Project SIGN

Project SIGN was an Above Top Secret U.S. Government study of unidentified flying objects (UFOs) undertaken by the United States Air Force that was active from 1947 until 1949, mostly in response to the mass of public and military-related UFO sightings starting in June 1947.

Project SIGN was later replaced by Project GRUDGE.

The full files of Project SIGN were not declassified until 1961.

Operative-132's Recollections
While on a stakeout with FBI Agent Cooper in November 1952, Operative-132 revealed that he had previously worked on several Top-Secret military projects, specifically mentioning Project SIGN and Project GRUDGE. Because of his work on these projects, he was taken all over the country to conduct interviews and do research. Places he specifically mentioned was Fargo North Dakota, New Mexico, Lubbock Texas, and "even those Washington Nationals back in July", referring to the infamous July 1952 Washington D.C. UFO Sightings.

Despite revealing this information to Agent Cooper, when pressed for a story on the alleged 1947 Roswell UFO crash, O-132 laughed it off as swamp gas, temperature inversions, and/or a meteor shower.

Appearances

 * Diabolical Tales: Part I - Genesis of the Men From Within The Earth (mentioned only)

Behind The Scenes
Project SIGN, along with Project GRUDGE, were actual U.S. government top-secret studies about UFOs.

Project SIGN was started in January 1948 just as the United States Air Force became a separate branch from the U.S. Army. Starting with widespread news reporting on Kenneth Arnold's June 1947 sighting of multiple saucer-shaped craft near Mt. Rainer in Washington, both the public and the U.S. military started to worry that, if real, these craft could pose a serious threat to the national security of the United States.

Added to their suspicions was the fact that numerous UFO-related sightings had been taking place near U.S. military outposts, especially around locations related to atomic weapons.

Project SIGN was a branch of Air Technical Intelligence Center (ATIC) at Wright-Patterson Air Force Base, under the direction of Captain Robert R. Sneider.