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Project Blue Book – Secret UFO files

project-blue-bookProject Blue Book was one of a series of systematic studies of Unidentified flying objects (UFOs) conducted by the United States Air Force (U.S.A.F.). The staffs of Project Blue Book was assigned to carry out three main functions:

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1. To try to find an explanation for all reported sightings of UFOs;

2. To determine whether theUFOs posed any security threat to the United States; and

3. To determine if UFOs exhibited any advanced technology that the United States could utilize.

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Thousands of UFO reports were collected, analyzed and filed, which concluded there was nothing anomalous about any UFOs, Project Blue Book was ordered shut down in December 1969. This project was the last publicly known UFO research project led by the USAF. But what do US governments really know about UFOs? Certainly some conspiracy theorists have suggested that the United States government actually has a close relationship with alien visitors, and provides them with ground bases. One of the areas is said to be under the water of the western Atlantic. Other theories propose that extraterrestrial beings are allegedly abducting law abiding US citizens in return for technological secrets.

On June 24, 1947, when civilian pilot Kenneth Arnold sighted nine discs near Mount Rainier in the state of Washington and described the motion of the unidentified flying objects as looking like “a saucer skipping across the water,” the Boise, Idaho, businessman inadvertently coined a term that would become known in most languages of the world, “flying saucers.” The U.S. Air Force immediately denied that they had any such craft, and at the same time officially debunked Arnold’s claim of having spotted unidentified flying objects. Donald H. Menzel, Professor of Astrophysics at Harvard, who became an unyielding saucer-skeptic and debunker, said that Arnold had been fooled by the tilting snow clouds or dust haze reflected by the sun. Arnold, however, stuck fast to his story, and the item made the front page of newspapers across the nation.

For UFOlogists, it was the birth of an era. During the period June through December 1947 there was no specific organization responsible for investigating and evaluating UFO reports. At this time everyone had an expert opinion. Even within the military structure, there were those who expressed their own feelings and beliefs as to what UFOs actually represented. The wide news coverage of public reports of “flying discs or saucers” created sufficient concern at high military echelons to authorize the Air Material Command (AMC) to conduct a preliminary investigation into these reports. Early belief was that the objects reported were of aircraft more advanced than those possessed by the U.S. Armed Forces. A letter (September 23, 1947) from Lt. General Twining of AMC to the commanding general of the Army Air Forces expressed the opinion that there was sufficient substance in the reports to warrant a detailed study.

On December 30, 1947, a letter from the chief of staff directed AMC to establish a project whose purpose was to collect, collate, evaluate, and disseminate all information concerning UFO sightings and phenomena in the atmosphere to those interested agencies. The project was assigned the code name “Sign.” The responsibility for “Project Sign” was delegated to the Air Technical Intelligence Center, which was then part of the AMC. In February of 1949 “Project Sign” completed its evaluations of the 243 UFO reports that had been submitted to the project. The report concluded that: “No definite and conclusive evidence is yet available that would prove or disprove the existence of these UFOs as real aircraft of unknown and unconventional configuration.”

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“Project Sign” was changed to “Project Grudge” on December 16, 1948, at the request of the director of Research and Development. Project Grudge completed its evaluations of 244 reports in August 1949. The conclusions of the Grudge reports were that the evaluations of reports of UFOs to date had demonstrated that “these flying objects constitute no threat to the security of the United States.” Grudge also concluded that reports of UFOs were the result of misinterpretations of conventional objects, a mild form of mass hysteria or war nerves, and individuals who sought to perpetrate a hoax or seek publicity.

Project Grudge also recommended that the investigation and study of reports of UFOs be reduced in scope. Air force investigation of UFOs continued on a reduced scale, and in December 1951 the Air Force entered into a contract with a private industrial organization for another detailed study of the UFO cases on file. The report, which was completed March 17, 1954, is commonly referred to as Special Report Number 14. Reports one through 13 were progress reports dealing with administration. Special Report Number 14 reduced and evaluated all UFO data held in air force files. Basically, the same conclusions were reached that had been noted in both the preceding Sign and Grudge reports.

It was during the early 1950s that the national interest in reported sightings increased tremendously. With the growing volume of reports, a Scientific Advisory Panel on UFOs was established in late 1952. At a meeting held during January 14–18, 1953, all available data was examined. Conclusions and recommendations of this panel were published in a report and made public. The panel concluded that UFOs did not threaten the national security of the United States and recommended that the aura of mystery attached to the project be removed.

In March of 1952 Project Grudge became known as Project Blue Book. From this time to its conclusion in 1969, the project concerned itself with investigation of sightings, evaluation of the data, and release of information to proper news media through the Secretary of the Air Force, Office of Information (SAFOI). It was a scheme designed to show the public there were no secrets in the US’s official investigation of alien craft. This ‘openness’ was merely a front, and it was actually made a crime equal to spying for military officers to reveal details of UFOs to unauthorised people. In reality, Blue Book only reported cases that were guaranteed to be found as hoaxes or mistaken identity.

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Blue Book officers were stationed at every air force base in the nation. They were responsible for investigating all reported sightings and for getting the reports into Blue Book headquarters at Wright-Patterson Air Force Base. The bulk of the investigations, as interpreted by field officers, led Blue Book officials to decide that most people did not see extraterrestrial spacecraft, but bright stars, balloons, satellites, comets, fireballs, conventional aircraft, moving clouds, vapor trails, missiles, reflections, mirages, searchlights, birds, kites, spurious radar indications, fireworks, or flares.

