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For the CAF aircraft, see CP-140 Aurora.
Aurora (also credited as the SR-91 Aurora) is the popular name for a hypothesised United States reconnaissance aircraft, believed by conspiracy theorists to be capable of hypersonic flight (speeds of over Mach 5). According to the hypothesis, the Aurora was developed in the 1980s or 1990s as a replacement for the aging and expensive SR-71 Blackbird. A British Ministry of Defence report, released under the Freedom of Information Act, from May 2006 refers to USAF priority plans to produce a Mach 4-6 highly supersonic vehicle.[2] In September 2007, DARPA and the USAF signed a memo of understanding[3] to build a Mach-6 unmanned aircraft called "Blackswift" under the Force Application and Launch from Continental United States (Falcon)[4] program, but that does not explain the earlier reports. It is believed by some that the Aurora project was canceled due to a shift from spyplanes to high-tech unmanned aerial vehicles and reconnaissance satellites which can do a similar job as a spyplane, but with less risk of casualties or loss of highly expensive, sensitive equipment.
History
The SR-71 Blackbird, the aircraft the Aurora supposedly replaced
In March 1990, the magazine Aviation Week & Space Technology first broke the news that the term "Aurora" was inadvertently released in the 1985 U.S. budget, as an allocation of $455 million USD for "Black aircraft PRODUCTION" (emphasis added) in FY 1987. Note that this was for building aircraft, not Research and Development.[5] According to Aviation Week, Aurora referred to a group of exotic aircraft projects, and not to one particular airframe. Funding of the project allegedly reached $2.3 billion in fiscal 1987, according to a 1986 procurement document obtained by Aviation Week. However, according to Ben Rich, former director of Lockheed's Skunk Works (now the Lockheed Advanced Development Company), Aurora was the code name for the B-2 stealth bomber competition funding, and no such hypersonic plane ever existed.[6] Lockheed Skunk WorksLockheed's Skunk Works has been suggested[who?] as the prime contractor for the Aurora. Throughout the 1980s, financial analysts[who?] concluded that Lockheed had been engaged in several large classified projects, but the known projects could not account for the declared net income. Financial analysts at Kemper Securities have examined Lockheed Advanced Development Company's declared revenues from Black programs:
The only declared Lockheed Black Projects are the U2-R and F-117A upgrade programs, and nothing new has been announced between 1987 and 1993. It was also discovered[who?] that the total U.S. budget allocation for Project Aurora for 1987 was no less than $2.27 billion. According to Kemper, this would indicate a first flight of around 1989. The spread of U.S. Government payments to Lockheed indicate that the aircraft was probably about one-fifth (20%) of the way through its development program as of 1992, or has been "extensively prototyped." Around $4.5 billion has already been spent.[7] Chris Gibson sightingIn late August 1989, while working as an engineer on the jack-up barge "GSF Galveston Key" in the North Sea, Chris Gibson and another witness saw an unfamiliar isosceles triangle-shaped delta aircraft, apparently refueling from a KC-135 Stratotanker and accompanied by a pair of F-111 bombers. Gibson and his friend observed this spectacle for several minutes, until the aircraft went out of sight. Having dismissed the F-117, Mirage IV and fully-swept wing F-111 as the identity of this unfamiliar aircraft, Gibson drew a sketch of the formation. Gibson was a member of the Royal Observer Corps (ROC) — and more importantly, had been in the Royal Observer Corps's trophy winning international aircraft recognition team since 1980 — but was unable to identify this aircraft.[8] When the sighting was made public in 1992, the British Defence Secretary Tom King was told, "There is no knowledge in the MoD of a 'black' programme of this nature, although it would not surprise the relevant desk officers in the Air Staff and Defence Intelligence Staff if it did exist."[9] Sonic booms
Screenshot of Aurora in the computer game X-Plane
A series of unusual sonic booms were detected in Southern California, beginning in mid to late 1991. On at least five occasions, these sonic booms were recorded by at least 25 of the 220 U.S. Geological Survey sensors across Southern California used to pinpoint earthquake epicenters. The incidents were recorded in June, October and November 1990, and late January 1991.[citation needed] Seismologists[who?] estimate that the aircraft were flying at speeds between Mach 5 and 6 (3,300-4,000 mph) and at altitudes of 8-10 km (26,200-32,800 ft). The aircraft's flight path was in a north-northeast direction, consistent with flight paths to secret test ranges in Nevada. Seismologists say[who?] that the sonic booms were characteristic of a smaller vehicle than the 37-meter long shuttle orbiter. Furthermore, neither the shuttle nor NASA's single SR-71B was operating on the days the booms were registered.[10] It is not definitively known if these events can be tied to the Aurora program or to other acknowledged or secret programs.[original research?] In the article "In Plane Sight?" which appeared in the Washington City Paper on July 3, 1992 (p.12-13), one of the seismologists, Jim Mori, noted: "We can't tell anything about the vehicle. They seem stronger than other sonic booms that we record once in a while. They've all come on Thursday mornings about the same time, between 6 and 7 in the morning."[11] Former NASA sonic boom expert Dom Maglieri studied the 15-year old sonic boom data from the California Institute of Technology and has deemed that the data showed "something at 90,000 feet, Mach 4 to Mach 5". He also said the booms did not look like booms from aircraft that had traveled through the atmosphere many miles away at LAX, rather, they appeared to be booms from a high-altitude aircraft directly above the ground moving at high speeds.[citation needed] The boom signatures of the two different aircraft patterns are wildly different.[12] Steven Douglas sightingOn March 23, 1992, near Amarillo, Texas, Steven Douglas photographed the "doughnuts on a rope" contrail and linked this sighting to distinctive sounds. He described the engine noise in the May 11, 1992, edition of Aviation Week & Space Technology (p.62-63) as a:
The distinctive "doughnuts on a rope" contrail and pulsing sounds reported by many[who?] have given rise to the speculation that the aircraft might use pulse detonation propulsion technology originally patented in the 1950s, but not used on any acknowledged non-research project. In addition to providing the first photographs of the distinctive contrail previously reported by many, the significance of this sighting was enhanced by Douglas' reports of intercepts of radio transmissions:
A month later, radio enthusiasts in California monitoring Edwards AFB Radar (callsign "Joshua Control") heard early morning radio transmissions between Joshua and a high flying aircraft using the callsign "Gaspipe" (which could be a reference to the Aurora's supposed exotic propulsion system[original research?]). Joshua controllers were vectoring Gaspipe into Edwards AFB, using terminology usually used during Space Shuttle recoveries.[citation needed]
At the time, NASA was operating both the SR-71 and the U2-R from Edwards, but it has been confirmed that neither of these types were flying at the time Gaspipe was heard.[13] Curtis Peebles claims in his book Dark Eagles that the intercepted radio transmissions were probably a prank on the part of Edwards security personnel. The Scottish connection
Screenshot of the Aurora aircraft in the flight simulator X-Plane.
