Summary and Key Points: The X-15 program, spanning 199 flights between 1959 and 1968, pushed the boundaries of aeronautics into the hypersonic realm. -Capable of reaching altitudes of 102,000 feet, ...

The North American X-15 did more than set records; it quietly redrew the map of what a piloted aircraft could survive at the edge of space. By pushing hypersonic flight to extremes that still stand ...

An important part of data collection for the United States space program, the North American X-15 had astonishing performance utilizing the technology of the 1950s and 60s. The North American X-15 was ...