Author: A. M. "Tex" Johnston
Publisher: Smithsonian Institution
ISBN: 1588344479
Category : Technology & Engineering
Languages : en
Pages : 320
Book Description
One of America's most daring and accomplished test pilots, Tex Johnston flew the first US jet airplanes and, in a career spanning the 1930s through the 1970s, helped create the jet age at such pioneering aersospace companies as Bell Aircraft and Boeing.
Tex Johnston
Author: A. M. "Tex" Johnston
Publisher: Smithsonian Institution
ISBN: 1588344479
Category : Technology & Engineering
Languages : en
Pages : 320
Book Description
One of America's most daring and accomplished test pilots, Tex Johnston flew the first US jet airplanes and, in a career spanning the 1930s through the 1970s, helped create the jet age at such pioneering aersospace companies as Bell Aircraft and Boeing.
Publisher: Smithsonian Institution
ISBN: 1588344479
Category : Technology & Engineering
Languages : en
Pages : 320
Book Description
One of America's most daring and accomplished test pilots, Tex Johnston flew the first US jet airplanes and, in a career spanning the 1930s through the 1970s, helped create the jet age at such pioneering aersospace companies as Bell Aircraft and Boeing.
Test Pilots of the Jet Age
Author: Colin Higgs
Publisher: Air World
ISBN: 9781526747754
Category : History
Languages : en
Pages :
Book Description
Today, as we board our flights to Adelaide, Zurich, and all points in between, we give little thought to the jet power that will take us there. But, this is only possible because just over 70 years ago a select band of British test pilots was prepared to risk all in the quest to fly further, faster and higher than ever before. Their quest was fraught with danger; disaster and death were never far away. This book captures eleven of those stories as told by the pilots themselves - their words as to how they took British aviation to the forefront of a new era, the 'Jet Age'. Britain's aircraft industry was booming in the years immediately after the end of the Second World War and the demand for test pilots seemingly limitless as new aircraft types rolled off the drawing boards. Meteors, Vampires, Hunters, Comets, Victors, Vulcans and Harriers were some of the aircraft that became world-beaters. Today, these names and the role played by the test pilots in bringing these projects to fruition are all but forgotten. The stories were filmed over a number of years and it is the edited transcripts of those interviews that form a unique and rare perspective on such a pivotal era in aviation. Most were veterans of the Second World War with illustrious service records. Now they faced new battles as they flew new airframes and engines to the limit and sometimes beyond. First, they had to conquer the 'sound barrier' which to many, scientists and the public alike, had assumed almost mythic status. Having done that, they were soon flying at twice the speed of sound, such was the rate of progress. It took discipline, technical know-how, an above average level of flying skill and according to some, a lack of imagination to make a good test pilot. Their stories are often insightful, always modest and often tinged with humour.
Publisher: Air World
ISBN: 9781526747754
Category : History
Languages : en
Pages :
Book Description
Today, as we board our flights to Adelaide, Zurich, and all points in between, we give little thought to the jet power that will take us there. But, this is only possible because just over 70 years ago a select band of British test pilots was prepared to risk all in the quest to fly further, faster and higher than ever before. Their quest was fraught with danger; disaster and death were never far away. This book captures eleven of those stories as told by the pilots themselves - their words as to how they took British aviation to the forefront of a new era, the 'Jet Age'. Britain's aircraft industry was booming in the years immediately after the end of the Second World War and the demand for test pilots seemingly limitless as new aircraft types rolled off the drawing boards. Meteors, Vampires, Hunters, Comets, Victors, Vulcans and Harriers were some of the aircraft that became world-beaters. Today, these names and the role played by the test pilots in bringing these projects to fruition are all but forgotten. The stories were filmed over a number of years and it is the edited transcripts of those interviews that form a unique and rare perspective on such a pivotal era in aviation. Most were veterans of the Second World War with illustrious service records. Now they faced new battles as they flew new airframes and engines to the limit and sometimes beyond. First, they had to conquer the 'sound barrier' which to many, scientists and the public alike, had assumed almost mythic status. Having done that, they were soon flying at twice the speed of sound, such was the rate of progress. It took discipline, technical know-how, an above average level of flying skill and according to some, a lack of imagination to make a good test pilot. Their stories are often insightful, always modest and often tinged with humour.
