Within Surrey UFOs
Was the 1950 Guildford Disc Ever Solved?
Stan Hubbard's 1950 report links Surrey skies to early RAF-era UFO scrutiny and the limits of witness confidence.
On this page
- What Hubbard and RAF personnel reported
- How the Flying Saucer Working Party judged it
- Why the case still matters for Surrey
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Introduction
The 1950 Farnborough-Guildford disc case is one of the most useful early UFO episodes for understanding Surrey’s place in the British “flying saucer” record. It was not a simple local rumour: the key witness, Flight Lieutenant Stan Hubbard, was an experienced RAF test pilot at the Royal Aircraft Establishment at Farnborough, and the second sighting was reportedly shared by several RAF personnel looking south towards Guildford and the Farnham area. Yet the official Flying Saucer Working Party judged the case severely, arguing that the witnesses had probably misread ordinary aircraft or been affected by expectation. The case therefore matters less as proof of an extraordinary craft than as a revealing clash between trained witness testimony and official doubt at the start of Britain’s Cold War UFO scrutiny. [National Archives]cdn.nationalarchives.gov.ukNational Archives Layout 1National Archives Layout 1
Why this Hampshire airfield belongs in Surrey’s UFO story
Farnborough itself is in Hampshire, and the Royal Aircraft Establishment was based there as a major aerospace research and experimental establishment. That matters, because the case begins on a highly aviation-aware site rather than in an isolated rural lane. But the reported direction of the second object points directly into Surrey’s UFO geography: Hubbard said he saw the object to the south of the airfield, “towards Guildford”, and later placed the apparent manoeuvring roughly over the Farnham area. [Discovery]discovery.nationalarchives.gov.ukOpen source on nationalarchives.gov.uk.
That cross-border setting is important for a Surrey page. Guildford and Farnham sit within the Surrey frame used by local history and mapping, while Farnborough’s airfield environment belongs just over the county edge. The case is therefore best treated as a Surrey-linked aviation sighting rather than a Surrey-only incident. Its value lies precisely in that overlap: Surrey skies, Hampshire aviation infrastructure, RAF witnesses, and a Ministry of Defence inquiry all meet in one compact early-Cold-War episode. Surrey County Council’s own boundary guidance warns that Surrey research can be complicated by changing administrative boundaries, though this particular case is simpler: Farnborough is across the Hampshire border, while Guildford and Farnham are the Surrey-facing sky directions that make the report relevant here. [Surrey County Council]surreycc.gov.ukOpen source on surreycc.gov.uk.
What Hubbard and RAF personnel reported
The first sighting, as set out in David Clarke’s National Archives extract from The UFO Files, took place on a clear summer morning in mid-August 1950. Hubbard was walking across the Farnborough airfield when he heard what he later described as an unusual humming sound. Looking towards Basingstoke, he saw an object that he compared to the edge-on view of a discus, rocking slightly while maintaining a straight approach. He described a light grey or mother-of-pearl appearance, a blurred reflective surface, tiny sparkling lights around the edge, and a strong ozone smell. He estimated, with caution, that it might have been roughly 700 to 1,000 feet above ground, perhaps around 100 feet across, and travelling very fast. [National Archives+2National Archives]cdn.nationalarchives.gov.ukNational Archives Layout 1National Archives Layout 1
Those details are striking, but they also show the built-in weakness of the report. Hubbard himself admitted that without identifiable features it was difficult to judge size, height and speed with confidence. That caveat is central. Many UFO cases become more dramatic when rough impressions are later treated as measured data. Here, the most careful reading is that Hubbard reported a vivid close-range impression, not a tracked or instrument-confirmed aircraft performance. [National Archives]cdn.nationalarchives.gov.ukNational Archives Layout 1National Archives Layout 1
The second sighting came on 5 September 1950, when Hubbard was on the watch-tower with five other RAF airmen waiting for a display by the Hawker P.1081. He spotted an object to the south, towards Guildford, and the group reportedly watched what the official report called a flat, light pearl-coloured disc about the apparent size of a shirt button. Hubbard said it repeatedly fluttered in a hovering mode, swooped away at high speed, stopped abruptly, and returned to a fluttering hover. He placed the apparent performance eight to ten miles south of the airfield, over the Farnham area, and said the observation lasted about ten minutes while the group grew to more than a dozen RAF personnel. [National Archives+2National Archives]cdn.nationalarchives.gov.ukNational Archives Layout 1National Archives Layout 1
