🇺🇸 USAF — Project Blue Book
In July 1963, a pilot and co-pilot in a T-29 at 18,000 feet observed a triangular object with rounded corners that appeared to remain nearly stationary in the sky. Despite the pilot's assertion that he had seen many balloons and was certain this was not one, the authorities classified it as such. The object stayed in the same position for five minutes, without changing its position or showing signs of maneuvering. The wind was blowing at 35 knots from the west-southwest, suggesting the object might simply be floating with the current. The estimated distance was one mile, and the object was drifting slowly, shrinking in size as it moved away.
The official report includes precise details such as the exact time of the sighting, the location, and weather conditions. Although the pilot insisted it was not a balloon, the lack of concrete evidence and the delayed receipt of the report led to the official conclusion that it was one. However, the pilot's testimony and the object's description suggest it could have been something unusual. The case was closed without a definitive resolution, but it remains an interesting example of how UFO reports were handled by air authorities at the time.