Jet Age
Author: Sam Howe Verhovek
Publisher: Penguin
ISBN: 158333436X
Category : History
Languages : en
Pages : 289
Book Description
The captivating story of the titans, engineers, and pilots who raced to design a safe and lucrative passenger jet. In Jet Age, journalist Sam Howe Verhovek explores the advent of the first generation of jet airliners and the people who designed, built, and flew them. The path to jet travel was triumphal and amazingly rapid-less than fifty years after the Wright Brothers' first flight at Kitty Hawk, Great Britain led the world with the first commercial jet plane service. Yet the pioneering British Comet was cursed with a tragic, mysterious flaw, and an upstart Seattle company put a new competitor in the sky: the Boeing 707 Jet Stratoliner. Jet Age vividly recreates the race between two nations, two global airlines, and two rival teams of brilliant engineers for bragging rights to the first jet service across the Atlantic Ocean in 1958. At the center of this story are great minds and courageous souls, including Sir Geoffrey de Havilland, who spearheaded the development of the Comet, even as two of his sons lost their lives flying earlier models of his aircraft; Sir Arnold Hall, the brilliant British aerodynamicist tasked with uncovering the Comet's fatal flaw; Bill Allen, Boeing's deceptively mild-mannered president; and Alvin "Tex" Johnston, Boeing's swashbuckling but supremely skilled test pilot. The extraordinary airplanes themselves emerge as characters in the drama. As the Comet and the Boeing 707 go head-to-head, flying twice as fast and high as the propeller planes that preceded them, the book captures the electrifying spirit of an era: the Jet Age. In the spirit of Stephen Ambrose's Nothing Like It in the World, Verhovek's Jet Age offers a gorgeous rendering of an exciting age and fascinating technology that permanently changed our conception of distance and time, of a triumph of engineering and design, and of a company that took a huge gamble and won.
Publisher: Penguin
ISBN: 158333436X
Category : History
Languages : en
Pages : 289
Book Description
The captivating story of the titans, engineers, and pilots who raced to design a safe and lucrative passenger jet. In Jet Age, journalist Sam Howe Verhovek explores the advent of the first generation of jet airliners and the people who designed, built, and flew them. The path to jet travel was triumphal and amazingly rapid-less than fifty years after the Wright Brothers' first flight at Kitty Hawk, Great Britain led the world with the first commercial jet plane service. Yet the pioneering British Comet was cursed with a tragic, mysterious flaw, and an upstart Seattle company put a new competitor in the sky: the Boeing 707 Jet Stratoliner. Jet Age vividly recreates the race between two nations, two global airlines, and two rival teams of brilliant engineers for bragging rights to the first jet service across the Atlantic Ocean in 1958. At the center of this story are great minds and courageous souls, including Sir Geoffrey de Havilland, who spearheaded the development of the Comet, even as two of his sons lost their lives flying earlier models of his aircraft; Sir Arnold Hall, the brilliant British aerodynamicist tasked with uncovering the Comet's fatal flaw; Bill Allen, Boeing's deceptively mild-mannered president; and Alvin "Tex" Johnston, Boeing's swashbuckling but supremely skilled test pilot. The extraordinary airplanes themselves emerge as characters in the drama. As the Comet and the Boeing 707 go head-to-head, flying twice as fast and high as the propeller planes that preceded them, the book captures the electrifying spirit of an era: the Jet Age. In the spirit of Stephen Ambrose's Nothing Like It in the World, Verhovek's Jet Age offers a gorgeous rendering of an exciting age and fascinating technology that permanently changed our conception of distance and time, of a triumph of engineering and design, and of a company that took a huge gamble and won.
