Project 10073 Record Card and Spot Intelligence Report — Longmeadow, Massachusetts, 17 April 1952

This document consists of a Project 10073 Record Card and a formal Spot Intelligence Report regarding an Unidentified Aerial Phenomena sighting in Longmeadow, Massachusetts, on 17 April 1952. Two witnesses, both engineers, observed a single object for approximately 40 minutes starting at 2030 hours. The witnesses described the object as round and deep orange in color, noting that it appeared four times as bright as a star. The object performed erratic maneuvers, including rapid climbs and dives, and was estimated to be traveling at speeds exceeding 600 miles per hour at an altitude of 15,000 to 20,000 feet. The witnesses reported that the object changed shape as it altered its altitude. Despite the duration of the sighting, no sound was heard, and no radar contact was established. The weather was described as clear and cloudless. The witnesses, one of whom was a chemical engineer and the other an executive, were interviewed by special agents on 22 April 1952. Both witnesses denied having technical training in aeronautics or astronomy that would influence their observations, though one witness mentioned having recently read an article on unconventional aircraft in Life magazine. The report concludes that there is no physical evidence associated with the sighting and that no further action is contemplated by the Directorate of Special Investigations. The document was originally classified as unclassified and was later downgraded and declassified in accordance with Air Force regulations.