One of the experts who worked as a scientific consultant on the project was Josef Allan Hynek. He revealed that any sightings reported by people under 18 years of age were automatically ignored, and other incidents would only be published if they could be rationalised. In total, Blue Book investigated 15,000 reports of UFOs, many of them still not explained, and Hynek himself experienced something of a conversion. He became an informed believer, and coined the term ‘close encounter’.

For more than two Decades, Dr. J. Allen Hynek, served as an astronomical consultant to Project Sign and Project Blue Book, had been teaching astronomy at Ohio State University in Columbus, which is not far from Dayton, where Wright-Patterson Air Force Base, the home of Project Blue Book, was located. When he entered the project, the government was trying desperately to determine whether it was the Martians or the Russians who were responsible for the elusive discs being tracked in the atmosphere over North America. The air force appealed to Hynek that they needed a competent astronomer to tell them which cases arose out of the misidentification of planets, stars, meteors, and so forth.

Hynek admitted later that he was certain that the UFO phenomenon was a result of postwar nerves, and he was certain that in a few years the whole strange business would be forgotten. He also prematurely concluded that the flying saucers were strictly an American fad. He never suspected that it would turn out to be a global phenomenon. But the famous sightings in Michigan in March and April 1967, the ones that got Dr. Hynek dubbed “Dr. Swamp Gas,” demonstrated to “Blue Book’s tame professor” that there was a “backlash of public sentiment.” For the first time, Hynek said, he became aware that “the tide was slowly turning.” Hynek said that two factions definitely existed in Project Blue Book.

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There were those individuals who were extremely concerned over the radar trackings and the close approaches made by UFOs to civilian and military aircraft. These investigators assumed that the pilots were being truthful and were not concocting weird tales. These open-minded Blue Book personnel wanted to check all the possibilities. But most of the top brass, Hynek commented, couldn’t understand for a split second why any of their colleagues would bother to take seriously the subject of UFOs. In what would become an often-quoted observation, Hynek said, “Scientists in the year 2066 may think us very naive in our denials.”

Britain has its own group of people similar to Hynek. Nick Pope was a civil servant who worked for the Ministry of Defence. His role was to respond to questions from the public about UFOs. During the course of his work, he uncovered enough fascinating information to write his own books about unexplained phenomenon. Other investigators believe what Pope has been privy too is merely the tip of the iceberg, and some quite extraordinary files concerning the issue of UFOs have been uncovered.

One collection entitled ‘UFO Policy’ features a six-page document from 1960 which states that any unauthorised information disclosures would be viewed as breaches of the Official Secrets Act. The Ministry of Defence official policy states that it does not investigate UFO sightings unless they are of ‘defence significance’. Despite impressive proof or terrifying witness accounts, the authorities at the Ministry of Defence continually rule that each incident has no importance to national security. At least that is the public position, and what happens behind the scenes is unknown.

Of the unexplained UFO incidents, the official statement is: “The description of the object or its motion cannot be correlated with any known object or phenomenon.” On the basis of Blue Book reports, therefore, the air force concluded:

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1. No UFO has ever given any indication of threat to the national security.
2. There is no evidence that UFOs represent technological developments or principles beyond present-day scientific knowledge.
3. There is no evidence that any UFOs are “extraterrestrial vehicles.”

The transfer of the responsibility of UFO research to the University of Colorado in 1969 served to terminate the air force’s official involvement in the UFO mystery, but the residue of suspicions and outright accusations of government cover-up and censorship has never been dissipated. By the time Project Blue Book ended, it had collected 12,618 UFO reports (other sources said over 13,000 sightings) and concluded that most of them were misidentifications of natural phenomena (clouds, stars, et cetera) or conventional aircraft. A few were considered hoaxes. 701 of the reports — about six percent — were classified as unknowns, defying detailed analysis.

The UFO reports were archived and are available under the Freedom of Information Act, but names and other personal information of all witnesses have been redacted. The American Constitution and Freedom of Information Act is designed to let the public know what is actually happening. In 1980, however, a group called ‘Citizens Against Unidentified Flying Objects Secrecy’ sued the National Security Agency. It wanted the NSA to open its files on 239 UFO incidents but the authorities argued that to do so would damage US national safety. In recent years a ruling changing the classification status of documents has meant many of these reports will finally be put in the public domain. One cannot help but feel that any truly amazing official papers that may cause public hysteria will be suppressed.

Though many accepted Blue Book’s final conclusions that there was nothing extraordinary about UFOs, critics — then and now — have charged that Blue Book, especially in its later years, was engaging in dubious research, or even perpetuating a cover up of UFO evidence. Some evidence suggests that not only did some UFO reports bypass Blue Book entirely, but that the U.S. Air Force continued collecting and studying UFO reports after Blue Book had been discontinued, despite official claims to the contrary. Are US governments hiding the truth from their people, or is there really nothing to report? It is a question to which we may never have a definite answer.

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Sources: The Most Strangest Mysteries, Encyclopedia of Unexplained and Unusual Things and Wikipedia

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Jake Carter

Jake Carter is a researcher and a prolific writer who has been fascinated by science and the unexplained since childhood. He is always eager to share his findings and insights with the readers of, a website he created in 2013.