Documents / Official release
This U.S. Department of War file, undated, holds checklist summaries of incidents 1 to 100 of unidentified flying objects reported in 1947 and early 1948. The first entries cover sightings of silver discs and spheres by officers and staff at Muroc Army Air Field on 7 and 8 July 1947. Next come the Portland, Oregon police reports of 4 July, a United Air Lines crew near Emmett, Idaho, and a set of 30 December flame and explosion reports from California and Nevada. The file ends with two Finnish sightings.
From the source:Release of 2026-05-08 Incident: N/A, N/A. NARA Record Group 38, catalogue id 143685. Each of these incident summaries includes a "Check-List - Unidentified Flying Objects" that contains details about the incident. Many summaries also include witness lists or statements and other narrative reports or descriptions.
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## RESTRICTED Savage stated that he realized that the object was not a conventional aircraft when it was at a 45° angle from him. It appeared elliptical and as it moved closer it seemed perfectly round and flat. It had no appearance of being spherical and had a ratio of diameter to the thickness of approximately 10 to 1, appearing thicker in the center. He judged the altitude to be between 10,000 to 18,000 ft and the object left no trailing effects. The bulk seemed to be that of 6 B-29's at an altitude of approximately the same height. The speed was 3 times that of a jet-propelled aircraft. There were no protrusions and there was no noise altho he thought he detected a swishing sound "like the rushing of air" after this object had passed him. The sound was not loud and did not last very long. He did not know if it was his imagination or expectation. The color appeared frosty white at all times. The object appeared to diminish in size and speed as it moved away in a direction of 350° to the north. Savage was sure that the object was not a meteor and it was his opinion that it was radically built and power - possibly atomic.
Official release, from the pursue collection. 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. 209 pages are in the text index: search them above, or from the library's search.