North American XB-70 Valkyrie : A Photo Chronicle

The North American XB-70 is one of the most unusual looking aircraft in aviation history, and only two were constructed.

It was originally designed as a Mach 3 high-altitude bomber, but was later used as a research aircraft.

This new book by John Campbell and Garry Pape gives a short, detailed history of the XB-70, including production, flight tests, and the fatal crash of Aircraft #2 in 1965.

Aircraft #1 is now at the U.S. Air Force Museum at Wright-Patterson AFB.