CONTENTS

PAGE
THE DELIGHTS AND DANGERS OF FLYING.— Dangers of Aviation.—What it is Like to Fly[1]
SOARING FLIGHT BY MAN.— What Holds it Up? — Lifting Power.—Why so Many Sails?—Steering[17]
TURNING CORNERS.—What Happens when Making a Turn.—Lateral Stability.— Wing Warping.—Automatic Control.—The Gyroscope.—Wind Gusts[33]
AIR AND THE WIND.—Sailing Balloons.—Field and Speed[43]
GAS AND BALLAST.—Buoyancy in Air.—Ascending and Descending.—The Ballonet.—The Equilibrator[57]
DIRIGIBLE BALLOONS AND OTHER KINDS.— Shapes.—Dimensions.—Fabrics.—Framing.— Keeping the Keel Horizontal.—Stability.—Rudders and Planes.— Arrangement and Accessories.—Amateur Dirigibles.— The Fort Omaha Plant.—Balloon Progress[71]
THE QUESTION OF POWER.— Resistance of Aeroplanes.—Resistance of Dirigibles.— Independent Speed and Time-Table.—The Cost of Speed.—The Propeller[101]
GETTING UP AND DOWN; MODELS AND GLIDERS; AEROPLANE DETAILS.—Launching.—Descending.—Gliders.— Models.—Balancing.—Weights.—Miscellaneous.—Things to Look After[121]
SOME AEROPLANES.—SOME ACCOMPLISHMENTS[143]
THE POSSIBILITIES IN AVIATION.— The Case of the Dirigible.—The Orthopter.— The Helicopter.—Composite Types.—What is Promised[170]
AERIAL WARFARE[189]

[Pg xii]