Documents / Official release
This U.S. Department of War file collects Project Sign era checklists and incident summary sheets for incidents 101 to 172. The largest item is the 18 February 1948 explosion over Norcatur, Kansas. For it the file gathers witness statements, speculative letters from Norman G. Markham, and Dr. Lincoln LaPaz's view that it was a genuine meteorite fall with curious aspects. Other entries cover B-29 crews, a two-decked wingless object over the Netherlands, a Turkish rocket report, a Moscow sighting, and George Gorman's 1 October 1948 Fargo encounter.
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.
## CONFIDENTIAL Object observed at altitude of about 2000-3000 on NE-SW heading. It appeared to be some 8 inches in diameter and gave off a silvery brilliantreflection. It oscillated from a horizontal plane to a vertical plane at a very rapid pace. Estimated speed: about 250-300 MPH -(traveled some 500 feet in 1 or 2 seconds No sound could be heard nor were there any trails of any kind. NOTE: This sighting may have been the reflection of sun from wings of these aircraft. At the approximate time of the sighting a number of aircraft were flying in the local area.
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. 178 pages are in the text index: search them above, or from the library's search.