box Incident Summaries 101-172

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.

## ESTRICTE

This target was contacted on the air search radar at 1500 GCT on 18 April 48. The first contact was made at 6500 yards and was tracked to 18,000 yards giving a velocity of approximately 30 m.p.h. The area in which the target was contacted was thoroughly search visually and there were no clouds nor weather fronts in said area. There were no target indications on the surface radar. The target strength was S5 fading at 18,000 yards.

## RESTRICTED