Finally! US Launches SR 91 Aurora hypersonic Airplane, which can Speed up to Mach 5+

Finally! US Launches SR 91 Aurora hypersonic Airplane, which can Speed up to Mach 5+
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Meet the SR-91 Aurora: The Mach 6 Spy Plane That Could Change Everything
Is the SR-91 Aurora a real thing? Or is this just an internet myth? In the 1980s an idea was conceived by military planners to develop a hypersonic spy plane that could reach Mach 5+, making it truly the fastest manned aircraft ever to fly. While there have been reported sightings of the prototypes, the SR-91 Aurora, if it even existed, likely never made it much best the concept stage.
The goal of the project was to develop a replacement for the aging and expensive to maintain a fleet of SR-71 Blackbirds, which cost around $200 – $300 million a year to operate. Technically known as a Special Access Program (SAP) – a “black program” that isn’t generally for public knowledge – little has been released about the SR-91. Even the name “Aurora” was only disclosed when censors failed to catch a reference to it a 1985 budget request that also discussed the state of the SR-71 and U-2 programs.
More recently in May 2006, a British Ministry of Defence report referred to the U.S. Air Force priority plans to produce a supersonic vehicle that could reach speeds of Mach 4 to 6. There has been much speculation in the nearly 15 years since that this may have been another reference to the SR-91 Aurora, and while it seems plausible this is the same program for a reconnaissance aircraft from 21 years prior, there is simply too little information to know for certain.
Does It or Doesn’t It?
The most lingering question is whether the military actually produced even a prototype of the SR-91 Aurora. There is almost no evidence to suggest it had.
According to FighterJetsWorld.com there have been a couple of unverified sightings of what may or may not have been an SR-91. The most “well-known instance” that could suggest the aircraft is real was the sighting of a triangular aircraft over the North Sea in August 1989 by oil-exploration engineer Chris Gibson, but this could be a case of trying to suggest that what was sighted was a hypothetical plane rather than an existing aircraft such as a B-2 Spirit – which certainly has a triangular shape and did in fact have its first flight earlier that year.

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