Robert Coburn, Chester Grusinski, John Lawrence and Leon Treadwell witnessed UFOs over the USS FDR
Analysis Summary
Robert Coburn, Chester Grusinski, John Lawrence
Contact Experience Triad
Leon Treadwell
Contact Experience Triad
The Encounter
The experiencer was an Ensign on the USS Franklin D. Roosevelt during a shakedown cruise near Guantanamo Bay, Cuba, in late July or early August of 1952. While below deck, he and his friend noticed men running from the engine room and went to investigate. They observed a bright light in the sky that moved quickly, changed direction, and then disappeared. Other crew members also reported similar sightings over a ten-year period, but there were no records in the ship's logs. The experiencer expressed a desire to find other witnesses and mentioned feeling aggravated by the experience. He believes the sightings may be linked to the ship's nuclear capabilities and suspects a cover-up by the military.
Program Intelligence Analysis
The transcript details multiple UFO sightings by sailors aboard the USS Franklin D. Roosevelt during the 1950s, including encounters during Operation Mainbrace. It highlights the lack of official records and the potential military coverup surrounding these incidents.
Multiple sailors observed unidentified flying objects tracking the USS Franklin D. Roosevelt, with no official records documenting these sightings.
Vince
“We observed a bright light quite high in the sky; it looked like a star but was much brighter.”
Robert Coburn
Chester Grazinski
John Lawrence
Barry Greenwood
Leon Treadwell
“There was actual radar contact on these vehicles.”
Managed by: U.S. Navy
Naval maneuvers with allied forces
During a shakedown cruise near Gitmo, Cuba, in late July or early August of 1952, multiple sailors observed a bright light tracking their ship, which altered direction and accelerated at high speeds.
There were numerous UFO incidents reported during Operation Mainbrace in September 1952, including one involving a fighter jet being followed by an unidentified flying object.
Barry Greenwood collected photographs of UFOs taken from the USS Franklin D. Roosevelt during Operation Mainbrace, including a large spherical object observed on September 20, 1952.
Leon Treadwell witnessed a UFO encounter while on anchor watch in Rio de Janeiro, describing two ships with counter-rotating lights and a fireball dropping between them.
The USS Franklin D. Roosevelt was the only aircraft carrier at the time that had thermonuclear capability, which may have attracted UFO interest.
There is a belief that the U.S. military is covering up incidents of UFO sightings related to the USS Franklin D. Roosevelt.
Witnessed a bright light following the USS FDR during a shakedown cruise near Cuba.
Robert Coburn, Chester Grusinski, John Lawrence · First-PersonEncounter Context
Factual Detailsnear Gitmo, Cuba
Guantanamo Bay, cuba
Encounter Research Breakdown
Phenomenological AnalysisThe account provides a basic description of an observation made by the speaker, who identifies as an Ensign. However, the details are vague and lack corroboration or specific evidence, resulting in a low score.
The experiencer observed a bright light while on a naval ship during a shakedown cruise near Cuba.
“I saw a bright light and the forward of the bow on the right hand side”
bright light observed
The analysis found no relevant content for this section.
The encounter is unique due to the historical context of a naval shakedown cruise and the specific observation of a bright light.
Saw two ships with counter-rotating lights and a fireball dropping between them while on anchor watch in Rio de Janeiro.
Leon Treadwell · First-PersonEncounter Context
Factual Detailsflight deck of the USS Franklin D Roosevelt
united_states
listed as an unknown possible balloon but nobody knows where it came from
Encounter Research Breakdown
Phenomenological AnalysisThe account describes a specific event involving multiple witnesses and a photograph taken of a UAP, but lacks detailed corroboration and specific witness identities. The report indicates uncertainty about the object's nature, contributing to a moderate score.
The experiencer describes a group of people observing a large spherical object in the sky.
“he noticed a large spherical object hanging in the air”
The object accelerated and disappeared from view, leaving the observers puzzled.
“the object accelerated took off at high speed disappeared”
Large spherical object in the sky
The analysis found no relevant content for this section.
Five Observables (1/5)
A large spherical object was observed hanging in the air before it accelerated and disappeared.
The encounter involved a large spherical object observed by multiple witnesses on a naval ship, which accelerated and vanished, leaving behind confusion about its nature.
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Robert Coburn, Chester Grusinski, John Lawrence
First-Person
Contact Experience Triad
Leon Treadwell
First-Person