The Army has announced the future of air assault: the MV-75, designed to sweep into battle at more than 320 mph, skimming ...

The A-12 Oxcart, developed by Lockheed’s Skunk Works for the CIA in the early 1960s, was the single-seat, Mach 3.29 (at 90,000 feet) precursor to the USAF’s more famous SR-71 Blackbird. -While both ...