Project Blue Book Sighting Report — Springfield, Ohio, 29 October 1966

This document contains a Project Blue Book sighting report regarding an unidentified aerial phenomenon observed on October 29, 1966, in Springfield, Ohio. The witness, a civilian, reported observing a single object for approximately 10 seconds. The object was described as a semi-circle glow, similar to a candle flame, with a light yellowish-orange color. The witness noted that the object traveled diagonally upward into the sky until it disappeared from view. The observer explicitly stated that no sound was heard during the event. The report includes a sketch of the object's motion and appearance, noting a 'glowing plume.' The witness indicated that the object was larger than any falling star trail they had previously seen. The official conclusion recorded by the Air Force was 'Possible (AIRCRAFT WITH AFTERBURNER).' A follow-up letter dated October 31, 1966, signed by Major Hector Quintanilla, Jr., Chief of Project Blue Book, informed the witness that the information provided was insufficient for a full evaluation and requested that they complete an attached FTD Form 164 to provide further details.