From the Archives: Six Times The U.S. Air Force Aimed Too HighSteve Trimble September 09, 2022
The Defense Department spends billions of dollars placing bets on new technologies every year. This gallery explores some of the Air Force efforts that pushed the boundaries of physics. Some, such as the XF-103, reached so far it was canceled altogether. The design of other projects, such as the X-20, live on in the commercial space vehicles we see today.