The Pentagon did not immediately confirm the cause of the landing, and said the incident was still under investigation.
FLYING Magazine on MSN
NASA, Lockheed's Supersonic X-59 ‘Returned Prematurely' on Second Flight
Supersonic test aircraft aimed to reach 260 mph at altitude of 20,000 feet.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results