On paper, the second incident looks stronger because it involved multiple RAF personnel. In practice, it is also more vulnerable to distance and expectation. The object was much smaller in apparent size, apparently seen at range, and no camera or binocular confirmation was obtained. The official report later treated this second sighting not as independent reinforcement, but as a case in which Hubbard’s earlier report may have shaped how others interpreted something ordinary at the edge of visibility. [National Archives]cdn.nationalarchives.gov.ukNational Archives Layout 1National Archives Layout 1
How the Flying Saucer Working Party judged it
The Flying Saucer Working Party was not a local police inquiry or a newspaper exercise. It was a small Ministry of Defence intelligence group set up in 1950 under the Directorate of Scientific Intelligence and the Joint Technical Intelligence Committee. The National Archives research guide says Sir Henry Tizard, the MoD’s Chief Scientific Adviser and a major figure in wartime radar development, believed flying saucer reports should not simply be dismissed without investigation. The group’s terms included reviewing available evidence, examining British reports, reporting as necessary, and keeping in touch with American assessments. [National Archives]cdn.nationalarchives.gov.ukNational Archives Research Notes 6National Archives Research Notes 6
That background cuts both ways. On one hand, Hubbard’s report was taken seriously enough to be investigated quickly by intelligence officers. On the other, the Working Party was already operating in a climate where “flying saucers” were treated as a Cold War nuisance: potentially important if they represented hostile technology, but also dangerous if false alarms distracted defence systems. The National Archives guide says the group worked in secrecy, reviewed reports passed by RAF Fighter Command, and questioned test pilots from Farnborough who had reported aerial phenomena. [National Archives]cdn.nationalarchives.gov.ukNational Archives Research Notes 6National Archives Research Notes 6
The official judgement on Hubbard’s first sighting was blunt. The Working Party accepted that he was an experienced test pilot who honestly described what he believed he saw. But it argued that an unconventional aircraft of exceptional speed, flying at no great altitude on a fine summer morning over a “populous and air-minded” district such as Farnborough, should have attracted more than one observer. Its conclusion was that Hubbard had either experienced an optical illusion or seen a normal aircraft and misjudged its shape and speed. [National Archives]cdn.nationalarchives.gov.ukNational Archives Layout 1National Archives Layout 1
The second sighting was also discounted. The Working Party said it had no doubt that a flying object of some kind had been seen, but again found it hard to accept that an unconventional aircraft could manoeuvre for some time over a populated area without wider notice. It concluded that the officers probably saw normal aircraft manoeuvring at extreme visual range and were influenced by the earlier Hubbard report into treating the sighting as abnormal. [National Archives]cdn.nationalarchives.gov.ukNational Archives Layout 1National Archives Layout 1
The Working Party’s reasoning was not based on a direct identification of a specific aircraft, flight log or radar track. Instead, it was an argument from probability and human perception: trained observers can still misjudge unfamiliar visual cues, and a dramatic aerial event over Farnborough and the Guildford-Farnham district should have produced a broader paper trail. That is a legitimate doubt, but not the same thing as a complete solution. It weakens the extraordinary claim without proving exactly what was seen. [National Archives]cdn.nationalarchives.gov.ukNational Archives Layout 1National Archives Layout 1
The strongest evidence and the weakest links
The best evidence in the case is the quality and setting of the witnesses. Hubbard was not a casual observer with no aviation background; he was a test pilot at one of Britain’s most important aerospace sites. The second report involved other RAF personnel and took place in a context where aircraft recognition mattered. David Clarke, who researched the case through the National Archives material, later included RAF Farnborough in his personal list of notable British UFO cases, describing it as a close-range sighting followed by a multi-witness report investigated by the MoD. [National Archives]cdn.nationalarchives.gov.ukNational Archives Layout 1National Archives Layout 1
