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Flying Machines: Construction and Operation: A Practical Book Which Shows, in Illustrations, Working Plans and Text, How to Build and Navigate the Modern Airship.

  
[title page]
  
PREFACE.
  
IN MEMORIAM.
  
CONTENTS

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EVOLUTION OF TWO-SURFACE FLYING MACHINE. By Octave Chanute.
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CHAPTER II. THEORY, DEVELOPMENT, AND USE.
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CHAPTER III. MECHANICAL BIRD ACTION.
  
[section]
  
Another Simple Illustration.
  
Principle In General Use.
  
Getting Under Headway.
  
Puzzle in Bird Soaring.
  
Modeled Closely After Birds.
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CHAPTER IV. VARIOUS FORMS OF FLYING MACHINES.
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CHAPTER V. CONSTRUCTING A GLIDING MACHINE.
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CHAPTER VI. LEARNING TO FLY.
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CHAPTER VII. PUTTING ON THE RUDDER.
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CHAPTER VIII. THE REAL FLYING MACHINE.
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CHAPTER IX. SELECTION OF THE MOTOR.
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CHAPTER X. PROPER DIMENSIONS OF MACHINES.
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CHAPTER XI. PLANE AND RUDDER CONTROL.
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CHAPTER XII. HOW TO USE THE MACHINE.
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CHAPTER XIII. PECULIARITIES OF AIRSHIP POWER.
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CHAPTER XIV. ABOUT WIND CURRENTS, ETC.
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CHAPTER XV. THE ELEMENT OF DANGER.
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CHAPTER XVI. RADICAL CHANGES BEING MADE.
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CHAPTER XVII. SOME OF THE NEW DESIGNS.
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CHAPTER XVIII. DEMAND FOR FLYING MACHINES.
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CHAPTER XIX. LAW OF THE AIRSHIP.
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CHAPTER XX. SOARING FLIGHT. By Octave Chanute.
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CHAPTER XXI. FLYING MACHINES VS. BALLOONS.
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CHAPTER XXII. PROBLEMS OF AERIAL FLIGHT.
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CHAPTER XXIII. AMATEURS MAY USE WRIGHT PATENTS.
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CHAPTER XXIV. HINTS ON PROPELLER CONSTRUCTION.
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CHAPTER XXV. NEW MOTORS AND DEVICES.
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CHAPTER XXVI. MONOPLANES, TRIPLANES, MULTIPLANES.
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CHAPTER XXVII. 1911 AEROPLANE RECORDS.
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CHAPTER XXVIII. GLOSSARY OF AERONAUTICAL TERMS.

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previous sectionCHAPTER III. MECHANICAL BIRD ACTION. Flying Machines: Construction and Operation: A Practical Book Which Shows, in Illustrations, Working Plans and Text, How to Build and Navigate the Modern Airship.
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Another Simple Illustration.

Another simple means of illustrating the principle of flying machine operation, so far as sustentation and the elevation and depression of the planes is concerned, is explained in the accompanying diagram.

A is a piece of cardboard about 2 by 3 inches in size. B is a piece of paper of the same size pasted to one edge of A. If you bend the paper to a curve, with convex side up and blow across it as shown in Figure C, the paper will rise instead of being depressed. The dotted lines show that the air is passing over the top of the curved paper and yet, no matter how hard you may

illustration

Principle Upon Which Aeroplane Works.

[Description: Black and white illustration: Top: piece of paper attached to piece of cardboard. Middle: person blowing air onto paper with convex side up. Bottom: same, but with concave side up.]
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blow, the effect will be to elevate the paper, despite the fact that the air is passing over, instead of under the curved surface.

In Figure D we have an opposite effect. Here the paper is in a curve exactly the reverse of that shown in Figure C, bringing the concave side up. Now if you will again blow across the surface of the card the action of the paper will be downward—it will be impossible to make it rise. The harder you blow the greater will be the downward movement.

previous sectionCHAPTER III. MECHANICAL BIRD ACTION. Flying Machines: Construction and Operation: A Practical Book Which Shows, in Illustrations, Working Plans and Text, How to Build and Navigate the Modern Airship.
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