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.
Read from the scan by GLM-OCR; expect the odd misread word.
## RESTRICTED Witness was getting out of his car when he observed one disc flying in a Southwesterly direction over Portland. Disc was aluminum in color and traveled at terrific speed - faster than any flying object witness had ever seen - It left no vapor trail or smoke trail. Estimated altitude approx 30,000 ft. Thought the disc was definitely some type of aircraft but could not give further description as speed made observation difficult. No sound was heard from the flying object. He thought it appeared radio-controlled because the disc could change direction at a 90° angle without difficulty. ESTRICTED
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.