Declassified UFO / UAP Document
Sighting Report — Rock Springs, Wyoming, 29 December 1953
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AI-Generated Summary
A C-47 aircrew reported two high-speed objects near Rock Springs, Wyoming, on December 29, 1953. The objects exhibited rapid color changes and high-speed maneuvers, but the military evaluation deemed the data insufficient for a firm conclusion.
This document is a military sighting report concerning an unidentified aerial phenomenon observed on December 29, 1953, approximately 62 miles east of Rock Springs, Wyoming. The report was generated by the 29th Air Division and forwarded to the Air Technical Intelligence Center at Wright-Patterson Air Force Base. The primary witness was Captain David Porter Jr., who was operating a C-47 aircraft at the time of the sighting. According to the report, the crew observed two objects in formation, separated by a distance of four miles. The objects were described as appearing like a 'match head' in size, changing color from red to white, similar to heated metal, or potentially blinking lights. The crew estimated the speed of the objects to be between 1,500 and 2,000 mph. Notably, the objects left no exhaust or trails. The observation lasted for seven minutes, during which the objects eventually departed, with one moving north and the other ascending straight up. Weather conditions at the time were reported as clear with no cloud cover. The official evaluation concluded that there was insufficient data for a firm assessment. The report notes a conflict regarding the duration and speed of the objects and suggests that while another aircraft might have been the cause, the provided data was too vague to reach a definitive conclusion.
Obj changed color from red to white like heated. Might have been a blinking light.
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Official Assessment
INSUFFICIENT DATA FOR EVALUATION. Duration and speed in conflict. Possible that other a/c was the cause, however data presented is too vague for firm eval.
The objects were observed by a C-47 aircrew. They appeared as red lights that changed to white, similar to heated metal, or possibly blinking lights. They were in formation four miles apart and exhibited high speeds estimated between 1500 and 2000 mph. No exhaust or trails were observed.
Witnesses
- DAVID PORTER JRCAPTFORBES AFB KAN