ESDU AZ Index: DIHDZ
 Full Span
 contribution to rolling moment due to rolling, 85006
 contribution to rolling moment due to sideslip, 00025, AERO A.06.01.03
 contribution to rolling moment due to yawing, 72021
 contribution to yawing moment and sideforce due to rolling, 85006
 Part Span
 contribution to rolling moment due to sideslip, 00025, AERO A.06.01.09
 see also
 Dynamical Similarity
 Demonstration of Technique, 73026
 see also
 Heat Pipes
 Density
 pressure and temperature variation for saturated gas and liquid, 80017
 Dynamic Viscosity
 pressure and temperature variation for saturated gas and liquid, 80017
 temperature variation in liquid state, 66024
 Kinematic Viscosity
 temperature variation in liquid state, 66024
 Specific Heat Capacity
 pressure and temperature variation for saturated liquid, 80017
 Specific Latent Heat of Vaporisation
 pressure and temperature variation at saturation, 80017
 Surface Tension
 pressure and temperature variation at saturation, 80017
 Thermal Conductivity
 pressure and temperature variation for saturated liquid, 80017
 Vapour Pressure
 pressure and temperature variation at saturation, 80017
 Definitions in Aircraft Dynamics, 67037
 see
 Spoilers
 Compressible Flow Through Orifices
 cylindrical tube or plate, 82009
 Compressible Flow Through Perforated Plates, 82009
 Steady, Spatially NonUniform Axial Compressible Flow Using ThermodynamicallyRigorous Approach
 definition for caloricallyperfect gas, 95011
 definition for thermallyperfect gas, 97029
 Fatigue Strength of Steel
 effect of initial load, 80004
 effect of presetting, 80004
 location of failure, 80004
 Single Spring With Load Acting on Faces or Inside Edges
 loaddeflection characteristics, 78043
 maximum stress, 78043
 resilience, 78043
 stiffness, 78043
 stress at any perimeter, 78043
 typical stress distribution across washer, 78043
 Stacks (Irregular, Nested or Regular)
 effect of friction and methods of minimising, 79010
 loaddeflection characteristics, 79010
 stiffness, 79010
 see
 Disc Springs
 Pressure Drop Across, 66030
 see also
 Water
 see
 Statistics
 Pressure Under Tyre Footprint on Wet Surface, TM 211
 Change in Observed Frequency of Noise Due to Aircraft Velocity, 02020
 see also
 Slotted Flaps
 Contribution to Airframe Noise, 90023
 see also
 Heat Exchangers
 see
 Slotted Flaps
 Aerofoils
 aerodynamic centre, lift, liftcurve slope, pitching moment and wave drag, AERO W.S.00.03.04
 Dynamic Response to Turbulence and Wind
 Mean Forces and Moments Due to Wind or Other Fluid Flows
 Wings
 wave drag, 71018, 75004
 Average Angle at Tailplane in Attached Flow in Free Air With Flaps Deployed
 effect of compressibility, 97021
 effects of flap, tail and wing geometry, 97021
 increment due to flap deflection, 97021
 Average Angle at Tailplane in Attached Flow in Free Air With Flaps Undeployed
 effect of compressibility, 80020
 effect of nacelles, 80020
 effects of tail and wing geometry, 80020
 values at zero lift, 80020
 Example of Procedure in Calculation of Effects of Propeller Slipstream on Horizontal Tailplane Flowfield, TM 193
 Increment in Angle Due to Ground Effect, 72023
 Induced Angle of Attack Due to (Section 4.7), 73012
 Mean angle of downwash at tailplane, change of downwash at tailplane, 15001, TM 190
 Windtunnel measurement of average downwash angle at the tailplane (Section 7.1.2), 97021
 see also
 Base Drag (without Blowing or Jet Efflux)
 Base Drag with Central Propulsive Jet
 Boundary Layer Lift Dependent Drag
 Cavities
 Excrescences
 Impingement Drag
 Inoperative Engine
 Interference Wave Drag
 Intrinsic Momentum Drag
 LeadingEdge Suction
 Leaks
 Lift Dependent Drag
 Longitudinal Force
 Magnification of Excrescence Drag By Pressure Gradient
 OneDimensional Flow
 Optimum Wave Drag
 PreEntry Drag
 Pressure Drag
 Profile Drag
 Skin Friction Drag
 Spillage Drag
 Standard Momentum Drag
 Trailing Vortex Drag
 Wave Drag
 Windmilling Engines
 Windmilling Propellers
 Aerofoil Design for Minimum (Multivariable Gradient Search Using CFD Codes)
 example optimising camber line shape and highlift device deflections, 99021
 example optimising camber line shape or highlift device deflections, 99020
 example optimising highlift device deflections on combat aircraft section, 00022, 00023