The weakest links are equally clear. There was no photograph, no recovered material, no publicly available radar confirmation, and no independent civilian wave from Guildford, Farnham or the surrounding district that matches the dramatic account. The second sighting’s apparent manoeuvres depend on judging the motion of a small distant object against the sky, which is notoriously difficult without range data. The Working Party’s central objection — that such a performance should have been widely noticed in an aviation-conscious area — remains one of the strongest sceptical points. [National Archives]cdn.nationalarchives.gov.ukNational Archives Layout 1National Archives Layout 1
The case is also shaped by later memory. Clarke’s published account includes Hubbard’s recollections from a 2002 interview, long after the 1950 events and after the Working Party report had been found. That does not make the testimony worthless, but it means readers should separate the contemporaneous official file from later retrospective description. The release of the secret report strengthened the historical importance of the case by proving that the MoD had examined it seriously, but it did not add the kind of physical or instrumental evidence that would resolve the sighting. [National Archives]cdn.nationalarchives.gov.ukNational Archives Layout 1National Archives Layout 1
Was the 1950 Guildford disc ever solved?
The fairest answer is: not in the narrow sense of identifying a particular aircraft, balloon, meteorological effect or hoax. The official explanation was not a neat debunking with a named culprit. It was a sceptical judgement that Hubbard and the other RAF personnel probably misperceived normal aircraft, with the second sighting influenced by the first. That leaves the case officially explained in policy terms, but not solved in the satisfying forensic sense many readers expect. [National Archives]cdn.nationalarchives.gov.ukNational Archives Layout 1National Archives Layout 1
This distinction matters. “Unexplained” does not automatically mean extraordinary, and “officially dismissed” does not automatically mean fully identified. The Farnborough-Guildford case sits in the awkward middle. It has better-than-usual witnesses and an unusually important official context, but the evidence still depends on visual impressions, estimated speed and distance, and the absence of corroborating physical data. In Surrey UFO history, that makes it a strong case for studying how reports were handled, rather than a strong case for claiming an unknown craft crossed the county. [National Archives]cdn.nationalarchives.gov.ukNational Archives Research Notes 6National Archives Research Notes 6
Why the case still matters for Surrey
The case matters because it shows how early British UFO investigation worked before the subject settled into later popular culture. In 1950, the MoD was not merely answering public letters; it was quietly assessing whether flying saucer reports had defence significance. The National Archives guide states that the Working Party’s 1951 final report concluded that flying saucers did not exist and recommended no further investigation unless material evidence became available. It also says those sceptical conclusions set the template for later British UFO policy, even though renewed sightings in 1952 forced the Air Ministry to resume monitoring reports. [National Archives]cdn.nationalarchives.gov.ukNational Archives Research Notes 6National Archives Research Notes 6
For Surrey, the Farnborough-Guildford disc is a reminder that county UFO history often follows flight paths, sight lines and institutional networks rather than neat boundaries. The reported object was seen from Hampshire, apparently towards Guildford and over the Farnham area; the investigation belonged to national defence intelligence; and the interpretation turned on aviation knowledge as much as local geography. That makes it one of the county’s most instructive edge cases: not a confirmed mystery craft, but a well-documented example of how credible witnesses, official secrecy and sceptical analysis could collide above the Surrey-Hampshire border. [National Archives+2Surrey County Council]cdn.nationalarchives.gov.ukNational Archives Layout 1National Archives Layout 1
Amazon book picks
Further Reading
Books and field guides related to Was the 1950 Guildford Disc Ever Solved?. Use these as the next step if you want deeper reading beyond the article.
The UFO Files
Covers the Stan Hubbard Farnborough/Guildford disc sightings and the Flying Saucer Working Party investigation central to the page.
UFOs
Explores the evidential value of trained military and aviation witnesses, a key issue in the Hubbard case.