Speed
Author: Gilliland|Keith Dunnavant Bob Gilliland (Dunnavant)
Publisher: U of Nebraska Press
ISBN: 1640124675
Category : Biography & Autobiography
Languages : en
Pages : 293
Book Description
On December 22, 1964, at a small, closely guarded airstrip in the desert town of Palmdale, California, Lockheed test pilot Bob Gilliland stepped into a strange-looking aircraft and roared into aviation history. Developed at the super-secret Skunk Works, the SR-71 Blackbird was a technological marvel. In fact, more than a half century later, the Mach 3-plus titanium wonder, designed by Clarence L. "Kelly" Johnson, remains the world's fastest jet. It took a test pilot with the right combination of intelligence, skill, and nerve to make the first flight of the SR-71, and the thirty-eight-year-old Gilliland had spent much of his life pushing the edge. In Speed one of America's greatest test pilots collaborates with acclaimed journalist Keith Dunnavant to tell his remarkable story: How he was pushed to excel by his demanding father. How a lucky envelope at the U.S. Naval Academy altered the trajectory of his life. How he talked his way into U.S. Air Force fighters at the dawn of the jet age, despite being told he was too tall. How he made the conscious decision to trade the security of the business world for the dangerous life of an experimental test pilot, including time at the clandestine base Area 51, working on the Central Intelligence Agency's Oxcart program. The narrative focuses most intently on Gilliland's years as the chief test pilot of the SR-71, as he played a leading role in the development of the entire fleet of spy planes while surviving several emergencies that very nearly ended in disaster. Waging the Cold War at 85,000 feet, the SR-71 became an unrivaled intelligence-gathering asset for the U.S. Air Force, invulnerable to enemy defenses for a quarter century. Gilliland's work with the SR-71 defined him, especially after the Cold War, when many of the secrets began to be revealed and the plane emerged from the shadows--not just as a tangible museum artifact but as an icon that burrowed deep into the national consciousness. Like the Blackbird itself, Speed is a story animated by the power of ambition and risk-taking during the heady days of the American Century.
Publisher: U of Nebraska Press
ISBN: 1640124675
Category : Biography & Autobiography
Languages : en
Pages : 293
Book Description
On December 22, 1964, at a small, closely guarded airstrip in the desert town of Palmdale, California, Lockheed test pilot Bob Gilliland stepped into a strange-looking aircraft and roared into aviation history. Developed at the super-secret Skunk Works, the SR-71 Blackbird was a technological marvel. In fact, more than a half century later, the Mach 3-plus titanium wonder, designed by Clarence L. "Kelly" Johnson, remains the world's fastest jet. It took a test pilot with the right combination of intelligence, skill, and nerve to make the first flight of the SR-71, and the thirty-eight-year-old Gilliland had spent much of his life pushing the edge. In Speed one of America's greatest test pilots collaborates with acclaimed journalist Keith Dunnavant to tell his remarkable story: How he was pushed to excel by his demanding father. How a lucky envelope at the U.S. Naval Academy altered the trajectory of his life. How he talked his way into U.S. Air Force fighters at the dawn of the jet age, despite being told he was too tall. How he made the conscious decision to trade the security of the business world for the dangerous life of an experimental test pilot, including time at the clandestine base Area 51, working on the Central Intelligence Agency's Oxcart program. The narrative focuses most intently on Gilliland's years as the chief test pilot of the SR-71, as he played a leading role in the development of the entire fleet of spy planes while surviving several emergencies that very nearly ended in disaster. Waging the Cold War at 85,000 feet, the SR-71 became an unrivaled intelligence-gathering asset for the U.S. Air Force, invulnerable to enemy defenses for a quarter century. Gilliland's work with the SR-71 defined him, especially after the Cold War, when many of the secrets began to be revealed and the plane emerged from the shadows--not just as a tangible museum artifact but as an icon that burrowed deep into the national consciousness. Like the Blackbird itself, Speed is a story animated by the power of ambition and risk-taking during the heady days of the American Century.
