Muutke küpsiste eelistusi

Model Planes: Aerofoils and Wings [Pehme köide]

  • Formaat: Paperback / softback, 208 pages, kõrgus x laius x paksus: 270x210x150 mm, kaal: 790 g, 20 Charts; 384 Line drawings, black and white; 48 Halftones, color
  • Ilmumisaeg: 01-May-2015
  • Kirjastus: The Crowood Press Ltd
  • ISBN-10: 0719815401
  • ISBN-13: 9780719815409
Teised raamatud teemal:
  • Formaat: Paperback / softback, 208 pages, kõrgus x laius x paksus: 270x210x150 mm, kaal: 790 g, 20 Charts; 384 Line drawings, black and white; 48 Halftones, color
  • Ilmumisaeg: 01-May-2015
  • Kirjastus: The Crowood Press Ltd
  • ISBN-10: 0719815401
  • ISBN-13: 9780719815409
Teised raamatud teemal:
Model flying is a challenging and exciting hobby as well as a recognized international sport. The broad principles of flight as applied in full-size aviation are just as important to flying models, but these principles are not always recognized or understood fully by aeromodellers. Written specifically with aeromodellers in mind, Model Planes: Aerofoils and Wings is a practical guide to the aerodynamic principles of the 'aerofoil' and the way that wings produce lift, which is vital to establishing flight. Included are over forty ready-to-use aerofoil sections in a range of typical sizes, together with a detailed method of plotting these sections on a home computer, using Excel or a similar software. A comprehensive glossary provides clear explanations of the modelling terminology used, and diagrams illustrate key principles and themes. Written by a distinguished aerospace engineer with a passion for modelling, this comprehensive volume is perfect for the enthusiastic aeromodeller, whether starting out or looking to hone their craft.

Arvustused

Well written and accessible to readers if varied aerodynamic backgrounds...This book is aimed at modellers and written by a modeller and is thoroughly recommended for anyone wanting to better understand why a designer has chosen a particular section, or if they wish to go on and adapt or design their own model. -- Reviewer, Aeromodeller * Aeromodeller magazine * Martyn's book is well illustrated throughout, with a large number of clearly annotated drawings and well-produced photographs. It is highly recommended for a wide range of modellers, from those who just want an easy to read understanding of the basic principles of aerofoils, as well as more academic readers who will eagerly absorb the book's wealth of technical information and who will want to work through the mathematical equations and formulas provided. -- Reviewer, RC Modelworld * RC Modelworld magazine *

List of Figures, Plots and Tables
8(4)
List of Photographs
10(2)
Acknowledgements 12(1)
PART I Behaviour and Performance
13(74)
1 Background
15(4)
2 The Atmosphere
17
3 The Generation of Lift
19(3)
3.1 Basic definitions and principles
19(1)
3.2 Visualizing the airflow
19(1)
3.3 Bernoulli's principle
20(2)
4 Reynolds Number and Skin-Friction Drag
22(2)
5 Boundary Layer Behaviour and Stalling
24(4)
5.1 Boundary layer features
24(1)
5.2 Stalling
25(3)
6 Aerofoil Lift and Drag Characteristics
28(3)
7 Wing Surface Treatment
31(10)
7.1 Surface roughness
32(1)
7.2 Turbulators and invigorators
32(6)
7.3 Additional drag sources
38(3)
8 Choice of Aerofoil Sections
41(5)
8.1 Free-flight models
41(2)
8.2 Radio-controlled models
43(2)
8.3 Control-line models
45(1)
9 Wing Behaviour
46(9)
9.1 Vortex flow around a wing
46(1)
9.2 Induced drag
47(1)
9.3 Aspect ratio
48(1)
9.4 Plan-form shape
49(4)
9.5 Wing tip shaping
53(2)
10 Gliding Performance
55(6)
10.1 An exchange of energy
55(1)
10.2 Optimum aspect ratio
56(1)
10.3 Penetration
57(1)
10.4 Free-flight gliding
58(3)
11 Aerodynamic Controls
61(4)
12 Plotting Aerofoils and Using Excel as a Drafting Tool
65(22)
12.1 Basic geometry
65(3)
12.2 Scaling and plotting families of aerofoils
68(4)
12.3 Plotting in portrait page format
72(1)
12.4 Adding structural details for the ribs
72(1)
12.5 Blending aerofoils
73(14)
PART II Aerofoil Sheets
87(98)
Landscape sheets
89(46)
Portrait sheets
135(50)
Appendix A Identifying aerofoil sheets 185(3)
Appendix B Using Excel spreadsheets 188(2)
Appendix C Aerofoil co-ordinates 190(6)
Appendix D Useful websites 196(1)
Glossary 197(5)
Bibliography 202(2)
Picture credits 204(1)
Index 205
Martyn Pressnell has been an aircraft enthusiast since childhood, becoming an experienced model designer by the age of eighteen.On graduation, he joined Handley Page to train as a professional airframe structures engineer. He went on to work at what is now the University of Hertfordshire, becoming Group Head, Aerospace Engineering, in 1992. For a time he was a CAA-designated Chief Stress Engineer in the airship business. Now retired, Martyn is as busy as ever pursuing model aircraft technology and acting as a consultant in airframe structures to the Engineering Sciences Data Unit, providing information to the aerospace industry worldwide.