The North American XB-70 Valkyrie is rolled out at Palmdale, Calif. Designed to fly at three times the speed of sound and at altitudes above 70,000 feet, the XB-70 is originally planned as a manned bomber, but funding limitations allow for only two aircraft, to be used strictly for testing and research.
Billy Mitchell: Lessons a Hundred Years Hence
Dec. 16, 2025
Exactly 100 years ago, on Dec. 17, 1925, Brig. Gen. Billy Mitchell was convicted by court-martial for violating an order that required approval before he could engage with the media. Mitchell’s provocative thoughts and unorthodox methods sought attention for a cause that he saw as uniquely American.