The First Jet Pilot
Author: Lutz Warsitz
Publisher: Casemate Publishers
ISBN: 1781598142
Category : History
Languages : en
Pages : 239
Book Description
The pilot’s son delivers “a fascinating read and an invaluable insight in to the workings of pre- and wartime test flying under the Third Reich” (Military Aircraft Monthly). On 27 August 1939, Flugkapitan Erich Warsitz became the first man to fly a jet aircraft, the Heinkel He 178, and in June of the same year he flew the first liquid-fuel rocket aircraft, the Heinkel He 176. His legendary flying skills enabled him to assist the pioneering German aircraft and engine design teams that included Wernher von Braun and Ernst Heinkel. He repeatedly risked his life extending the frontiers of aviation in speed, altitude and technology and survived many life-threatening incidents. This book is written by Erich’s son who has used his father’s copious notes and log books that explain vividly the then halcyon days of German aviation history. Warsitz was feted by the Reich’s senior military figures such as Milch, Udet and Lucht and even Hitler keenly followed his experimental flying. Little is known of this pioneer period because of the strict secrecy which shrouded the whole project—it is a fascinating story that tells of the birth of the jet age and flight as we know it today. The book includes many unseen photographs and diagrams. “This book is nothing short of a gem for anyone interested in real aviation history . . . through Lutz Warsitz’s words, readers share the emotions— apprehension, loyalty, fear, frustration and elation—of being part of some of aviation’s most significant advances.” —Pacific Wing Magazine “More than just a good read. An historical document of inestimable value in the aviation pioneering field.” —Airnews
Publisher: Casemate Publishers
ISBN: 1781598142
Category : History
Languages : en
Pages : 239
Book Description
The pilot’s son delivers “a fascinating read and an invaluable insight in to the workings of pre- and wartime test flying under the Third Reich” (Military Aircraft Monthly). On 27 August 1939, Flugkapitan Erich Warsitz became the first man to fly a jet aircraft, the Heinkel He 178, and in June of the same year he flew the first liquid-fuel rocket aircraft, the Heinkel He 176. His legendary flying skills enabled him to assist the pioneering German aircraft and engine design teams that included Wernher von Braun and Ernst Heinkel. He repeatedly risked his life extending the frontiers of aviation in speed, altitude and technology and survived many life-threatening incidents. This book is written by Erich’s son who has used his father’s copious notes and log books that explain vividly the then halcyon days of German aviation history. Warsitz was feted by the Reich’s senior military figures such as Milch, Udet and Lucht and even Hitler keenly followed his experimental flying. Little is known of this pioneer period because of the strict secrecy which shrouded the whole project—it is a fascinating story that tells of the birth of the jet age and flight as we know it today. The book includes many unseen photographs and diagrams. “This book is nothing short of a gem for anyone interested in real aviation history . . . through Lutz Warsitz’s words, readers share the emotions— apprehension, loyalty, fear, frustration and elation—of being part of some of aviation’s most significant advances.” —Pacific Wing Magazine “More than just a good read. An historical document of inestimable value in the aviation pioneering field.” —Airnews
Growing Up Boeing
Author: Rebecca Wallick
Publisher:
ISBN: 9780991364800
Category : Airplanes
Languages : en
Pages : 342
Book Description
Part memoir, part biography, Growing Up Boeing tells the story of the pioneers of the Golden Age of commercial jet transports from an insider's perspective. Take a nostalgic flight back in time to the dawn of the jet age-1950s through 1980s-when the best experimental test pilots flew by the seat of their pants, putting new commercial jets through tests that stressed and pushed the edge of performance envelopes, discovering their limits and tolerances. Fly along on demonstration and proving flights as the test pilots help Boeing sell the airplanes to airlines around the world, meeting a few celebrities along the way. See how they lived their lives in the air and on the ground-their adventurous spirits, need for speed, leisure activities and families. Secrets big and small are revealed, as are hair-raising moments when the hazards, the incidents, near accidents, and tragic events inherent in exploring the limits of aeronautical technology and new airplane designs are described. This artfully narrated account breathes life into the extremely personal and human experiences that have, in some magical way, been shared at some level by so many, and provides more than a hint of what has made this aircraft manufacturer legendary.
Publisher:
ISBN: 9780991364800
Category : Airplanes
Languages : en
Pages : 342
Book Description
Part memoir, part biography, Growing Up Boeing tells the story of the pioneers of the Golden Age of commercial jet transports from an insider's perspective. Take a nostalgic flight back in time to the dawn of the jet age-1950s through 1980s-when the best experimental test pilots flew by the seat of their pants, putting new commercial jets through tests that stressed and pushed the edge of performance envelopes, discovering their limits and tolerances. Fly along on demonstration and proving flights as the test pilots help Boeing sell the airplanes to airlines around the world, meeting a few celebrities along the way. See how they lived their lives in the air and on the ground-their adventurous spirits, need for speed, leisure activities and families. Secrets big and small are revealed, as are hair-raising moments when the hazards, the incidents, near accidents, and tragic events inherent in exploring the limits of aeronautical technology and new airplane designs are described. This artfully narrated account breathes life into the extremely personal and human experiences that have, in some magical way, been shared at some level by so many, and provides more than a hint of what has made this aircraft manufacturer legendary.
