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THE PRESENT STATE OF THE FLYING ART
How AN AEROPLANE KEEPS ITS POSE
FLYING IN GUSTY WEATHER
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aeroplane aircraft arranged aviator Avro ballonets biplane bird bird's body British buoyancy carry centre of gravity centre of pressure CHAPTER coal gas constructed craft cylinders direction dive downward driving elevator engine envelope fact Farman flapping floats flying machine framework front gas-bags give Glider Gnome gust gyroscope hand horizontal plane horse-power hydro-aeroplane interesting keep kite level position lever lifting effect light machine tips machine upward makers miles per hour momentum monoplane motor natural Parseval petrol pilot possible pressure shifts propeller pull purpose rear relative movement rudder self-righting shape ship showing main features side simply Sir George Cayley Sketch showing main soaring spherical balloon steer upwards steerable balloon surface swallow tail plane tendency tends thing throw the air tilt turn the machine upper main plane upward pressure vertical Vickers wards weight wheels wind wings wires