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
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## RESTRICTED An ONL plane enroute from Aalberg, Denmark, to Oslo, Norway, sighted a projectile coming from the southeast, passing along the Swedish Coast and disappearing over Norway. The missile was at 20,000 ft and disappeared over the horizon in four seconds. It emitted a bluish-green flame but left no trail in the sky. The projectile seemed to follow the earth's surface. NOTE: Similar missiles have been observed at Rjuken, Norway & Finse, Norway. In this connection, it is of interest to know that heavy water is currently being produced in Rjuken. Observers: A Norwegian pilot and his co-pilot. The pilot served with the Royal Norwegian AF in Great Britain. ## RESTRICTED
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.