Why am I passionate about this?

As a NASA Flight Controller and crewman on the high-altitude research aircraft, I met many pilots, including those who flew X-planes. I became passionate about extreme and experimental flying. I have experienced supersonic flight and have flown to 70,000 feet. These experiences motivated me to write three books about X-planes: Stratonauts, X-59: Lowering the Sonic Boom, and X-66A: Bracing for the Future. 


I wrote

X-59: Lowering the Sonic Boom

By Manfred “Dutch” von Ehrenfried,

Book cover of X-59: Lowering the Sonic Boom

What is my book about?

The FAA and International aviation authorities currently prohibit commercial planes from going faster than the speed of sound due to…

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The books I picked & why

Book cover of Bell X-1

Manfred “Dutch” von Ehrenfried Why did I love this book?

While scientists in Germany and the U.S. studied aerodynamics and compressibility in wind tunnels long before WW II, no one had “broken the sound barrier” in level flight. Some thought it actually was a barrier to faster flight. Of course, many WW II fighter pilots wanted to be the one to break it. 

On October 14, 1947, the Bell X-1 Glamorous Glennis, piloted by U.S. Air Force Captain Charles E. “Chuck” Yeager, became the first airplane to fly faster than the speed of sound, reaching 1,127 kilometers (700 miles) per hour (Mach 1.06). Peter Davies traces the Bell X-1, from its early development through to the influence it had on military and civilian jets in the second half of the 20th century. Someday, the average airline passenger will experience a supersonic flight.

By Peter E. Davies, Jim Laurier (illustrator), Gareth Hector (illustrator)

Why should I read it?

1 author picked Bell X-1 as one of their favorite books, and they share why you should read it.

What is this book about?

In 1947, no one knew if it was possible to break the 'sound barrier'. The Bell X-1 was the tiny, rocket-powered craft that finally broke it. It was the result of innovative designers and engineers turning their attention from the pioneering jets of World War II to a new task - an aircraft designed purely to fly faster than sound. Legendary pilots rallied to the cause, with World War II ace Chuck Yeager piloting the X-1 when it finally achieved supersonic flight in 1947, the first manned craft to reach such speeds. With historical photographs and meticulously researched digital art,…


Book cover of X-Planes: X-1 Through X-15

Manfred “Dutch” von Ehrenfried Why did I love this book?

This book describes the very beginning of experimental flights at the Muroc Bombing and Gunnery Range. When the U.S. entered WWII, it began looking for an isolated location to conduct flight testing of Top-Secret aircraft. Muroc provided the ideal location for cutting-edge flight research on the turbojet revolution. 

After the end of the War in 1946, however, a new type of research activity designed to explore the most challenging unknowns of flight began. This was the dawn of the “X-Planes.” Today, this place is called Edwards Air Force Base.

By Christopher McCall,

Why should I read it?

1 author picked X-Planes as one of their favorite books, and they share why you should read it.

What is this book about?

Edwards Air Force Base began life in September 1933 as the Muroc Bombing and Gunnery Range. By early 1942 the Flight Test Division at Wright Field in Dayton, Ohio began looking for an isolated location to conduct flight testing of Top Secret aircraft. The 44-square mile Rogers Dry Lake located nearby the training base at Muroc provided the ideal location. Eventually, all of America’s early jets, both Air Force and Navy, underwent flight testing at Muroc, which quickly became synonymous with the cutting edge flight research of the turbojet revolution. By 1946, however, a new type of research activity designed…


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Book cover of We Had Fun and Nobody Died: Adventures of a Milwaukee Music Promoter

We Had Fun and Nobody Died By Amy T. Waldman, Peter Jest,

This irreverent biography provides a rare window into the music industry from a promoter’s perspective. From a young age, Peter Jest was determined to make a career in live music, and despite naysayers and obstacles, he did just that, bringing national acts to his college campus atUW-Milwaukee, booking thousands of…

Book cover of At the Edge of Space: The X-15 Flight Program

Manfred “Dutch” von Ehrenfried Why did I love this book?

This book is written by someone who really knows the program and the Mach 3 airplane. Milton O. Thompson, a pilot active in the X-15 program from beginning to end, tells the dramatic story of one of the most successful research aircraft ever flown. I personally have met three of the 12 X-15 pilots: Neil Armstrong, Joe Engle (both from my NASA days), and Scott Crossfield, whom I met at an Experimental Aircraft Association meeting.

The book not only describes the aircraft, the flights, and the pilots but the NACA Langley Research Center’s wind tunnel work on aerodynamic heating and transfer, stability and control, and hypersonic turbulent boundary layer data for aircraft performance.

