An Hour of Aviation |
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7 pages matching air mail in this book
Page 153
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Contents
MAKING USE OF THE ATMOSPHERE | 9 |
AERIAL NAVIGATION | 14 |
THE MEDIUM IN WHICH FLIGHT IS ACHIEVED | 36 |
Copyright | |
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aerial navigation aero aerodromes aeroplane ailerons air lines air mail air routes air-cooled aircraft constructing airscrew airship altimeter amphibion angle Autogyro aviation balloon barrel roll biplane bird flight bombers circle climb cloud commercial air transport companies compass control stick coöperation craft direction distance drag duralumin earth's surface elevator enable engine Europe fall feet flies flight floatplane floats flown flying flying-boat force forward gliding gnomonic projection ground helicopter high speed hull J. B. PRIESTLEY land landplane latitude lift loads loop machine magnetic poles manœuvre maps maximum ment metal miles military monoplane motor nations naval normal NORMAN MACMILLAN nose operation ornithopter pilot plane position produced rain rhumb line Richard Byrd rotating rudder seaplane ships slow roll south magnetic pole spin straight tail tion to-day turn upward vertical water-cooled weight wheels wind wing wireless