What was Project Blue Book?

Tom DeMary – 18 February 2005

Where can I find more background information about the reports?

The NICAP website (www.nicap.org) contains commentaries on many PBB reports. The Project 1947 website (www.project1947.com) also contains much useful material. Reading the administrative files of the NARA microfilm can be useful, particularly the Project Grudge report. (A bound copy of the Grudge Report is available from FUFOR.) The Report on Unidentified Flying Objects (1956) by PBB’s first chief, Capt. Edward J. Ruppelt, is a history of PBB and a summary of Ruppelt’s years there. Dr. J. Allen Hynek discusses his years as a consultant and many PBB reports in The Hynek UFO Report (1977). The introduction to Brad Sparks’ Comprehensive Catalog of 1500 Project Blue Book Unknowns (downloadable from www.CUFOS.org) gives a concise history of PBB with more detail than is given here.

While the Air Force had primary responsibility for UFO investigations, other original documents concerning UFOs exist in the files of other agencies: Federal Bureau of Investigations, Central Intelligence Agency, Department of Energy (Atomic Energy Commission), Defense Intelligence Agency, National Security Agency, the State Department, US Army, US Navy, and other agencies of the government.

Within the Air Force there are large collections of UFO documents, including UFO reports not in Project Blue Book files: Air Force HQ intelligence correspondence files (about 2000 pages), Project Sign/Grudge correspondence files (about 900 pages), Public Information files (1948–April 1952), and 4th Air Force UFO files (1947–1950). A few UFO documents also exist in other Air Force agencies’ files. Early Air Force unit histories often discuss UFO reports made by or to that Air Force activity, and in some cases, a copy of the UFO report is contained in the unit history.

Some of these documents have been released to the public and are available on government websites, others have been released as the result of Freedom of Information Act requests, and still others have been found or wait to be found in various official archives, in some cases in very unlikely places.

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