Project Blue Book


Project Blue Book was the code name for the systematic study of unidentified flying objects by the United States Air Force from March 1952 to its termination on December 17, 1969. The project, headquartered at Wright-Patterson Air Force Base, Ohio, was initially directed by Captain Edward J. Ruppelt and followed projects of a similar nature such as Project Sign established in 1947, and Project Grudge in 1949. Project Blue Book had two goals, namely, to determine if UFOs were a threat to national security, and to scientifically analyze UFO-related data.
Thousands of UFO reports were collected, analyzed, and filed. As a result of the Condon Report, which concluded that the study of UFOs was unlikely to yield major scientific discoveries, and a review of the report by the National Academy of Sciences, Project Blue Book was terminated in 1969. The Air Force supplies the following summary of its investigations:
By the time Project Blue Book ended, it had collected 12,618 UFO reports, and concluded that most of them were misidentifications of natural phenomena or conventional aircraft. According to the National Reconnaissance Office a number of the reports could be explained by flights of the formerly secret reconnaissance planes U-2 and A-12. 701 reports were classified as unexplained, even after stringent 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.

Previous projects

Public USAF UFO studies were first initiated under Project Sign at the end of 1947, following many widely publicized UFO reports. Project Sign was initiated specifically at the request of General Nathan F. Twining, chief of the Air Force Materiel Command at Wright-Patterson Air Force Base. Wright-Patterson was also to be the home of Project Sign and all subsequent official USAF public investigations.
Project Sign was officially inconclusive regarding the cause of the sightings. However, according to U.S. Air Force Captain Edward J. Ruppelt, the first director of Project Blue Book, Sign's initial intelligence estimate — the so-called Estimate of the Situation — written in the late summer of 1948, concluded that the flying saucers were real craft, were not made by either the Soviet Union or United States, and were likely extraterrestrial in origin. This was subsequently rejected by Gen. Hoyt Vandenberg, U.S. Air Force Chief of Staff, citing a lack of physical proof. Vandenberg subsequently dismantled Project Sign.
Project Sign was succeeded at the end of 1948 by Project Grudge, which was criticized as having a debunking mandate. Ruppelt referred to the era of Project Grudge as the "dark ages" of early USAF UFO investigation. Grudge concluded that all UFOs were natural phenomena or other misinterpretations, although it also stated that 23 percent of the reports could not be explained.