By Milton O. Thompson,

Why should I read it?

1 author picked At the Edge of Space as one of their favorite books, and they share why you should read it.

What is this book about?

In At the Edge of Space, Milton O. Thompson, a pilot active in the X-15 program from beginning to end, tells the dramatic story of one of the most successful research aircraft ever flown.


Book cover of Yeager: An Autobiography

Manfred “Dutch” von Ehrenfried Why did I love this book?

The book starts with the second flight; he has already broken the sound barrier. His writing style grabs you. After his WW II experiences, he knows that he is in a very dangerous business: that of a test pilot. In 1953, he flew a Russian MiG that had fallen into U.S. hands, being the first American to do so. That December, he set a new speed record, pushing past Mach 2 in a Bell X-1A. 

Every pilot knows about this national hero. This book also describes his many commands and his role in training the astronauts as head of the Air Force Aerospace Research Pilot School. At 89, he flew past Mach 1 again to celebrate the 65th Anniversary of his breaking the sound barrier

By Chuck Yeager,

Why should I read it?

1 author picked Yeager as one of their favorite books, and they share why you should read it.

What is this book about?

#1 MULTI-MILLION-COPY BESTSELLER • A one-of-a-kind portrait of a true American hero: General Chuck Yeager 
 
“The secret of my success is that I always managed to live to fly another day.”
 
General Chuck Yeager was the greatest test pilot of them all—the first man to fly faster than the speed of sound . . . the World War II flying ace who shot down a Messerschmitt jet with a prop-driven P-51 Mustang . . . the hero who defined a certain quality that all hotshot fly-boys of the postwar era aimed to achieve: the right stuff.

Now he tells his…


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Book cover of Me and The Times: My wild ride from elevator operator to New York Times editor, columnist, and change agent (1967-97)

Me and The Times By Robert W. Stock,

Me and The Times offers a fresh perspective on those pre-internet days when the Sunday sections of The New York Times shaped the country’s political and cultural conversation. Starting in 1967, Robert Stock edited seven of those sections over 30 years, innovating and troublemaking all the way.

His memoir is…

Book cover of Valkyrie: The North American XB-70: The USA's Ill-Fated Supersonic Heavy Bomber

Manfred “Dutch” von Ehrenfried Why did I love this book?

The concept for this aircraft was born from General Curtis LeMay’s desire for a heavy bomber with the weapon load and range of the subsonic B-52 and a top speed in excess of the supersonic medium bomber, the B-58 Hustler. I once met General LeMay in the Mercury Control Center in 1962. 

However, in April 1961, Defense Secretary McNamara stopped the production of the XB-70 due to rapid cost escalation and the USSR’s newfound ability to destroy aircraft at extremely high altitudes with missiles or the new Mig-25 fighter. The XB-70 became famous for its breakthrough technology and the spectacular images captured when an observing Starfighter collided with the Valkyrie, which crashed into the Mojave Desert.

By Graham M. Simons,

Why should I read it?

1 author picked Valkyrie as one of their favorite books, and they share why you should read it.

What is this book about?

During the 1950s, at the time Elvis Presley was rocking the world with Hound Dog and the USA was aiming to become the world's only superpower, plans were being drawn at North American Aviation in Southern California for an incredible Mach-3 strategic bomber. The concept was born as a result of General Curtis LeMay's desire for a heavy bomber with the weapon load and range of the subsonic B-52 and a top speed in excess of the supersonic medium bomber, the B-58 Hustler. If LeMay's plans came to fruition there would be 250 Valkyries in the air; it would be…


Explore my book 😀

X-59: Lowering the Sonic Boom

By Manfred “Dutch” von Ehrenfried,

Book cover of X-59: Lowering the Sonic Boom

What is my book about?

The FAA and International aviation authorities currently prohibit commercial planes from going faster than the speed of sound due to the sonic booms they create. The NASA Quest Mission involves a research aircraft that produces a very low sonic boom, one they hope will be so low that regulators will eventually allow supersonic commercial flights over land and sea. 

NASA and the Lockheed Martin Skunk Works® have teamed up to produce the X-59 research aircraft that will first fly in 2024 to demonstrate that aircraft can fly at supersonic speeds and produce an acceptable level of a sonic boom, one that is no more than just a “thump.” If so, it will change the world of air travel. 

Book cover of Bell X-1
Book cover of X-Planes: X-1 Through X-15
Book cover of At the Edge of Space: The X-15 Flight Program

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