🇺🇸 USAF — Project Blue Book
In June 1952, a pilot and co-pilot of a B-25 reported the sighting of an unidentified object while flying at an altitude of approximately 11,500 feet. The object appeared suddenly in the clear sky, at a distance of 250-300 feet from the aircraft, and was simultaneously observed by both crew members. They described it as a rectangular object, about 6 by 4 feet in size, made of metal. The object crossed the flight path of the plane, from a point roughly at 2 o'clock to 4 o'clock, before disappearing behind the right wing of the aircraft. There were no weather phenomena to explain the sighting, and no physical evidence or photographs were available.
The observation was reported to Kirtland Airways, who confirmed no weather balloons had been launched since that morning. The pilot promised to submit a written report upon landing. Despite the detailed description, the object could not be identified, and no interception actions were taken. This case is another example of UFO reports from that era, where witnesses were trained professionals and the description lacked conventional explanations.