U.S. Air Force Analysis of Flying Objects in the United States, 1-100

This U.S. Air Force compilation, released by the U.S. Department of War, holds numbered checklists and survey sheets for flying object incidents 1 through 100. It covers sightings by officers, test pilots and civilians at Muroc Army Air Field on 7 and 8 July 1947, and sightings by Portland, Oregon police on 4 July 1947. It also includes fireballs seen over California, Nevada and Oregon on 30 December 1947, a Houston fireball, and Finnish reports from January 1948.

From the source:Release of 2026-06-12 Incident: United States. 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.

Object traveled in a southeast direction at an estimated height of 10,000 ft or more and at a speed in excess of any aircraft he had ever seen. It was under observation for approx 60 seconds during which time it traveled over 3/4 of the visible sky. No definite color or shape could be determined. The object appeared to roll from side to side three times, and one side reflected the sun strongly from its surface while the other gave no reflection. He thought the size about that of a 0-54. He states that during the time the object completed the roll it became very difficult to see and almost disappeared. No sound could be attributed to the aircraft.