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Unidentified Flying Objects: Project "Grudge" (Technical Report No. 102-AC 49/15-100)

US Air Force, Air Materiel Command · 1949-08 · 413 pages · text by OCR, confidence 98%

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Incident No. 62 — 8 September 1947, 2230–2300 hours, Logan, Utah. A man and his wife, together with five other unidentified people, observed five groups each of 35–60 small objects, yellowish-white in color, flying several thousand feet in the air at a high rate of speed. The weather was cloudy. AIC Opinion: From the limited evidence submitted, it is practically impossible to formulate a conclusion. Fast motion could be attributed to closeness rather than to true linear distance. In an atmosphere of darkness, any impression may be erroneous. Ground lights reflected from moving, low-hanging clouds, themselves not visible, could readily account for this report. Light colored birds are another possibility.

Cases discussed

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Report, from the classic collection. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model (mean confidence 98%); expect the odd misread word. 413 pages are in the text index: search them above, or from the library's search.