The problem occurred during the critical point of transition to aerodynamic flight, DARPA said in a statement that described the mission as an attempt to fly the fastest aircraft ever built.
“More than nine minutes of data was collected before an anomaly caused loss of signal,” it said. “Initial indications are that the aircraft impacted the Pacific Ocean along the planned flight path.”
The 7:45 a.m. launch from Vandenberg Air Force Base, 130 miles (200 kilometers) northwest of Los Angeles, was the second of two planned flights of a Falcon Hypersonic Technology Vehicle-2. Contact was also lost during the first mission.
Source: John Antczak for the Associated Press.