Beginning in 1991, reports started appearing in Scottish newspapers — including The Scotsman — that the Aurora was landing and taking off from Machrihanish airbase on the Kintyre peninsula. Machrihanish was an RAF base with a long runway which was a V bomber dispersal base during the Cold War before being handed over to the U.S. Navy, which used it as an overseas base for their Navy SEALs until 1995. It was alleged that air traffic controllers had seen aircraft on their radars taking off from there and accelerating to high Mach numbers. None of the supposed controllers has ever gone on the record. Others have claimed that Royal Marines inadvertently discovered the Aurora in a hangar at Machrihanish, but again none of the supposed witnesses have ever gone on the record. Other sightings
Decline of the AuroraA decline in the number of sightings after 1992, combined with the widespread understanding that the U.S. is now using low-speed "stealthy" drone aircraft in the reconnaissance role combined with spy satellites, led some observers to conclude by 1999 that even if the Aurora had existed, it was probably no longer in service at that time. One possibility is that at least one Aurora was built but failed to live up to its design expectations. If so, the program may still be classified to conceal the significant amount of money that would have been invested in the program.[citation needed] In the 1996 book Skunk Works, Ben Rich, the former head of Lockheed's Skunk Works division, stated that the Aurora was simply the budgetary code name for the stealth bomber fly-off that resulted in the B-2 Spirit. The October 2006 issue of Popular Science has noted that the U.S. Air Force operations budget has a $9 billion hole, with no explanation as to where the money is headed.[dubious ] Also, unexplained booms similar to the 1990–1991 series have recently been felt in the San Diego area again, possibly meaning a resurgence of the Aurora project.[12] U.K. Ministry of Defence paper on "BLACK" aircraftIn May 2006, the British Ministry of Defence (MoD) released an extensive report on Unexplained Aerial Phenomena (UAPs) in the U.K. air defence area.[14] It was written by the Defence Intelligence Staff (DIS) in 2000 and was originally classified "SECRET UK eyes only". It is unusual, because it contains official comments on "black" programmes. One of the Working Papers is entitled ""BLACK" AND OTHER AIRCRAFT AS UAP EVENTS". It says, "it is acknowledged that some UAP sightings can be attributed to covert aircraft programmes". The report lists three "Western" programmes which might result in this — all of which appear to be American (right side image). The first — not surprisingly — is the SR-71. Programme 2 and Programme 3 are redacted from the report — even their names are withheld. Two photos or representations have also been removed from the file before release. Adjacent sections freely talk about the F-117, B-2 and F-22, and show photos of these aircraft; so these programmes appear to be something different. Elsewhere in the report the DIS says, "The projected (USAF) priority plan is to produce unpiloted air-breathing aircraft with a Mach 8-12 capability and transatmospheric vehicles as well as highly supersonic vehicles at Mach 4 to 6". The Mach 8-12 aircraft may refer to what the USAF announced as the Falcon Project in 2003 but this is the first official mention of a USAF plan for an Aurora-like Mach 4-6 vehicle. Bill Sweetman (Sweetman, Bill. (1993) Aurora: The Pentagon's Secret Hypersonic Spyplane) says the report shows the MoD "identified two separate U.S. 'Black' programmes that might have operated from the U.K." This caught the attention of the BBC Two's Newsnight (14/06/2006), who related the project to many other covert projects. Popular culture referencesFor a time in the 1990s, the Aurora aircraft became a touchstone for every "cool" technology then under development. Soon it was appearing on the cover of various magazines such as Popular Science, and for some time was considered to "obviously exist" because the SR-71 had been retired and it was popularly believed that another aircraft was needed to fill the role. The Testors company produced a model kit based on designs popularized in the press. Other companies also got into the business. Estes Industries made a model rocket kit, and Galoob made a Micro Machines toy version of the theoretical aircraft. The Aurora's status as a mysterious, fantastic and state-of-the-art aircraft has earned itself a place in popular aviation fiction. Here are some appearances of the aircraft in books, TV series, films, video games and flight sims: Books
Television
Films
Games & flight simsGames often assign the bombing or interception role to the Aurora in addition to (or instead of) reconnaissance.
The UI-4054 Aurora in Ace Combat 3: Electrosphere
Speculative specificationsAll specs are from http://aerospaceweb.org/aircraft/recon/aurora/ and are speculative only. General characteristics
Performance
Fuel types
Other equipmentSee also
Literature
References and notes
Further readingNews reports:
External linksGeneral information
Miscellaneous
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Mercedes Car
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