Muutke küpsiste eelistusi

Paths Of Soaring Flight, The [Kõva köide]

(Formerly Of Dept Of Aeronautics, Imperial College, Uk)
  • Formaat: Hardback, 148 pages
  • Ilmumisaeg: 30-Mar-1999
  • Kirjastus: Imperial College Press
  • ISBN-10: 1860940552
  • ISBN-13: 9781860940552
Teised raamatud teemal:
Paths Of Soaring Flight, TheSuurem pilt
  • Formaat: Hardback, 148 pages
  • Ilmumisaeg: 30-Mar-1999
  • Kirjastus: Imperial College Press
  • ISBN-10: 1860940552
  • ISBN-13: 9781860940552
Teised raamatud teemal:
Püsilink: https://www.kriso.ee/db/9781860940552.html
Märksõnad:
This book is concerned with the sport of soaring, mainly with the mathematical basis of sailplane design and operation. It does not tell the beginner how to fly, but it will give an experienced pilot some background, with historical notes showing how ideas have evolved and could develop in the future. Some of the material is taken from OSTIV (Organisation Scientifique et Technique Internationale de Vol a Viole) publications and from Technical Soaring, neither of which is readily available to the general public, including papers by the author and others. Extensive references are provided in each chapter.
Foreword vii
Section A: The Sailplane In Still Air 1(32)
Units, and Some Basic Ideas
3(8)
Units, dimensionless coefficients, Reynolds number, Mach number.
True and equivalent speeds.
Boundary layers: laminar and turbulent.
Transition.
Skin friction.
Properties of two-dimensional wing sections.
Effect of flaps.
Wings and Winglets
11(6)
Wings of finite span: downwash and induced drag.
Effects of span loading and aspect ratio, taper and twist.
Non-planer lifting systems.
Three dimensional lift curve slope.
Drag of three dimensional wings.
Winglets.
The Drag of a Sailplane
17(6)
The total drag of a sailpalane.
Simple case of a parabolic drag polar: minimum drag and minimum power.
Actual polars: effects of reynolds number, ballast and altitude.
The Equations of Motion
23(10)
General equations of motion for flight in a vertical plane.
Simplifications.
Results for a parabolic polar.
The dimensionless performance curve.
Best speeds for motor sailplanes.
Performance in turning flight.
Best gliding angle and minimum sink.
Effect of ballast and flaps.
Performance in turning flight.
Ground effect.
Section B: Instruments for soaring flight 33(18)
Instruments for Soaring Flight
35(11)
The measurement of vertical velocity.
The concept of Total Energy.
Methods of compensating variometers: venturis, the Irving tube.
Air mass-movement indicators.
Electric variometers.
Other Instruments
46(5)
Other instruments.
The altimeter and its calibration.
The airspeed indicator: pitot and static sources, pressure errors and their effect on limitations and best speeds to fly; calibration; other errors.
Reduction of neverexceed speed with height to avoid flutter.
Section C: The sailplane in the atmosphere 51(73)
The Sailplane in the Atmosphere
53(12)
Thermals: observations in the laboratory and in the atmosphere.
Mathematical descriptions: power laws: spherical bubbles: general remarks.
Cloud streets.
Waves.
The wind.
The Standard Atmosphere.
Flying in Thermals: the Classical Analysis
65(10)
Flying in thermals.
A little history.
The classical analysis.
Best speeds to fly and the effect of down-draughts.
Average speed attained.
The BGA handicapping system.
Some Ideas on the Practice of Cross-Country Flying
75(8)
The practice of cross-country flying.
The MacCready ring and its calibration.
Tricks with variometers.
Practical considerations and techniques.
Use of flaps.
More Advanced Ideas on Cross-Country Flying
83(8)
More advanced ideas on cross-country flying.
Flight when the load factor is not unity.
Computer calculations of sailplane performance.
Use of water ballast and the effect of flying at the non-optimum weight.
Optimisations in General
91(10)
Generalised optimisation calculations: the Calculus of Variations.
Flight under a cloud street.
A caution.
The Effects of Wind
101(10)
Effect of wind.
Wind components.
Flight between fixed points in a cross-wind.
Triangular flights in the presence of a wind.
The final glide: height to leave the last thermal.
Optimium glide angles.
Use of lee waves.
The Effect of Centre of Gravity Position
111(5)
Effect of CG position on performance.
Loss of energy height at low and high speeds: overall loss of energy height.
A Brief Note on Computers, Flight Data Recorders, GPS, etc
116(8)
Appendices
I. Some Useful General References
118(3)
II. Conversion Factors
121(1)
III. The Standard Atmosphere
122(2)
Symbols 124(5)
Index 129(4)
List of Authors Quoted at the End of Each
Chapter		 133