed, PERF EG6/2
- Limitation on Take-Off Safety Speed, 85029
- Determination to Specified Confidence for Population From Sample Value
- using Chi-Squared Distribution, 91041
- ENSTAFF for Fighter Aircraft Including Environmental Factors
- moisture management, 97018
- temperature profiles used, 97018
- FALSTAFF for Fighter Aircraft
- characteristics and mission types, 97018
- description of derivation, 97018
- general principles in generation of loading, 97018
- taxiing loading used, 97018
- Felix and Helix for Helicopters
- discussion of sortie types, durations and manoeuvres, 97018
- landing and take-off loads, 97018
- load matrix used, 97018
- rainflow analysis, 97018
- TWIST and miniTWIST for Transport Aircraft
- characteristics, 97018
- description of derivation, 97018
- flight types and number of cycles used, 97018
- Turbo-Jet Engines
- definition, 69006
- Turbo-Jet Engines
- definition, 69006
- Definition, 91041
- Use in Control System Design, 80018
- Introduction to Influence of Flexibility on Static Stability
- constant speed conditions, 96037
- overall structural mode, 96037
- Treatment of Conventional Transport With Flexible Tailplane/Wing Using Orthogonal Modes
- angle of attack in trimmed level flight or a pull-out manoeuvre, 97032
- conditions for aeroelastic static stability, 97032
- deflections and twist of tailplane and wing, 97032
- elevator angle in trimmed level flight or a pull-out manoeuvre, 97032
- elevator trim margin in trimmed level flight or a pull-out manoeuvre, 97032
- equilibrium equations in quasi-steady symmetric manoeuvres, 97032
- Treatment of Flexibility for Conventional Transport With Swept or Unswept Cambered Wing
- consideration of elevator trim divergence speed, 96037
- effect on tailplane and wing load distribution, 96037
- elevator manoeuvre trim margin in steady pull-out, 96037
- elevator trim margin in level flight, 96037
- Treatment of Flexible Conventional Transport Using Normal Modes
- angle of attack in trimmed level flight or a pull-out manoeuvre, 99033
- deformation of fuselage, wing, nacelle assembly and tailplane, 99033
- elevator angle in trimmed level flight or a pull-up manoeuvre, 99033
- equilibrium equations in quasi-steady symmetric manoeuvres, 99033
- see also
- Anemometric Data Correction
- Calculation of Static Pressure Correction Coefficient, 20006, 20007
- In Steady, Spatially Non-Uniform Axial Compressible Flow
- as part of reference set of average flow properties for calorically-perfect gas, 95011
- as part of reference set of average flow properties for thermally-perfect gas, 97029
- Relation With Total Pressure
-
- see
- Total Pressure
- Variation With Altitude
- model atmospheres, 00034, 00036, 68046, 69026, 72018, 77021, 77022, 78008
- program to calculate in non-Standard conditions, 00031, 00032, 00033, 00034, 00035, 00036, 00037, 00038, 00039
- program to calculate in Standard conditions, 00031, 00032, 00033, 00034, 00035, 00036, 00037, 00038, 00039
- see also
- Pitot-Static Probes
- see also
- Ambient Temperature
- Definition, 83041
- Coupling Loss Factors
- equation for connected plates, 15010, 98020, 99009
- prediction for curved or flat plates coupled directly or through a beam, 98020
- Energy Flow Relationships, 15010
- Estimation of Response of Lightweight Structures
- advantages, features and limitations, 97033, 99009
- commercial software, 15010, 99009
- comparison of results for simple structure with those from finite element analysis, 99009
- definition and sources of information on modal density, modal overlap and loss factors, 99009
- ensemble, frequency and spatial averaging, 99009
- experimental determination of parameters from measurements, 99009
- introduction to method, 99009
- procedure for modelling structure by subsystems and considerations in their definition, 99009
- typical applications, 97033, 99009
- use of power input, transmission and dissipation to arrive at power balance equations, 99009
- variance and its importance in evaluating results, 99009
- Modal Density, 11008, 13003, 99009
- see also