 example optimising surface shape and highlift device deflections, 01024
 introduction to method, 99019
 Aerofoils
 bibliography of data at high subsonic speeds TD Memo. 6407 (Catalogue 1)
 calculation using viscouscoupled method near separation at transonic speeds, 92008
 comparison of results from VGK with results from other theories and experiment, 96028
 comparisons against RAE 5225 aerofoil for program in 2D mode, 13013
 design of GUNACAseries for low drag over a range of lift coefficient, 99003
 effect of leading or trailingedge sealed control or flap deflection, 96028, 96029
 estimation at supersonic speeds, AERO W.S.00.03.03, AERO W.S.00.03.05
 estimation in viscous subsonic or transonic flow using VGK, 96028, 96029
 estimation of minimum for cambered or uncambered with fixed transition, 00027
 geometric and inviscid flow characteristics of some NACA 6series designed for low drag, 99003
 program to predict minimum for subcritical speeds, 06020
 Aircraft
 conditions for minimum, 81026
 discussion of factors affecting, 81026
 increment due to ground effect, 72023
 representation by simple law for performance calculations, 81026
 trim due to inoperative engine or other asymmetry, 88006
 variation with Mach number and lift for typical aircraft, 81026
 Aircraft Tyres Running in Slush or Water

 see also
 Skin Friction Drag
 aircraft tests on watercovered runways, TM 165, TM 192
 fluid drag force under tyre footprint, TM 211
 multiple tyre undercarriage, 11004
 single tyre, 05011, 10015
 Braking Parachutes, 85029
 Compatibility of Definition With Thrust Definition
 propellerpowered aircraft, 85015, 85017
 turbofan and turbojet powered aircraft, 69006, 81024, 84004
 Concept and Preliminary Design Examples of Applying Rapid Aerodynamic Analysis Tools to Three Classic Historical Configurations Designed to Similar Requirements, TM 207
 Conical or Blunted Conical Forebodies in Supersonic Flow
 foredrag, 68021
 Cowls
 estimation at subsonic speeds, 81024
 Estimation by Consideration of Component Contributions
 choice and use of datum conditions, 97016
 examples of possible component break downs, 97016
 longitudinal trim drag and choice of datum, 97016
 profile drag and contributions to it, 97016
 propulsion system contributions, 97016
 sources of data in ESDU Data Items, 97016
 trailing vortex drag, 97016
 various methodologies, 97016
 wave drag, 97016
 Estimation of Effect of Small Changes on Level Speed, 86004
 Estimation of Effect of Small Changes on Rate Of Climb, 94039
 Flaps
 Flush Intakes
 NACA convergentdivergent planform, 86002
 rectangular planform, 03006, 86002
 Introduction to Data Items on Effect of HighLift Devices on, 97002
 Propeller Slipstream Effects on
 check list of contributory components, 85017
 discussion of applicability of method for predicting increment on body, 86017
 discussion of buoyancy and local velocity increments, 85015, 85017
 estimation of increment on body with pusher or tractor propeller, 86017
 Scoop Intakes Immersed in Boundary Layer
 with or without boundary layer diverter, 86002
 Similarity Laws at Subsonic or Supersonic Speeds
 applied to coefficient in axisymmetric flow, 97025
 Similarity Laws at Subsonic, Supersonic or Transonic Speeds
 applied to coefficient in two or threedimensional flow, 97025
 Slender Wings
 increment due to ground effect, 71007
 Spoiler (Perforated or Solid) Deflected at Low Speed in Free Air
 estimation of induced and profile contributions, 96026
 Spoiler (Solid) Deflected at Low Speed in Ground Effect
 estimation of increment due to, 76026
 Thrustdrag Accounting From Flight Test Data, 16003
 Two Staggered Lifting Surfaces Trimmed With Given Static Margin
 program for calculation, 81023
 Vane Vortex Generators to Control ShockInduced Separation
 consideration of contribution with worked example for corotating, 93024
 Viscous Fullpotential (VFP) Method for Three Dimensional Wings and Wingbody Combinations
 estimation of excrescence drag at subsonic speeds and analysis program, 23013
 Wings
 calculation of contributions of typical excrescences (and fit/sealing) on transport aircraft, 93032
 increment due to underwing efflux interference, 82034
 M151 forwardswept wing, 13013
 relative importance of typical excrescences (and fit/sealing) on transport aircraft, 93032
