See also: Investigation of UFO reports by the United States government
Project Grudge was intended to alleviate public anxiety over UFOs and persuade the public that UFOs constituted nothing unusual or extraordinary. UFO sightings were explained as conventional aircraft, balloons, stars, planets, meteors, optical illusions, solar reflections, or even "large hailstones." Project officials recommended that the project be reduced in scope because the very existence of Air Force official interest encouraged people to believe in UFOs and contributed to a "war hysteria" atmosphere. On 27 December 1949, the Air Force announced the termination of the project.1
Project Grudge issued its only formal report in August 1949. The report's conclusions included:
The "Recommendations" section suggested that Air Force personnel receive basic instruction in astronomical phenomena.
An article by Sidney Shallet appeared in two consecutive issues of the Saturday Evening Post (April 30 and May 7, 1949) and supported Project Grudge's assessment that UFO reports could be explained by mundane phenomena, and that hoaxes and crackpots played a prominent role in popularizing UFOs.2
Astronomer and ufologist J. Allen Hynek criticized Project Grudge, claiming that the project was "less science and more of a public relations campaign". Project Grudge also received criticism from former intelligence officer Edward J. Ruppelt, who was "convinced of the alien nature of UFOs and how he has seen the military and the U.S. government trying to discredit the extraterrestrial hypothesis". Both Hynek and Ruppelt claimed that Project Grudge was "as far from an objective, scientific examination of the phenomenon as one could get".3
Haines, Gerald K. "CIA's Role in the Study of UFOs, 1947–90". Defense Technical Information Center. Studies In Intelligence Vol. 01 No. 1, 1997: Central Intelligence Agency. Archived from the original on August 25, 2021. Retrieved 25 August 2021.{{cite journal}}: CS1 maint: location (link) https://apps.dtic.mil/sti/citations/ADA525986 ↩
Shallet, Sidney. "What You Can Believe About Flying Saucers". saturdayeveningpost.com. Saturday Evening Post. Retrieved 2021-08-24. https://www.saturdayeveningpost.com/reprints/what-you-can-believe-about-flying-saucers/ ↩
Barna William Donovan (2014). Conspiracy Films A Tour of Dark Places in the American Conscious. McFarland. p. 48. ISBN 978-0-7864-8615-1. 978-0-7864-8615-1 ↩