- Random Processes
- Regression
- Anderson-Darling Test for Normality (Goodness of Fit), 91041
- Approximate Estimation of Standard Deviation of Output Error From Known System Tolerances, 91017
- Chi-Squared Distribution
- approximate equations for percentiles, 91041
- estimation with specified confidence of population standard deviation from sample value, 91041
- table of percentiles, 91017, 91041
- use as test for Normality (goodness of fit) 00932 (MMDH), 91017, 91019
- Concept of Standard Distributions and Use of Distribution-Free Techniques, 92040
- Estimation of Standard Deviation of Variable From Standard Deviation of its Components, 91017, 91020
- Explanation of Confidence Level and Probability, FMI2
- Extreme-Value Analysis
- Gumbel, 87034
- Lieblein, 87034
- Weibull, 87034
- Fisher's Variance Ratio F Distribution
- approximate equations for percentiles, 91041
- examples of use to establish significance of linear regressions, 92021, 92022
- table of percentiles with 95 per cent confidence, 91017
- table of percentiles with 97.5 per cent confidence, 91041
- use as test for Normality (goodness of fit), 91017, 91018
- use for comparison of standard deviations of two samples, 91017, 91018, 91041, 93023
- Hypothesis Testing, 91017, 92040
- Introduction to Analysis of Engineering Data, 92040
- Log-Normal Distribution
- cumulative distribution function, 21004
- probability density function, 21004
- Measures of Dispersion and Location, 92040
- Non-Central Student's t Distribution
- use in estimation to specified confidence of population coefficient of variation, 91041
- use in estimation to specified confidence of population percentiles, 91041
- Normal or Gaussian Distribution
- approximate equations for percentiles, 91041
- Bartlett's test for homogeneity of several estimates of population variance, 91017
- bivariate distribution, 91017, 96024
- conditional probability distribution, 91017, 96024
- cumulative distribution function, 21004
- estimation from sample of population coefficient of variation to specified confidence, 91041
- estimation to specified confidence of population percentiles from sample mean, 91041
- expression for cumulative distribution function, 91041
- joint probability distribution, 86010, 91017, 96024
- marginal probability distribution, 91017, 96024
- probability density function, 21004
- probability density function, 85020, 92040
- table of statistics for cumulative distribution function and percentiles, 91017, 91041
- use of cumulative distribution function to compare means of samples, 93023
- use of probability grids, 91017, 91019
- Probability Definitions and Relations
- random events, and discrete and continuous random variables, 92040
- Sampling and Effects of Censoring, 92040
- Skewed Distribution, 91017, 92040
- Student's t Distribution
- equations for percentiles, 91041
- estimation to specified confidence of population mean from sample value, 91017, 91041
- table of percentiles, 91017, 91041
- use for comparison of means of two samples, 91017, 91018, 91041
- Techniques of Interval and Point Estimation, and Hypothesis Testing, 92040
- Use in Analysis of Atmospheric Turbulence, 74030, 85020, 86010
- Use in Analysis of Extreme-Wind Speeds, 87034
- Use in Analysis of Two-Phase Flow Pressure Drop Data, FMI2
- Use in Deriving Materials Design Data 00932 (MMDH)
- Use in Determination of Pressure Error Correction, 95024
- Use of Bivariate Distribution in Analysis of Data on Length and Width of US Paved Runways
- conditional, joint and marginal distributions, 96024
- Use to Analyse Aircraft/Ground-Test Machine Braked Experimental Friction Data
- to predict wet stopping distance with chosen probability, 00018, 99015, 99016, 99017
- Weibull Distribution
- confidence bounds, 21004
- cumulative distribution function, 21004
- hazard function, 21004
- probability density function, 21004
- reliability function, 21004
- sources of uncertainty, 21004
- use in fatigue analysis, 21004
- use of probability plots, 21004
- Weibull parameters, 21004
- Weibull weakest-link theory, 21004