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.
“Hill”8 pages
Read from the scan by GLM-OCR; expect the odd misread word.
## CONFIDENTIAL
Object was shaped like a broad short propeller approximately 6 to 8 ft long, each blade approximately 2 feet wide and approximately one foot thick with cups on upper side of blades. It appeared aluminum and shiny in color. Traveled approximately 25 to 30 MPH. It was sighted just above the trees at approximately a 30 ft altitude in bank to the left of approx 20 $ ^{\circ} $ and appeared in a slight descent. There was no discernible sound and no exhaust trail.
NOTE: Truck had just started across bridge (see drwg) when object was sighted directly ahead above the trees. Witnesses stopped on the other side of the cantilever bridge but could not relocate object.
Search by Lt John E. Hoskins, Base PIO, and Lt Russell J. Carey, Jr. Base Intel Off. (331st AFBU) Res Tng Stout Fld. did not produce any result. However the area in which it was believed to have fallen is densely wooded with many hills and valleys. See diagram attached. 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.