Project Blue Book history

Captain Ruppelt era

According to Captain Edward J. Ruppelt, by the end of 1951, several high-ranking, very influential USAF generals were so dissatisfied with the state of Air Force UFO investigations that they dismantled Project Grudge and replaced it with Project Blue Book in March 1952. One of these men was Gen. Charles P. Cabell. Another important change came when General William Garland joined Cabell's staff; Garland thought the UFO question deserved serious scrutiny because he had witnessed a UFO.
The new name, Project Blue Book, was selected to refer to the blue booklets used for testing at some colleges and universities. The name was inspired, said Ruppelt, by the close attention that high-ranking officers were giving the new project; it felt as if the study of UFOs was as important as a college final exam. Blue Book was also upgraded in status from Project Grudge, with the creation of the Aerial Phenomenon Branch.
Ruppelt was the first head of the project. He was an experienced airman, having been decorated for his efforts with the Army Air Corps during World War II, and having afterward earned an aeronautics degree. He officially coined the term "Unidentified Flying Object", to replace the many terms the military had previously used; Ruppelt thought that "unidentified flying object" was a more neutral and accurate term. Ruppelt resigned from the Air Force some years later and wrote the book The Report on Unidentified Flying Objects, which described the study of UFOs by the United States Air Force from 1947 to 1955. American scientist Michael D. Swords wrote that "Ruppelt would lead the last genuine effort to analyze UFOs".
Ruppelt implemented a number of changes: He streamlined the manner in which UFOs were reported to military officials, partly in hopes of alleviating the stigma and ridicule associated with UFO witnesses. Ruppelt also ordered the development of a standard questionnaire for UFO witnesses, hoping to uncover data that could be subject to statistical analysis. He commissioned the Battelle Memorial Institute to create the questionnaire and computerize the data. Using case reports and the computerized data, Battelle then conducted a massive scientific and statistical study of all Air Force UFO cases, completed in 1954 and known as "Project Blue Book Special Report No. 14".
Knowing that factionalism had harmed the progress of Project Sign, Ruppelt did his best to avoid the kinds of open-ended speculation that had led to Sign's personnel being split among advocates and critics of the extraterrestrial UFO hypothesis. As Michael Hall writes, "Ruppelt not only took the job seriously but expected his staff to do so as well. If anyone under him either became too skeptical or too convinced of one particular theory, they soon found themselves off the project". In his book, Ruppelt reported that he fired three personnel very early in the project because they were either "too pro" or "too con" one hypothesis or another. Ruppelt sought the advice of many scientists and experts, and issued regular press releases.
Each U.S. Air Force Base had a Blue Book officer to collect UFO reports and forward them to Ruppelt. During most of Ruppelt's tenure, he and his team were authorized to interview any and all military personnel who witnessed UFOs and were not required to follow the chain of command. This unprecedented authority underlined the seriousness of Blue Book's investigation.
Under Ruppelt's direction, Blue Book investigated a number of well-known UFO cases, including the so-called Lubbock Lights, and a widely publicized 1952 radar/visual case over Washington, D.C. According to Jacques Vallée, Ruppelt started the trend, largely followed by later Blue Book investigations, of not giving serious consideration to numerous reports of UFO landings and/or interaction with purported UFO occupants.
Astronomer J. Allen Hynek was the scientific consultant of the project. He had been with Projects Sign and Grudge. He worked for the project up to its termination and initially created the categorization which has been extended and is known today as Close encounters. He was a pronounced skeptic when he started, but said that his feelings changed to a more wavering skepticism during the research, after encountering a minority of UFO reports he thought were unexplainable.
Ruppelt left Blue Book in February 1953 for a temporary reassignment. He returned a few months later to find his staff reduced from more than ten, to two subordinates. Frustrated, Ruppelt suggested that an Air Defense Command unit be charged with UFO investigations.

Robertson Panel

In July 1952, after a build-up of hundreds of sightings over the previous few months, a series of radar detections coincident with visual sightings were observed near the National Airport in Washington, D.C.
After much publicity, these sightings led the Central Intelligence Agency to establish a panel of scientists headed by H. P. Robertson, a physicist of the California Institute of Technology, which included various physicists, meteorologists, and engineers, and one astronomer. The Robertson Panel first met on January 14, 1953 in order to formulate a response to the overwhelming public interest in UFOs.
Ruppelt, Hynek, and others presented the best evidence, including movie footage, that had been collected by Blue Book. After spending 12 hours reviewing six years of data, the Robertson Panel concluded that most UFO reports had prosaic explanations and that all could be explained with further investigation, which they deemed not worth the effort.
In their final report, they stressed that low-grade, unverifiable UFO reports were overloading intelligence channels, with the risk of missing a genuine conventional threat to the U.S. Therefore, they recommended the Air Force de-emphasize the subject of UFOs and embark on a debunking campaign to lessen public interest. They suggested debunkery through the mass media, including Walt Disney Productions, and using psychologists, astronomers, and celebrities to ridicule the phenomenon and put forward prosaic explanations. Furthermore, civilian UFO groups "should be watched because of their potentially great influence on mass thinking... The apparent irresponsibility and the possible use of such groups for subversive purposes should be kept in mind."
It is the conclusion of many researchers that the Robertson Panel was recommending controlling public opinion through a program of official propaganda and spying. They also believe these recommendations helped shape Air Force policy regarding UFO study not only immediately afterward, but also into the present day. There is evidence that the Panel's recommendations were being carried out at least two decades after its conclusions were issued.
In December 1953, Joint Army-Navy-Air Force Regulation number 146 made it a crime for military personnel to discuss classified UFO reports with unauthorized persons. Violators faced up to two years in prison and/or fines of up to $10,000.