Project 10073 Record Card — Cleveland, Ohio, April 20, 1961

This document is a Project 10073 record card and associated technical information sheets regarding a UFO sighting reported by a civilian in Cleveland, Ohio, on April 20, 1961. The witness, a 30-year-old male, was sitting at a drawing table talking to a fellow designer when he observed an object through a window. He described the object as oval-shaped and 'dirty blue' in color. According to the witness, the object appeared at approximately 30 degrees above the horizon, approached from the east, and then made a sharp turn to its left at about 20 degrees above the horizon before disappearing behind a building. The witness noted that the object appeared unstable and distorted, with its underside appearing as if it were receiving strong heat radiation, similar to heat waves in the air. He explicitly stated that the object made no sound. The witness completed the U.S. Air Force technical information questionnaire on August 21, 1961, after having previously written to the Aero Space Technical Intelligence Center at Wright-Patterson Field on July 19, 1961, to request the proper reporting procedures. The official conclusion recorded on the project card suggests that the phenomenon was likely light material, such as paper, caught in city air currents. The report notes that the object's size and distance were difficult to determine, and that the observed distortion could be attributed to the window glass through which the witness was viewing the event.