I'd like to recommend looking into information on the SR-71 (address to the researching part of this thread) Blackbird. One book I have here with me
states:
this all led to the retirement of the SR-71's in the mid 1990's. Could the Aurora be the successor and the cause of supersonic booms in the
southwest United States, that people have been hearing about?
Please note the above book is taken from a compiled collection of Aircraft, created by Stanford University, and used to inform the public of aircraft
currently in and out of service, including countries such as: Brittan, China, Germany, Japan, Korea, Russia, and Vietnam, past and present. The book
is entitled
The Encyclopedia of World Aircraft The edition in question is 1997.
References to such an aircraft are also viewable in Ace Combat 03, as "Ouroboro's AI Program".
Static Information
Aurora Project Hypersonic Aircraft
This page also links to
AboveTopSecret.com's Aurora Secret Hypersonic Aircraft Page. This
page can be used as a vital location for link sources and other Aurora related information.
The
FAS Website which was previously mentioned. This contains a large quantity of Aurora information, as well as other
current experimental aircraft information, and disclosed information, true or false is the question.
ATS's owner Simon Gray made an article on First Science which can been seen and read
here
at this location:
Continually growing evidence suggests that the answer to this question is yes. Perhaps the most well-known event which provides evidence of such a
craft's existence is the sighting of a triangular plane over the North Sea in August 1989 by oil-exploration engineer Chris Gibson. As well as the
famous "skyquakes" heard over Los Angeles since the early 1990s, found to be heading for the secret Groom Lake installation in the Nevada desert,
numerous other facts provide an understanding of how the aircraft's technology works. Rumored to exist but routinely denied by U.S. officials, the
name of this aircraft is Aurora.
Wikipedia, a very vast knowledge database in the US, and the UK contains links and information regarding
Aurora:
Aurora is the popular name for a hypothesised American reconnaissance aircraft, believed by some to be capable of hypersonic flight at speeds of
Mach 6-20. According to the hypothesis, the Aurora was developed in the 1980s or 1990s as a replacement for the aging and expensive SR-71
Blackbird.
The Aurora Research Project which was conducted by Above Top Secret, indicates
timelines of certain sightings of the aircraft.