The Navy, Army, and Air Force each kept a separate file on “flying discs” as early as 1948 and 1949. Newly released, the three documents show a national security system treating the phenomenon as a routine administrative matter, long before the public decided whether to laugh or be afraid.
The Aliens editors
This story was put together by our editors from the original documents. Every quote, date and figure comes from the source files listed further down the page.
On March 24, 1949, a short, dry request landed in the offices of the Plans and Operations Division of the U.S. Army General Staff. It asked the Intelligence Division to make one simple determination: Were reports of “flying saucers” caused by natural phenomena or by the actions of a foreign power? No hysteria. No denial. Just an administrative question, with a file number and a chain of signatures.
When people talk about the early history of unidentified objects, they tend to start with the witnesses: pilots, police officers, people who looked up at the sky. But there’s a quieter layer, only now becoming available to read: the bureaucrats. The officers who saw nothing themselves but had to decide what to do about what others had seen.
A batch of documents released by the U.S. Department of War includes three especially early files, one from each service: a 1948 Navy memo, a 1949 Army evaluation study, and a massive Air Force file titled “Analysis of Flying Objects in the United States.” Together, they paint a clear picture: by 1948, before the public had settled on a common vocabulary, three separate services were keeping orderly files on the phenomenon.
The earliest of the three documents is a 1948 memo circulated by the commander of the Fifth Naval District. It cites a confidential letter from the Chief of Naval Operations on one subject: “flying discs.”
What stands out about the memo is not panic but its methodical language. According to the letter, the Air Force director of intelligence had informed the Navy Department that a pattern seemed to be emerging: a new wave of sightings was about to begin.
The assessment led to a practical order. All Navy stations were instructed to report every sighting of “flying discs” or other unidentified aerial objects to the nearest Air Force command and the naval district’s intelligence office. In a sentence that’s easy to miss, the memo asks for something else, too: “It is also desired that photographic evidence of the phenomenon be obtained whenever possible.”
In other words, by 1948 the Navy wasn’t relying on eyewitness accounts alone. It wanted a system for rapid reporting and photographic evidence. That’s not how an organization behaves when it dismisses reports. It’s how one behaves when it’s trying to collect data.
If the Navy memo lays out the policy, the Air Force file contains the raw material. “Analysis of Flying Objects in the United States” is a huge collection of standardized forms titled “Checklist—Unidentified Flying Objects,” each with 26 fields: location, witness, occupation, altitude, speed, direction, color, shape, sound, exhaust trail, and manner of disappearance.
The first section documents the July 1947 wave. It includes the familiar clusters: silver, disc-shaped objects over Muroc Army Air Field in California; three flat discs seen by two traffic officers in Portland, Oregon, who were also private pilots; and the Goodman Field incident at Fort Knox, Kentucky, when P-51s were directed toward a round, white object.
That last incident is the clearest example of how the forms weren’t written to reassure anyone. According to the radio logs, the object stayed ahead of and above the pursuing aircraft, climbed to about 20,000 feet, and accelerated to about 360 miles per hour. The pilots simply couldn’t close the distance.
The file’s second section jumps to 1948 and incidents numbered 101 through 172. The language is more cautious, the investigations more systematic, and mundane explanations appear alongside cases that remained open.
Many reports were closed as meteors, balloons, flares, or birds. But not all. In Montgomery, Alabama, on July 24, 1948, two Eastern Airlines pilots described a jet-like object with no wings, two rows of illuminated windows, and a trail of flame.
Not every case received the same level of scrutiny. When a P-47 pilot over the Philippines reported a silver, crescent-shaped object that made a sharp turn and disappeared in about five seconds, the Far East Air Force’s official assessment was “probably a bird.” Pairing that explanation with such a fast-moving object is exactly the kind of discrepancy worth noticing, not because the explanation is necessarily wrong, but because it isn’t especially convincing.
Back to the dry request from March 1949. The Intelligence Division returned its assessment that same month, and its conclusion was clear on two points. Investigations conducted by a special project group under Air Materiel Command at Wright-Patterson Air Force Base, with help from the RAND Corporation, attributed most sightings to weather balloons, cosmic research equipment, balloons, and meteors. One case was a daytime sighting of the planet Venus.
That’s the sentence it’s easy to miss. The Army didn’t say, “There’s nothing there.” It said something much more specific: It wasn’t the Russians, and it wasn’t us. Those two denials together make the reports that remained open all the more interesting, because the two most convenient explanations had been taken off the table.
Here’s an almost comic human detail. On April 3, 1949, just days after the secret study had reached the opposite conclusion, broadcaster Walter Winchell declared on national radio that flying saucers were now known for certain to be guided missiles launched from Russia.
The military didn’t ignore the claim. The Plans and Operations Division formally asked the Intelligence Division to verify Winchell’s statement. In other words, the same division that had just read an assessment concluding that no foreign power was involved was asked to investigate a public claim that said precisely the opposite.
It’s easy to look at these documents and search them for proof one way or the other. But they weren’t written to prove anything. They were written to manage the issue. That’s precisely why they’re worth reading.
Read in sequence, the documents reveal a consistency that’s hard to ignore. The Navy asked for fast reports and photographs. The Air Force filled out hundreds of forms and left some cases open. The Army issued two careful denials, then had to investigate a radio broadcaster who contradicted them on the air. None of the services behaved as if it were convinced there was nothing there.
And that may be the one thing we can say with confidence: in 1948 and 1949, long before the public had decided what to think, the U.S. national security system already had the phenomenon in an open file.
Sources: “Flying Discs” memo from the Fifth Naval District (1948); “Evaluation of the Flying Saucers Phenomenon,” Intelligence Division, U.S. Army (March 1949); “Analysis of Flying Objects in the United States,” U.S. Air Force, incidents 1–172 (1947–1948). Released June 12, 2026.
