Military Hardware: Tanks, Bombers, Submarines and More At 13,000 MPH, DARPA’s Falcon HTV-2 Could Fly From NYC to LA in Under 12 Minutes at Mach 20, Nobody Has Built Anything Faster DARPA’s Falcon Hypersonic Technology Vehicle 2 (HTV-2) hit approximately Mach 20 — about 13,000 miles per hour or 3.6 miles per second. DARPA claimed... Brent M. Eastwood2 hours ago