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Author: Phillip S. Meilinger
Publisher:
ISBN:
Category : Aeronautics, Military
Languages : en
Pages : 76
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Book Description
Author: Phillip S. Meilinger
Publisher:
ISBN:
Category : Aeronautics, Military
Languages : en
Pages : 76
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Book Description
Author: Phillip Meilinger
Publisher: CreateSpace
ISBN: 9781477547571
Category :
Languages : en
Pages : 64
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Book Description
The concept of flight has fascinated man for millennia. The minds of the ancients invented winged gods and goddesses who lived in the heavens or who traversed it in chariots of gold. The restless brilliance of Leonardo da Vinci designed a flying machine five centuries ago; but his vision, as well as those of many who followed, relied on the muscle power of man to make it work. That would not be enough. A mechanical engine would be necessary. Flight would have to be a byproduct of the industrial revolution. In the meantime, man turned to an alternative means of reaching into the sky-balloons. The first balloon ascent occurred in Paris in 1783-the same year the United States gained its independence from Britain, ratified, coincidentally, by a treaty signed in Paris. Over the next century and a half, balloons and their more steerable brethren, dirigibles or rigid airships, were designed and flown in various countries worldwide. But the notion of heavier-than-air flight in a winged vehicle would not go away. Throughout the latter half of the nineteenth century a number of aviation pioneers studied the problem of flight from an increasingly scientific viewpoint. All recognized that two primary problems needed to be overcome-power and directional control. Someone would have to build an engine that was both powerful enough and light enough to lift an airplane and its pilot into the air and sustain it. The internal combustion engine was the obvious solution, but early motors that were made for automobiles and dirigibles were too heavy- they delivered too little horsepower for their weight. Related to this issue was the need for a suitable airscrew, or propeller, to attach to the engine that would propel the craft through the air. The second problem, controlling an airplane in flight, seemed even more difficult. Both of these problems were solved by two hard-working and taciturn bicycle mechanics from Dayton, Ohio. (Their bicycle shop has since been restored and moved to Greenfield Village near Detroit). Orville and Wilbur Wright, sons of a minister, designed and built their own gasoline engine that was not a spectacular device, but adequate for their purpose. It weighed about 200 pounds and delivered 12 horsepower. Just enough. Also important, the brothers designed and built their own propellers. Their solution to the directional control issue was more ingenious. Learning from the flight of birds, the brothers saw that birds made subtle changes in their wingtips, bending them up or down slightly, and this allowed them to turn quickly and gracefully. The Wrights therefore rigged up a series of cables and pulleys that connected the wings of their craft to levers where the aviator would lie (later sit). When manipulating the levers, the pilot would actually twist the shape of the wings themselves-much like a bird alters the shape of its wings-allowing the craft to turn. This "wing warping" method was soon replaced by more practical devices-movable rudders and ailerons. The latter consisted of a separate airfoil usually attached to the outer portion of a wing: but the basic principle the Wrights invented was sound. On Dec. 17, 1903, at Kitty Hawk, North Carolina, the Wright brothers made history's first powered flight in a heavier-than-air machine that incorporated their two scientific breakthroughs. Their invention, the airplane, changed the world. As the centennial of their momentous achievement approaches, the United States Air Force has established the Centennial of Flight Office, whose mission is to celebrate airpower and the Wright brothers' historic event. One of their projects is this pamphlet series, which will trace the most significant people, events, technologies and ideas in the history of the United States Air Force.
Author: United States. Air Force
Publisher:
ISBN:
Category :
Languages : en
Pages : 24
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Author: Phillip S. Meilinger
Publisher:
ISBN:
Category : Aeronautics, Military
Languages : en
Pages : 68
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Book Description
Author: Stephen Lee McFarland
Publisher: Createspace Independent Publishing Platform
ISBN:
Category : History
Languages : en
Pages : 96
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Book Description
Except in a few instances, since World War II no American soldier or sailor has been attacked by enemy air power. Conversely, no enemy soldier orsailor has acted in combat without being attacked or at least threatened by American air power. Aviators have brought the air weapon to bear against enemies while denying them the same prerogative. This is the legacy of the U.S. AirForce, purchased at great cost in both human and material resources.More often than not, aerial pioneers had to fight technological ignorance, bureaucratic opposition, public apathy, and disagreement over purpose.Every step in the evolution of air power led into new and untrodden territory, driven by humanitarian impulses; by the search for higher, faster, and farther flight; or by the conviction that the air way was the best way. Warriors have always coveted the high ground. If technology permitted them to reach it, men, women andan air force held and exploited it-from Thomas Selfridge, first among so many who gave that "last full measure of devotion"; to Women's Airforce Service Pilot Ann Baumgartner, who broke social barriers to become the first Americanwoman to pilot a jet; to Benjamin Davis, who broke racial barriers to become the first African American to command a flying group; to Chuck Yeager, a one-time non-commissioned flight officer who was the first to exceed the speed of sound; to John Levitow, who earned the Medal of Honor by throwing himself over a live flare to save his gunship crew; to John Warden, who began a revolution in air power thought and strategy that was put to spectacular use in the Gulf War.Industrialization has brought total war and air power has brought the means to overfly an enemy's defenses and attack its sources of power directly. Americans have perceived air power from the start as a more efficient means of waging war and as a symbol of the nation's commitment to technology to master challenges, minimize casualties, and defeat adversaries.
Author: A. Timothy Warnock
Publisher:
ISBN: 9780160504112
Category : History
Languages : en
Pages : 308
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Book Description
Author: Air Corps. War Department
Publisher:
ISBN:
Category :
Languages : en
Pages : 626
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Book Description
Author: Robert Van Der Linden
Publisher: Zenith Press
ISBN: 0760350272
Category : History
Languages : en
Pages : 217
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Book Description
"[This book] celebrates aviation's most significant achievements through the stories behind twenty-nine legendary aircraft housed at the NASM."--Jacket.
Author: John C. Fredriksen
Publisher: Bloomsbury Publishing USA
ISBN:
Category : History
Languages : en
Pages : 506
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Book Description
Understand the growth and evolution of American air power with this overview of the history of the world's most successful aviation force. The United States Air Force: A Chronology captures the sweep of U.S. Air Force history from the service's inception to present times. Concise entries, arranged by date, touch upon military events such as victories and defeats; significant political, administrative, and technological changes affecting the service; and significant events in the careers of noted leaders. Daily occurrences are described within the context of greater historical events such as wars. The chronology covers all aspects of the U.S. Air Force and its historical antecedents (U.S. Air Service, Army Air Corps, and Army Air Force), commencing with the Balloon Corps in the American Civil War and extending through Operation IRAQI FREEDOM and Operation ENDURING FREEDOM in Afghanistan. Events of note, major and minor, are listed in the order of occurrence. The book includes all major air campaigns in all major conflicts, as well as such noteworthy events as record-breaking flights and the introduction of new aircraft.
Author: Air University (U.S.). United States Air Force Historical Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 142
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Book Description
