North American XB-70 Valkyrie | National Museum of the U.S. Air Force

North American XB-70 Valkyrie The futuristic XB-70A was originally conceived in the 1950s as a high-altitude, nuclear strike bomber that could fly at Mach 3. The first XB-70A airplane continued to fly and generate valuable test data in the research program until it came to the museum in 1969. #avgeek #history #xb70 | National Museum of the U.S. Air Force