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This NICAP-hosted compilation of USAF Project Blue Book records covers the radar-visual intercept of 1 August 1952 near Bellefontaine, Ohio. It holds a press clipping, the ATIC case summary, correspondence between the Air Technical Intelligence Center and the 664th AC&W Squadron, and a completed radar data sheet. Two F-86s from Wright-Patterson took gun camera film of the object. The early evaluation lists it as unknown, but other pages attribute the sighting to a jet on radar and a research balloon seen by the pilots.
“Headquarters”1 page
Read from the scan by GLM-OCR; expect the odd misread word.
1 August 1952 Bellefountain, Ohio An unidentified object was observed on radar, and fighters were vectored in for an attempt to identify the unidentified radar return. Fighters were able to see the object, but were not able to get near it because of the altitude of the object. The object is observed in the sighting has positively been identified as a type of upper air research balloon. This object actually consisted of four balloons attached to one "load". This load weighed approximately 500 pounds, and consisted of metal measuring devices that would give a radar return. total measuring devices that would give a radar return.
Document, cited by the archive. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 15 pages are in the text index: search them above, or from the library's search.