USS Nimitz Encounter
Over two weeks in November 2004, U.S. Navy radar tracked an unidentified object off the California coast that maneuvered in ways no known aircraft could match. The pilot who saw it up close has been on the record ever since.
What happened
For two weeks in November 2004, the USS Princeton — a Ticonderoga-class cruiser running with the Nimitz Carrier Strike Group off Baja California — kept getting radar returns it couldn't explain. The objects would drop from 80,000 feet to sea level in less than a second, then sit there. Or move at speeds the operators initially assumed were software glitches. After two weeks of this, the radar operators decided to put a pilot on one of them.
The pilot was Commander David Fravor, CO of VFA-41 (the "Black Aces"), flying an F/A-18F Super Hornet. He had a wingman, Lt. Cmdr. Jim Slaight. Two pilots, two backseat WSOs — four sets of trained-observer eyes.
What they saw, in Fravor's words on the record across multiple sworn statements: a smooth, white, oblong object roughly 40 feet long, hovering over a disturbance in the water about a mile across. No exhaust, no rotors, no wings. When Fravor descended to intercept, the object began mirroring his flight path — and then it accelerated to a position 60 miles away in well under a minute. By the time the carrier group's radar caught it again, it had relocated to a CAP (combat air patrol) point the operators had been using as a navigation reference. Whatever it was, it had been listening.
The FLIR footage
What made Nimitz unusual wasn't the sighting itself — pilots have been seeing things since 1947. It was the data trail. The Princeton's SPY-1 radar logs, the F/A-18s' AN/APG-73 radar tapes, and an FLIR recording from a follow-on flight by Lt. Cmdr. Chad Underwood — published years later as the "FLIR1" video — all corroborate each other independently.
FLIR1 leaked publicly in 2017 alongside two other clips (GIMBAL and GoFast). The Department of Defense formally confirmed the videos' authenticity in April 2020. That's the inflection point: not the sighting, but the government's decision to stop saying "we can't confirm or deny."
What the explanations don't explain
There are conventional explanations on offer. They each cover part of the encounter, none cover all of it:
- Sensor artifacts / parallax error. Possible for the FLIR clip taken alone — gimbal rotation can produce the illusion of object rotation. Doesn't explain the SPY-1 radar tracks or the visual encounter.
- Classified U.S. drone. Plausible in principle, but front-line Navy pilots don't generally encounter classified U.S. assets in their own training airspace without coordination. Also doesn't account for the 60g maneuvers.
- Foreign adversary aircraft. Same problem with the kinematic performance. Nothing publicly known about adversary capabilities in 2004 (or now) matches what was recorded.
- Atmospheric phenomena. Doesn't survive the radar evidence.
The honest answer remains the one the government landed on in 2020: we don't know what it was.
Why this case matters
Nimitz is the single best-documented military UAP encounter in the public record. The combination of corroborated sensor data, multiple trained observers, and on-the-record testimony from senior pilots is unique. Most UAP cases collapse under scrutiny when you ask for primary sources. Nimitz still has its primary sources, two decades later, and they haven't recanted.
It's also why every subsequent UAP disclosure — the 2017 New York Times story, the 2019 Navy reporting framework, the 2022 AARO office, the 2026 PURSUE program — traces back, one way or another, to what happened off the coast of Baja in November 2004.
U.S. Department of Defense
2020-04-27
Unidentified — videos confirmed authentic; phenomena unexplained
First formal Pentagon acknowledgment that the videos depict real, unidentified phenomena.
Metabunk (Mick West)
2019
Partially explained — FLIR1 gimbal artifact plausible; SPY-1 radar tracks not addressed
Notable skeptical analysis focused on the FLIR clip; does not resolve the broader case.
What was the USS Nimitz UAP encounter?
Over two weeks in November 2004, U.S. Navy radar tracked unidentified objects off Baja California, culminating in a close visual encounter on November 14 when Commander David Fravor of VFA-41 observed a Tic-Tac-shaped object roughly 40 feet long performing maneuvers no known aircraft could match. The FLIR1 video clip from a follow-on flight was declassified in 2017 and confirmed authentic by the Pentagon in 2020.
Has the U.S. government officially classified the Nimitz encounter?
Yes. On April 27, 2020, the Department of Defense formally confirmed the authenticity of the FLIR1, GIMBAL, and GoFast videos and stated that the phenomena they depict remain unidentified. This was the first formal Pentagon acknowledgment that the footage shows real, unexplained objects.
Who was the pilot in the Nimitz encounter?
Commander David Fravor, then Commanding Officer of Strike Fighter Squadron VFA-41 (the 'Black Aces'), flying an F/A-18F Super Hornet. He has been on the record about the encounter in multiple sworn statements, congressional testimony, and interviews since 2017.
What sensors recorded the Nimitz UAP?
Three independent sensor systems: the USS Princeton's SPY-1 radar (which tracked the objects for two weeks before the visual encounter), the F/A-18s' AN/APG-73 fire-control radars during the intercept, and the FLIR camera on a follow-on flight by Lt. Cmdr. Chad Underwood. The corroboration across systems is what makes this case unusually well-documented.