Project 10073 Record: Sighting Report - Nampa, Idaho, 30 July 1949

This document is a formal investigation report regarding an unidentified aerial object sighting that occurred on July 30, 1949, near Nampa, Idaho. The primary witness, an Assistant Upland Game Biologist for the State of Idaho, reported observing a brilliant, delta-shaped object while scanning fields for pheasants. The witness described the object as having a unique metallic appearance, with a pale blue and rose color. According to the witness, the object was traveling west at an estimated speed exceeding 800 mph at an altitude of approximately 800 to 1,000 feet. The object performed a sharp U-turn, appearing to be upside down during its return flight to the east, before fading from sight. The witness, who possesses a background in engineering and aviation, noted that the object made no sound and left no exhaust. He compared the disappearance of the object to the edge of a knife blade turning away from view. The witness immediately reported the incident to the Nampa Free Press. The investigation was conducted by Special Agent James W. DeValk of the 5th District Office of Special Investigations, who interviewed the witness and compiled the necessary documentation, including an 'Essential Elements of Information' form. The report was forwarded to the Commanding General at Wright-Patterson Air Force Base under the subject of 'Project Grudge Special Inquiry.' Despite the witness's firm belief that the object was not a conventional aircraft, the official conclusion recorded on the Project 10073 form is simply 'AIRCRAFT.' The document includes the original statement from the witness, the investigative report, and the administrative correspondence between the 5th District OSI and Air Materiel Command.