Declassified UFO / UAP Document
Project 10073 Record Card — Miles City, Montana, 11 December 1957
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AI-Generated Summary
A US Naval Reserve officer reported a high-speed aerial object over Miles City, Montana, in December 1957. The military investigation concluded the object was likely a high-speed aircraft.
On December 11, 1957, at 1540Z, an unidentified aerial phenomenon was observed over Miles City, Montana. The witness, a Lieutenant Commander in the USNRES and an ex-naval aviator with 2,000 hours of flight experience during World War II, described the object as resembling a brilliant white star, approximately the size of a dime. The object was observed for three minutes, during which it maintained a northward course at an estimated speed of 1,000 miles per hour with no apparent change in altitude. The witness noted that the object exhibited a smooth side-to-side shifting motion before decreasing in size and eventually disappearing. The sighting occurred in clear weather conditions with unlimited visibility. The report, filed by the 982D AC&W Squadron, was delayed in its submission to the Air Technical Intelligence Center until December 18, 1957. The official conclusion reached by the evaluating authorities was that the object was likely a high-speed aircraft operating at a high altitude.
RESEMBLED A STAR, DIME, BRIL-LAINT STAR COLOR, BUT MORE WHITE
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Official Assessment
Probably a high speed a/c flying at a high altitude.
The object was identified as a probable high-speed aircraft flying at a high altitude, based on the observer's report.