Unidentified flying object

Definition and stakes

Lyle Gifford Boyd,  The World of Flying Saucers: A Scientific Examination of a Major Myth of the Space Age (1963)

“ In military parlance the phrase “unidentified flying object,” abbreviated as UFO, is used to indicate any air-borne phenomenon that fails to identify itself to, or to be identified by, trained witnesses on the ground or in the air who are using visual or radar methods of observation. Created in the early days of the saucer era, the term UFO is unfortunately misleading because it seems to imply that the unknown is a solid material object. ”
Source: Gutenberg

Edward James Ruppelt,  The Report on Unidentified Flying Objects (1956)

“ The UFO had evidently slowed down from the speed that the radar had measured, 525 miles an hour, until it was hovering almost completely motionless.
As soon as the pilots were on the ground, the magazine of film from the gun camera was rushed to the photo lab and developed. The photos showed only a round, indistinct blob—no details—but they were proof that some type of unidentified flying object had been in the air north of Dayton.
”
Source: Wikisource

Edward James Ruppelt,  The Report on Unidentified Flying Objects (1956)

“ In the summer of 1952 a United States Air Force F-86 jet interceptor shot at a flying saucer.
This fact, like so many others that make up the full flying saucer story, has never before been told.
I know the full story about flying saucers and I know that it has never before been told because I organized and was chief of the Air Force’s Project Blue Book, the special project set up to investi¬ gate and analyze unidentified flying object, or UFO, reports. (UFO is the official term that I created to replace the words “flying saucers.”)
”
Source: Wikisource

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