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. 152 -- 31 July 1948, 0825 Hours, Indianapolis, Indiana. A man and his wife saw an object shaped like a cymbal, lusterless white in color, at an altitude of 2000 ft. The object moved across the sky to the east at approximately 1800 MPH, on a level course and shimmering in the sun, giving the appearance of spinning. It was twenty feet in diameter and six to eight feet high in the center. There was no sound or exhaust. AMC Opinion: This object could conceivably be the same at different angles as that seen in Incident 151, although all the remaining evidence is widely divergent. No satisfactory conclusion can be drawn.

Cases discussed

The Ghost Rockets (Spökraketer), Scandinavia, 1946 1946
summer of 1946... mysterious aerial objects in Sweden, the "ghost rockets"
The Kenneth Arnold Sighting 1947
report of Kenneth Arnold of Boise, Idaho... Incident Number 17
The 1947 Flying Disc Craze: America's First Flying Saucer Wave 1947
Within the month following Arnold's report, the number of incidents reached a peak
The Green Fireballs over New Mexico 1948
"green fireballs" reported in the general vicinity of Albuquerque, New Mexico
The Fukuoka F-61 Black Widow Radar-Visual Intercept 1948
Incident No. 183... Fukuoka Area, Japan. Airborne radar observer in F-61

About this file

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.