Project Blue Book Correspondence and Records — 1966-1967

This document collection comprises a series of official correspondence, sighting reports, and internal memoranda related to Project Blue Book, the United States Air Force's investigation into Unidentified Flying Objects (UFOs) during the mid-1960s. The records span from 1966 to 1967 and include communications between the Air Force and various civilians who reported sightings or submitted photographic evidence. A recurring theme in the correspondence is the Air Force's standard procedure for handling these reports: acknowledging receipt, noting that the provided information is insufficient for a comprehensive evaluation, and requesting that the observer complete FTD Form 164 to facilitate a formal investigation. The Air Force maintained a skeptical stance, explicitly stating in several letters that they had found no tangible evidence of extraterrestrial life and that UFOs were generally misinterpretations of natural phenomena or conventional objects. The collection includes specific case files, such as reports from the Philippines involving photographic analysis, and correspondence from individuals in the United States and abroad. The photographic analysis reports, specifically Report No. 65-44, detail the technical examination of images submitted by a civilian, concluding that the imagery was likely created through multiple exposures or other photographic techniques rather than capturing actual aerial phenomena. The documents also highlight the administrative burden of the project, with officials noting the high volume of inquiries and the necessity of standardizing responses. The correspondence reflects the Air Force's efforts to manage public interest while maintaining a scientific, albeit dismissive, approach to the reports, often citing the lack of essential data—such as maneuvers, flight characteristics, and duration—as the primary reason for their inability to provide definitive explanations.