Within Navy Videos
Did GOFAST Really Move That Fast?
GOFAST looks dramatic because camera motion and distance uncertainty can make a slower object seem to race over the sea.
On this page
- What the GOFAST clip appears to show
- How parallax changes perceived speed
- What the clip still cannot identify
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Introduction
The GOFAST video is one of the three US Navy UAP clips formally released by the Pentagon in 2020, and it has often been presented as evidence of an object racing just above the ocean at extraordinary speed. A closer examination of the aircraft’s own sensor data, however, suggests that the dramatic impression is not necessarily the reality. The leading conventional explanation is that the apparent high speed results largely from parallax—a visual effect created when a fast-moving observer tracks a more distant object from an angle. This does not identify what the object was, but it does challenge one of the video’s most widely repeated claims: that it was skimming the sea at impossible velocity. [Wikipedia]WikipediaPentagon UFO videosPentagon UFO videos
Within the broader story of the Pentagon UFO videos and their celebrity-driven media attention, GOFAST illustrates an important lesson. Official military footage can be authentic while still being open to competing interpretations of what the sensors actually recorded.
What the GOFAST clip appears to show
The publicly released infrared video shows an object being tracked by a US Navy fighter’s targeting pod. Cockpit audio captures the crew reacting as the tracking system locks onto the target, reinforcing the impression that something unusual has been found.
To many viewers, the object appears to streak across the surface of the ocean at remarkable speed. The combination of the aircraft’s infrared imagery, the moving water below and the excited pilot commentary naturally encourages the impression that the target is travelling only metres above the waves.
That visual impression became one of the video’s defining features in television documentaries, news coverage and online discussion. Yet the video itself provides only a two-dimensional view through a moving sensor. Without knowing the target’s actual distance, it is impossible to calculate its true speed simply by watching it move across the screen. [Wikipedia]WikipediaPentagon UFO videosPentagon UFO videos
How parallax changes perceived speed
Parallax is the apparent motion of an object caused by a change in the observer’s position rather than rapid movement of the object itself. Anyone looking sideways from a fast-moving train has experienced it: nearby trees seem to flash past, while distant hills appear almost stationary.
The GOFAST recording introduces several layers of geometry that complicate intuition:
- the Navy aircraft was travelling at high speed;
- the targeting pod continually adjusted to keep the object centred;
- the object’s distance was not visually obvious;
- the ocean provided a moving background that made the target appear close to the surface.
Together these factors can produce the illusion that the tracked object is moving far faster than it actually is.
Independent analysts demonstrated that if the object were considerably farther away than many viewers assumed, its apparent motion across the camera’s field of view could largely be explained by the jet’s own movement rather than extraordinary acceleration by the target itself. The object’s apparent race over the sea would then be mostly a perspective effect instead of evidence of exceptional performance. [PBS+2Wikipedia]pbs.org3 ways scientists use math to help debunk UFO videos | PBS…Semeter helped analyze one particular video called "GO FAST," where an o…
This explanation relies on ordinary geometry rather than special assumptions about the object’s identity. Whether the target was a balloon, a bird, debris or something else, the parallax effect would still occur if the viewing geometry were similar.
Why distance is the critical unknown
The key uncertainty in GOFAST is range.
A two-dimensional video records direction but not depth. Unless distance can be estimated accurately from sensor information or other measurements, calculating true speed becomes difficult. Two objects moving across the same angle of view can have dramatically different actual velocities depending on how far away they are.
Analysts have therefore focused on the telemetry displayed in the video—information such as aircraft attitude, targeting angles and tracking data—rather than relying solely on what the eye perceives. Using those measurements, several reconstructions concluded that the object was much higher above the ocean than casual viewing suggests. [PBS]pbs.org3 ways scientists use math to help debunk UFO videos | PBS…Semeter helped analyze one particular video called "GO FAST," where an o…
This illustrates a broader point about military sensor footage: visual intuition is often less reliable than geometric reconstruction.
What later official analysis found
The Pentagon’s All-domain Anomaly Resolution Office (AARO) later presented a detailed reconstruction of GOFAST using geospatial analysis and trigonometry.
According to AARO, the object was assessed with high confidence to be roughly 13,000 feet above the ocean, not skimming the waves, and its estimated ground speed was around 45 miles per hour. Under this interpretation, the dramatic appearance results primarily from parallax created by the fast-moving fighter aircraft rather than an object performing extraordinary manoeuvres. [DefenseScoop]defensescoop.comuap aaro findings go fast puerto rico mt etna objectsAnalysts used full-motion video, analysis software, 3D modeling, and “novel” speed and distance…
Importantly, AARO’s conclusion addressed the apparent speed, not necessarily the object’s precise identity. Explaining why something appears fast is different from determining exactly what it is.
What the clip still cannot identify
Even if the apparent speed is largely explained by parallax, GOFAST remains an unidentified object within the limits of the publicly available evidence.
The released footage does not provide enough information to determine conclusively whether the target was:
- a balloon or wind-driven object;
- a bird;
- airborne debris;
- a small aircraft or drone;
- another conventional object not identifiable from the available imagery.
The infrared image lacks sufficient detail for positive identification, and only a short segment of the encounter has been released publicly. As a result, resolving the speed question does not automatically resolve the identity question. [PBS]pbs.org3 ways scientists use math to help debunk UFO videos | PBS…Semeter helped analyze one particular video called "GO FAST," where an o…
This distinction is frequently lost in public debate. Some commentators interpret the parallax explanation as proving the entire incident was mundane, while others reject the speed analysis because the object remains unidentified. In reality, these are separate questions.
