Did yesterday's mysterious booms hint at military's HYPERSONIC future?
So secret, its existence is not even acknowledged: Futuristic 'Aurora' spy plane that travels at SIX TIMES the speed of sound is blamed for mysterious booms heard at the weekend | In November 2013, Lockheed Martin announced it was developing for its SR-72 spy plane (pictured) said to be able to accelerate up to Mach 6 [Futuristic Airplanes: http://futuristicnews.com/tag/aircraft/]
SR91 aurora / contemporary Blackbird replacement / some military magazines claim radar operators have tracked them doing mach 9 with their next generation 'pulse engine ' technology ( leaves strange patterns in sky due to their unique propulsion system = a line , then a gap , then a line etc ( looks like road markings in the sky when they are seen apparently ) aircraft ( most advanced plane type on Earth by far ) ✔️
SR-91 Aurora..Wow..This aircraft should have a Skunk on the tail..Meet the SR-71's big brother...Supposedly the Aurora prototypes all crashed, never made it past that stage. And this doesn't match the supposed "sightings" of them.: