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The Dream Machine

Author: Richard Whittle
Publisher: Simon and Schuster
ISBN: 1416563199
Size: 52.96 MB
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WHEN THE MARINES decided to buy a helicopter-airplane hybrid “tiltrotor” called the V-22 Osprey, they saw it as their dream machine. The tiltrotor was the aviation equivalent of finding the Northwest Passage: an aircraft able to take off, land, and hover with the agility of a helicopter yet fly as fast and as far as an airplane. Many predicted it would reshape civilian aviation. The Marines saw it as key to their very survival. By 2000, the Osprey was nine years late and billions over budget, bedeviled by technological hurdles, business rivalries, and an epic political battle over whether to build it at all. Opponents called it one of the worst boondoggles in Pentagon history. The Marines were eager to put it into service anyway. Then two crashes killed twenty- three Marines. They still refused to abandon the Osprey, even after the Corps’ own proud reputation was tarnished by a national scandal over accusations that a commander had ordered subordinates to lie about the aircraft’s problems. Based on in-depth research and hundreds of interviews, The Dream Machine recounts the Marines’ quarter-century struggle to get the Osprey into combat. Whittle takes the reader from the halls of the Pentagon and Congress to the war zone of Iraq, from the engineer’s drafting table to the cockpits of the civilian and Marine pilots who risked their lives flying the Osprey—and sometimes lost them. He reveals the methods, motives, and obsessions of those who designed, sold, bought, flew, and fought for the tiltrotor. These stories, including never before published eyewitness accounts of the crashes that made the Osprey notorious, not only chronicle an extraordinary chapter in Marine Corps history, but also provide a fascinating look at a machine that could still revolutionize air travel.

Grundlagen Der Hubschrauber Aerodynamik

Author: Berend G. van der Wall
Publisher: Springer-Verlag
ISBN: 3662444003
Size: 57.69 MB
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Am Anfang dieses umfangreichen und modernen Nachschlagewerkes steht die geschichtliche Entwicklung der Drehflügler von der Antike bis zur Gegenwart. Die Strahl- und Blattelemententheorie sowie deren Anwendung im Schwebe-, Vertikal-, Vorwärts- und Autorotationsflug stellen den Schwerpunkt dar. Die Grundlagen der Rotorblattdynamik, der Leistungsrechnung sowie des Hubschrauberentwurfes werden erläutert. Zahlreiche Übungsaufgaben mit Lösungen runden das reich bebilderte und mit vielen Graphiken versehene Werk ab. Auf anschauliche Darstellung der physikalischen Zusammenhänge wurde besonderer Wert gelegt und die Kernaussagen am Ende jeden Kapitels zusammengefasst.

Helicopter Flight Dynamics

Author: Gareth D. Padfield
Publisher: Wiley
ISBN: 1119401054
Size: 44.14 MB
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The Book The behaviour of helicopters and tiltrotor aircraft is so complex that understanding the physical mechanisms at work in trim, stability and response, and thus the prediction of Flying Qualities, requires a framework of analytical and numerical modelling and simulation. Good Flying Qualities are vital for ensuring that mission performance is achievable with safety and, in the first and second editions of Helicopter Flight Dynamics, a comprehensive treatment of design criteria was presented, relating to both normal and degraded Flying Qualities. Fully embracing the consequences of Degraded Flying Qualities during the design phase will contribute positively to safety. In this third edition, two new Chapters are included. Chapter 9 takes the reader on a journey from the origins of the story of Flying Qualities, tracing key contributions to the developing maturity and to the current position. Chapter 10 provides a comprehensive treatment of the Flight Dynamics of tiltrotor aircraft; informed by research activities and the limited data on operational aircraft. Many of the unique behavioural characteristics of tiltrotors are revealed for the first time in this book. The accurate prediction and assessment of Flying Qualities draws on the modelling and simulation discipline on the one hand and testing practice on the other. Checking predictions in flight requires clearly defined mission tasks, derived from realistic performance requirements. High fidelity simulations also form the basis for the design of stability and control augmentation systems, essential for conferring Level 1 Flying Qualities. The integrated description of flight dynamic modelling, simulation and flying qualities of rotorcraft forms the subject of this book, which will be of interest to engineers practising and honing their skills in research laboratories, academia and manufacturing industries, test pilots and flight test engineers, and as a reference for graduate and postgraduate students in aerospace engineering.