Why GOFAST remains an important case
GOFAST has become a useful case study because it demonstrates how convincing visual impressions can conflict with careful measurement. The video’s significance lies less in proving extraordinary flight characteristics than in showing the limits of interpreting military sensor footage without full contextual data.
Within the wider discussion of Pentagon UAP videos and their cultural impact, GOFAST also illustrates how dramatic imagery can become amplified through media coverage and celebrity interest before technical analysis reaches a broader audience. The clip remains authentic military footage of an object that has not been conclusively identified, but the strongest available geometric analyses indicate that its apparent extreme speed is most likely an illusion produced by parallax rather than evidence of impossible flight. [PBS+2DefenseScoop]pbs.org3 ways scientists use math to help debunk UFO videos | PBS…Semeter helped analyze one particular video called "GO FAST," where an o…
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Endnotes
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Source: Wikipedia
Title: Pentagon UFO videos
Link: https://en.wikipedia.org/wiki/Pentagon_UFO_videos -
Source: pbs.org
Link: https://www.pbs.org/newshour/science/3-ways-scientists-use-math-to-help-debunk-ufo-videosSource snippet
3 ways scientists use math to help debunk UFO videos | PBS...Semeter helped analyze one particular video called "GO FAST," where an o...
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Source: Wikipedia
Title: Mick West
Link: https://en.wikipedia.org/wiki/Mick_WestSource snippet
Mick WestMick West (born 1967) is an American science writer, debunker and retired video game programmer. He is the creator of the web...
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Source: defensescoop.com
Title: uap aaro findings go fast puerto rico mt etna objects
Link: https://defensescoop.com/2024/11/19/uap-aaro-findings-go-fast-puerto-rico-mt-etna-objects/Source snippet
Analysts used full-motion video, analysis software, 3D modeling, and “novel” speed and distance...
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Source: youtube.com
Link: https://www.youtube.com/watch?v=McVqKmUaaokSource snippet
Videos - [FLIR]({{ 'flir/' | relative_url }})... Dave Falch's video: • Video Support this...
Additional References
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Source: reddit.com
Link: https://www.reddit.com/r/UFOs/comments/1bfmuzz/for_those_who_dont_know_the_[gimbalSource snippet
For those who don't know, the Gimbal and GoFast videos...Gimbal is allegedly just a distant jet and GoFast is just a balloon seen with p...
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Source: reddit.com
Link: https://www.reddit.com/r/UFOs/comments/16iix64/nasas_gofast_analysis_says_object_going_40mph/Source snippet
NASA's GoFast Analysis says object going 40mph: r/UFOsThe video gives an impression of an object skimming above the ocean at a great vel...
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Source: skepticalinquirer.org
Link: https://skepticalinquirer.org/2020/06/pentagon-releases-old-ufo-videos-with-expected-results/Source snippet
Pentagon Releases Old 'UFO' Videos, with Expected ResultsScience writer Mick West collaborated with others to offer exhaustive analyses o...
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Source: youtube.com
Link: https://www.youtube.com/watch?v=mvsU4p0GsasSource snippet
Breaking Down UAP Footage with the Head of The...What's really going on with UAPs? Neil deGrasse Tyson and co-host Paul Mecurio get to t...
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Source: youtube.com
Link: https://www.youtube.com/channel/UCvhLmEQFo_72rjcnyjxfR_w/videosSource snippet
Scientific Coalition for UAP StudiesThe Scientific Coalition for UAP Studies (SCU) is a coalition of scientists, researchers, and profess...
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Source: commons.wikimedia.org
Title: File:Go Fast Official USG Footage of UAP for Public Release.webm
Link: https://commons.wikimedia.org/wiki/File%3AGo_Fast_Official_USG_Footage_of_UAP_for_Public_Release.webmSource snippet
wikimedia.orgFile:Go Fast Official USG Footage of UAP for Public...This footage was captured by a U.S. Navy F/A-18 Super Hornet using th...
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Source: reddit.com
Link: https://www.reddit.com/r/UFOs/comments/1gv8xak/aaro_has_resolved_the_go_fast_uap/Source snippet
Wind speed at that altitude was 60 knots. Object moved in a relatively straight...Read more...
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Source: nypost.com
Title: pentagon claims to debunk famous gofast ufo radar video
Link: https://nypost.com/2024/11/20/us-news/pentagon-claims-to-debunk-famous-gofast-ufo-radar-video/Source snippet
Pentagon claims to debunk famous 'GOFAST' UFO radar...20 Nov 2024 — The Pentagon announced they solved one of the most famous UFO videos...
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Source: theguardian.com
Title: I study UFOs – and I don’t believe the alien hype
Link: https://www.theguardian.com/commentisfree/2021/jun/11/i-study-ufos-and-i-dont-believe-the-alien-hype-heres-whySource snippet
Here's why11 Jun 2021 — One video, codenamed “Gimbal”, seems particularly impressive: it shows what looks like an actual flying saucer sk...
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Source: vice.com
Title: the skeptics guide to the pentagons ufo videos
Link: https://www.vice.com/en/article/the-skeptics-guide-to-the-pentagons-ufo-videos/Source snippet
The Skeptic's Guide to the Pentagon's UFO Videos6 May 2020 — Both West and Shermer said they allow for the possibility that what [pilots]({{ 'pilots/' | relative_url }}) a...
Published: May 2020
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