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.

Observers saw bright disc hovering and fluttering in the air. It descended and rose thru a vertical distance of 50 to 100 ft for some 5 seconds and while at the top of an ascent it suddenly swooped to the NE at tremendous speed, traveled some 200 ft and disappeared into the clear air - appeared to "melt into thin air" as a result of the tremendous speed. Appeared approximately 3 ft in dia x 3 or 4 inches in thickness from observers' viewpoint - and estimated as considerably greater in size as witnesses were some 2 or 3 miles from the object.

witnesses: Steve Herrmann and Karl Herrmann.