Tex Johnston
Author: Alvin M. Johnston
Publisher:
ISBN: 9780553295870
Category : Aeronautics
Languages : en
Pages : 326
Book Description
Publisher:
ISBN: 9780553295870
Category : Aeronautics
Languages : en
Pages : 326
Book Description
A Wasp Among Eagles
Author: Ann Carl
Publisher: Smithsonian Institution
ISBN: 1588343413
Category : History
Languages : en
Pages : 161
Book Description
Before World War II most Americans did not believe that the average woman could fly professionally, but during the war more than a thousand women pilots proved them wrong. These were the Women Airforce Service Pilots (WASPs), who served as military flyers on the home front. In March 1944 one of them, Ann Baumgartner, was assigned to the Fighter Flight Test Branch at Wright Field in Dayton, Ohio. There she would make history as the only woman to test-fly experimental planes during the war and the first woman to fly a jet. A WASP among Eagles is the first-person story of how Baumgartner learned to fly, trained as a WASP, and became one of the earliest jet-age pioneers. Flying such planes as the Curtiss A-25 Helldiver, the Lockheed P-38, and the B-29 Superfortress, she was the first woman to participate in a host of experiments, including in-air refueling and flying the first fighter equipped with a pressurized cockpit. But in evaluating the long-awaited turbojet-powered Bell YP-59A, she set a “first” record that would remain unchallenged for ten years.
Publisher: Smithsonian Institution
ISBN: 1588343413
Category : History
Languages : en
Pages : 161
Book Description
Before World War II most Americans did not believe that the average woman could fly professionally, but during the war more than a thousand women pilots proved them wrong. These were the Women Airforce Service Pilots (WASPs), who served as military flyers on the home front. In March 1944 one of them, Ann Baumgartner, was assigned to the Fighter Flight Test Branch at Wright Field in Dayton, Ohio. There she would make history as the only woman to test-fly experimental planes during the war and the first woman to fly a jet. A WASP among Eagles is the first-person story of how Baumgartner learned to fly, trained as a WASP, and became one of the earliest jet-age pioneers. Flying such planes as the Curtiss A-25 Helldiver, the Lockheed P-38, and the B-29 Superfortress, she was the first woman to participate in a host of experiments, including in-air refueling and flying the first fighter equipped with a pressurized cockpit. But in evaluating the long-awaited turbojet-powered Bell YP-59A, she set a “first” record that would remain unchallenged for ten years.
Jet Age
Author: Sam Howe Verhovek
Publisher: Penguin
ISBN: 1101444398
Category : History
Languages : en
Pages : 223
Book Description
The captivating story of the titans, engineers, and pilots who raced to design a safe and lucrative passenger jet. In Jet Age, journalist Sam Howe Verhovek explores the advent of the first generation of jet airliners and the people who designed, built, and flew them. The path to jet travel was triumphal and amazingly rapid-less than fifty years after the Wright Brothers' first flight at Kitty Hawk, Great Britain led the world with the first commercial jet plane service. Yet the pioneering British Comet was cursed with a tragic, mysterious flaw, and an upstart Seattle company put a new competitor in the sky: the Boeing 707 Jet Stratoliner. Jet Age vividly recreates the race between two nations, two global airlines, and two rival teams of brilliant engineers for bragging rights to the first jet service across the Atlantic Ocean in 1958. At the center of this story are great minds and courageous souls, including Sir Geoffrey de Havilland, who spearheaded the development of the Comet, even as two of his sons lost their lives flying earlier models of his aircraft; Sir Arnold Hall, the brilliant British aerodynamicist tasked with uncovering the Comet's fatal flaw; Bill Allen, Boeing's deceptively mild-mannered president; and Alvin "Tex" Johnston, Boeing's swashbuckling but supremely skilled test pilot. The extraordinary airplanes themselves emerge as characters in the drama. As the Comet and the Boeing 707 go head-to-head, flying twice as fast and high as the propeller planes that preceded them, the book captures the electrifying spirit of an era: the Jet Age. In the spirit of Stephen Ambrose's Nothing Like It in the World, Verhovek's Jet Age offers a gorgeous rendering of an exciting age and fascinating technology that permanently changed our conception of distance and time, of a triumph of engineering and design, and of a company that took a huge gamble and won.
