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.
## RESTRICTED CHECK-LIST - UNIDENTIFIED FLYING OBJECTS 1. Date Between 15th & 20th Aug 7 INCIDENT: 135 2. Time 2130 MST ocation Rapid City AF Base, Weaver, S.D. 4. Name of observer Maj Elmer H. Hammer, J. (AO-46014) 5. Occupation of observer 6. Address of observer Intel Officer 28th Bombardment Group (VR) Rapid City AFBase Weaver, S. D. 7. Place of observation Weaver, S. D. 8. Number of objects 12 (Approx) 9. Distance of object from observer 4 miles 10. Time in sight N/S 11. Altitude 10,000 ft to approx 6,000 ft. 12. Speed 500 MPH+ 13. Direction of flight Approached first from NW then turn to right and disappeared in SW 14. Tactics tight diamond-shaped formation 15. Sound no noise heard 16. Size Length: 100+ ft estimate 17. Color Yellowish-white - brilliant 18. Shape Elliptical 19. Odor detected N/S 20. Apparent construction N/S 21. Exhaust trails None 22. Weather conditions Clear, no clouds, stars visible, wind, calm visibility 30+ 24. Sketches or photographs Sketches 25. Manner of disappearance Disappeared on a SW heading 26. Remarks There appears to be minor discrepancies as to speed and altitude in the report given verbally to Glasebrook and 1 tr to this Hq f/Maj Hammer
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.