 use of simple sweep rules in drag estimation, 97016
 use of strip theory in drag estimation, 97016
 validation against RAE Model W4, 13013
 validation of sectional drag against sweptpanel model, 13013
 Supercritical TD Memo. 6407
 see also
 DragRise Mach Number
 Aerofoils
 discussion of origins, 90008
 Transonic
 rectangular wings, AERO W.S.02.03.09
 zero lift, AERO A.02.03.02, AERO A.S.02.03.01
 Aerofoils
 method of estimation TD Memo. 6407
 Aerofoils Designed for Given Values, 71020
 influence of design parameters, 71020
 Aerofoils With RoofTop Pressure Distribution
 adaptation of charts to threedimensions, 72027
 charts and design principles, 71019
 Aerofoils With Supercritical Pressure Distribution, 78010
 Bumpy or Smooth Bodies of Revolution With or Without Fins
 method of estimation, 74013
 Cowls
 estimation, 81024
 Advantages and Limitations of Various Materials
 carbon, polymer, thermoset, solid lubricant impregnated metal, 87007
 Choice of Proportions, 87007
 Comparison of Load/Speed Performance With That of Alternative Bearing Types, 87007
 Database of Materials Properties, 96015
 use of alternative databases in materials selection program, 96015
 Dynamic Friction Coefficient for Various Materials, 87007
 sketches of typical behaviour with load and speed, 89044
 Effect of Intermittent Operation on Material Choice, 87007
 Estimation of Bearing Life and Wear Rate for Various Materials, 87007, 96015
 Estimation of BeddingIn Wear, 87007
 Estimation of Clearance Necessary
 effect of temperature and water absorption, 87007
 Estimation of Rubbing Surface Temperature, 87007
 Installation, 87007
 Materials Manufacturers and Relative Materials Costs, 87007
 Materials Properties
 carbon, polymer, thermoset, solid lubricant impregnated metal, 87007
 Mating Materials and Requirements for Their Surface Finish, 87007
 Maximum Rubbing Speed and Temperature Capability for Various Materials, 87007
 Permissible Pressure/Temperature Performance of Various Materials, 87007
 Program for Material Selection or Performance Analysis of Known Material, 96015
 Resistance to Specific Environments of Various Materials
 acid, alkali, oil, radiation, vacuum, water, 87007
 Selection Procedure for Best Material in Given Application, 96015
 carbon, polymer, thermoset, solid lubricant impregnated metal, 87007
 Thermal Conductivity of Various Materials, 87007
 Shear Centre, STRUCT 00.06.05
 Wave Drag

 see
 Cowls
 Failure Prediction in Loaded Contacts, 84017, 85007
 Yielding Criteria
 threedimensional stress systems, 73004
 twodimensional stress systems, 73004, STRUCT 02.00.00
 Flow in
 Linings to Reduce Noise
 Sound Radiation From Open End
 Fatigue Crack Propagation Rate

 see also
 Crack Propagation
 characteristic slopes of plots against stress intensity factor, 84003
 effect of alloy composition, 84003
 effect of heat treatment, 84003
 effect of mean stress (or stress ratio), 84003
 Approximate Solution, 83024
 comparison with full solution for particular aircraft, 83024
 Discussion of Desirable Characteristics
 for good aircraft handling qualities, 92006
 Discussion of Origin and Characteristics, 86021
 Effect of Control Augmentation, 83024
 Effect of Idealised Yaw Damper, 83024
 Requirements for Minimum Values of Damping and Frequency
 for military aircraft handling, according to aircraft class and flight phase, 92006
 Effect of Elasticity on Acceleration Due to Gusts
 simple treatment, 69023
 Definition, AERO S.00.03.06
 see
 Aerodynamic Loading
 Ailerons
 Attitude Angles
 Axes Systems in Aircraft Dynamics and Performance
 Control Systems
 Direction Angles
 Dutch Roll
 Dynamic Stability
 Equations of Motion
 Handling Qualities
 Incidence Angles
 Lateral Stability and Response
 Linear Systems
 Longitudinal Stability and Response
 NonLinear Systems
 Notation
 Parameter Identification
 Rolling
 Rudder
 SampledData Systems
 Static Aeroelasticity
 Conversion Factors, 68036, 81002, CF2, FMI1
 Liquids
 effect of pressure and temperature on, 68036
 general discussion, 68036
 Typical Values for Mineral Oils, 71003, 85027, 89045, 94017, 94020
 Typical Values for Petroleum Products, 71003
 effect of pressure, 71003
 Typical Values for Synthetic Lubricants, 85027, 89045, 94020
 Typical Values of Pressure Exponent for Mineral and Synthetic Lubricants, 85027, 89045, 94020