On the Frontier

The book offers a comprehensive history of flight-testing Xplanes, featuring detailed accounts of iconic aircraft such as the X-1 and XZ-15, piloted by aviation legends like Chuck Yeager. It explores groundbreaking NASA and Defense Department programs that advanced aeronautical technology for military, space, and commercial applications. With a thoroughly updated text, three new chapters, and a wealth of rare photographs, this work serves as an essential resource for aviation enthusiasts and anyone interested in the evolution of manned flight.