The American Warfare State

Author: Rebecca U. Thorpe
Publisher: University of Chicago Press
ISBN: 022612410X
Size: 49.91 MB
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How is it that the United States—a country founded on a distrust of standing armies and strong centralized power—came to have the most powerful military in history? Long after World War II and the end of the Cold War, in times of rising national debt and reduced need for high levels of military readiness, why does Congress still continue to support massive defense budgets? In The American Warfare State, Rebecca U. Thorpe argues that there are profound relationships among the size and persistence of the American military complex, the growth in presidential power to launch military actions, and the decline of congressional willingness to check this power. The public costs of military mobilization and war, including the need for conscription and higher tax rates, served as political constraints on warfare for most of American history. But the vast defense industry that emerged from World War II also created new political interests that the framers of the Constitution did not anticipate. Many rural and semirural areas became economically reliant on defense-sector jobs and capital, which gave the legislators representing them powerful incentives to press for ongoing defense spending regardless of national security circumstances or goals. At the same time, the costs of war are now borne overwhelmingly by a minority of soldiers who volunteer to fight, future generations of taxpayers, and foreign populations in whose lands wars often take place. Drawing on an impressive cache of data, Thorpe reveals how this new incentive structure has profoundly reshaped the balance of wartime powers between Congress and the president, resulting in a defense industry perennially poised for war and an executive branch that enjoys unprecedented discretion to take military action.

Against All Enemies

Author: Richard A. Clarke
Publisher: Hoffmann und Campe
ISBN: 3455850790
Size: 73.21 MB
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"Fast 500.000 verkaufte Exemplare in drei Tagen - die Enthüllung von Bushs ehemaligem Terrorberater Richard Clarke schlägt alle Rekorde" (SPIEGEL ONLINE) Binnen weniger Tage wurde "Against All Enemies" zu einem hochbrisanten Politikum, über das die Medien weltweit berichteten. Was macht die Schlagkraft dieses Buches aus? "Die Bush-Administration hat die Gelegenheit verpasst, Al Qaida zu zerschlagen", schreibt Richard A. Clarke. Sie habe alle Warnungen vor Al Qaida ignoriert, in einem unnötigen Krieg gegen Irak wertvolle Zeit verloren und dem Terrorismus Gelegenheit gegeben, sich neu zu organisieren. Wie kein anderer ist Clarke berechtigt, ein solches Urteil zu fällen. Zwei Jahrzehnte seines Lebens hat er dem Kampf gegen den Terrorismus gewidmet. Er war unter Clinton und Bush Cheforganisator der amerikanischen Anti-Terror-Politik und leitete in den entscheidenden Stunden nach den Anschlägenvom 11. September den Krisenstab im Weißen Haus. Sein Bericht, der sich auf die Entwicklungen vom ersten Golfkrieg bis zu "Bushs Vietnam" im Irak konzentriert, liest sich wie ein autobiografischer Thriller.

Predator

Author: Richard Whittle
Publisher: Henry Holt and Company
ISBN: 0805099654
Size: 40.34 MB
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The untold story of the birth of the Predator drone, a wonder weapon that transformed the American military, reshaped modern warfare, and sparked a revolution in aviation The creation of the first weapon in history whose operators can stalk and kill an enemy on the other side of the globe was far more than clever engineering. As Richard Whittle shows in Predator, it was one of the most profound developments in the history of military and aerospace technology. Once considered fragile toys, drones were long thought to be of limited utility. The Predator itself was resisted at nearly every turn by the military establishment, but a few iconoclasts refused to see this new technology smothered at birth. The remarkable cast of characters responsible for developing the Predator includes a former Israeli inventor who turned his Los Angeles garage into a drone laboratory, two billionaire brothers marketing a futuristic weapon to help combat Communism, a pair of fighter pilots willing to buck their white-scarf fraternity, a cunning Pentagon operator nicknamed "Snake," and a secretive Air Force organization known as Big Safari. When an Air Force team unleashed the first lethal drone strikes in 2001 for the CIA, the military's view of drones changed nearly overnight. Based on five years of research and hundreds of interviews, Predator reveals the dramatic inside story of the creation of a revolutionary weapon that forever changed the way we wage war and opened the door to a new age in aviation.