Publisher: Penguin
ISBN: 1101444398
Category : History
Languages : en
Pages : 223
Book Description
The captivating story of the titans, engineers, and pilots who raced to design a safe and lucrative passenger jet. In Jet Age, journalist Sam Howe Verhovek explores the advent of the first generation of jet airliners and the people who designed, built, and flew them. The path to jet travel was triumphal and amazingly rapid-less than fifty years after the Wright Brothers' first flight at Kitty Hawk, Great Britain led the world with the first commercial jet plane service. Yet the pioneering British Comet was cursed with a tragic, mysterious flaw, and an upstart Seattle company put a new competitor in the sky: the Boeing 707 Jet Stratoliner. Jet Age vividly recreates the race between two nations, two global airlines, and two rival teams of brilliant engineers for bragging rights to the first jet service across the Atlantic Ocean in 1958. At the center of this story are great minds and courageous souls, including Sir Geoffrey de Havilland, who spearheaded the development of the Comet, even as two of his sons lost their lives flying earlier models of his aircraft; Sir Arnold Hall, the brilliant British aerodynamicist tasked with uncovering the Comet's fatal flaw; Bill Allen, Boeing's deceptively mild-mannered president; and Alvin "Tex" Johnston, Boeing's swashbuckling but supremely skilled test pilot. The extraordinary airplanes themselves emerge as characters in the drama. As the Comet and the Boeing 707 go head-to-head, flying twice as fast and high as the propeller planes that preceded them, the book captures the electrifying spirit of an era: the Jet Age. In the spirit of Stephen Ambrose's Nothing Like It in the World, Verhovek's Jet Age offers a gorgeous rendering of an exciting age and fascinating technology that permanently changed our conception of distance and time, of a triumph of engineering and design, and of a company that took a huge gamble and won.
Fighter Pilot's Heaven
Author: Donald S. Lopez, Sr.
Publisher: Smithsonian Institution
ISBN: 1560989165
Category : History
Languages : en
Pages : 254
Book Description
Fighter Pilot's Heaven presents the dramatic inside story of the American military's transition into the jet age, as told by a flyer whose life depended on its success. With colorful anecdotes about fellow pilots as well as precise technical information, Donald S. Lopez describes how it was to be “behind the stick” as a test pilot from 1945 to 1950, when the U.S. military was shifting from war to peacetime operations and from propeller to jet aircraft. An ace pilot who had served with Gen. Claire Chennault's Flying Tiger Fighter Group, Lopez was assigned at the close of World War II to the elite Proof Test Group of the Air Proving Ground Command. Located at Eglin Field (later Eglin Air Force Base) in Florida, the group determined the operational suitability of Air Force weapons systems and aircraft and tested the first operational jet, the P-80 Shooting Star. Jet fighters required new techniques, tactics, and weaponry. Lopez recounts historic test flights in the P-59, P-80, and P-84, among other planes, describing complex combat maneuvers, hair-raising landings in unusual positions, and disastrous crashes and near crashes. This memoir is peppered with lively accounts of many pilots and their colleagues, revealing how airmen coped with both exhilarating successes and sometimes tragic failures.
Publisher: Smithsonian Institution
ISBN: 1560989165
Category : History
Languages : en
Pages : 254
Book Description
Fighter Pilot's Heaven presents the dramatic inside story of the American military's transition into the jet age, as told by a flyer whose life depended on its success. With colorful anecdotes about fellow pilots as well as precise technical information, Donald S. Lopez describes how it was to be “behind the stick” as a test pilot from 1945 to 1950, when the U.S. military was shifting from war to peacetime operations and from propeller to jet aircraft. An ace pilot who had served with Gen. Claire Chennault's Flying Tiger Fighter Group, Lopez was assigned at the close of World War II to the elite Proof Test Group of the Air Proving Ground Command. Located at Eglin Field (later Eglin Air Force Base) in Florida, the group determined the operational suitability of Air Force weapons systems and aircraft and tested the first operational jet, the P-80 Shooting Star. Jet fighters required new techniques, tactics, and weaponry. Lopez recounts historic test flights in the P-59, P-80, and P-84, among other planes, describing complex combat maneuvers, hair-raising landings in unusual positions, and disastrous crashes and near crashes. This memoir is peppered with lively accounts of many pilots and their colleagues, revealing how airmen coped with both exhilarating successes and sometimes tragic failures.