The Flying Saucers are Real
Provides period context for the early-1950s flying saucer debate that surrounded cases like the Guildford disc incident.
Need to Know
Examines military UFO reports and official investigations, echoing the Flying Saucer Working Party themes.
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Endnotes
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Source: cdn.nationalarchives.gov.uk
Title: National Archives Layout 1
Link: https://cdn.nationalarchives.gov.uk/documents/the-ufo-files-extract.pdf -
Source: cdn.nationalarchives.gov.uk
Title: National Archives Research Notes 6
Link: https://cdn.nationalarchives.gov.uk/documents/aug-2011-research-guide.pdf -
Source: discovery.nationalarchives.gov.uk
Link: https://discovery.nationalarchives.gov.uk/details/c/F262525 -
Source: surreycc.gov.uk
Link: https://www.surreycc.gov.uk/culture-and-leisure/history-centre/researchers/guides/administrative-boundaries -
Source: drdavidclarke.co.uk
Title: flying saucer working party
Link: https://drdavidclarke.co.uk/national-archives-ufo-files-7/flying-saucer-working-party/ -
Source: cdn.nationalarchives.gov.uk
Title: briefing guide 12 07 12
Link: https://cdn.nationalarchives.gov.uk/documents/briefing-guide-12-07-12.pdf -
Source: ianridpath.com
Title: flying saucer working party
Link: https://www.ianridpath.com/ufo/flying%20saucer%20working%20party.pdf -
Source: legislation.gov.uk
Link: https://www.legislation.gov.uk/uksi/1991/2494/made -
Source: Wikipedia
Title: Flying Saucer Working Party
Link: https://en.wikipedia.org/wiki/Flying_Saucer_Working_Party -
Source: Wikipedia
Title: Royal Aircraft Establishment
Link: https://en.wikipedia.org/wiki/Royal_Aircraft_Establishment -
Source: Wikipedia
Link: https://en.wikipedia.org/wiki/Surrey -
Source: farnboroughcentrifuge.org.uk
Title: Royal Aircraft Establishment
Link: https://farnboroughcentrifuge.org.uk/rae -
Source: britannica.com
Link: https://www.britannica.com/place/Surrey-county-England -
Source: kids.kiddle.co
Title: Flying Saucer Working Party
Link: https://kids.kiddle.co/Flying_Saucer_Working_Party
Additional References
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Source: youtube.com
Title: New UFO Files From UK Government
Link: https://www.youtube.com/watch?v=yGxftZwdWsMSource snippet
Paranormal Into The Night | 1950 Egg Shape UFO | 1950 Airline Pilot UFO Sighting...
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Source: youtube.com
Link: https://www.youtube.com/watch?v=62tr8fZ-02QSource snippet
New UFO Files From UK Government - Expert Highlights | Video...
Published: May 2008
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Source: gbmaps.com
Link: https://www.gbmaps.com/free-county-maps/Surrey.php -
Source: facebook.com
Link: https://www.facebook.com/MetroUK/posts/the-british-military-thought-there-was-basis-in-fact-to-ufo-sightings-/1324212449736221/ -
Source: facebook.com
Link: https://www.facebook.com/groups/Godalmingcommunity/posts/4108842129402077/ -
Source: ianridpath.com
Link: https://www.ianridpath.com/ufo/ukgwp.html -
Source: beamsinvestigations.org
Link: https://www.beamsinvestigations.org/1950%20Farnborough%2C%20Hampshire%2C%20flying%20saucer%20sighting%20made%20by%20several%20highly%20trained%20airmen.htm -
Source: youtube.com
Link: https://www.youtube.com/watch?v=WVwguA4OmksSource snippet
UFO file release February 2010...
Published: February 2010
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Source: youtube.com
Link: https://www.youtube.com/watch?v=KyuAFHXTRAESource snippet
UFO file release May 2008 Part 1 (audio with slides)...
Published: May 2008
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Source: academia.edu
Title: UFOs and Intelligence A Timeline By George M Eberhart
Link: https://www.academia.edu/43868466/UFOs_and_Intelligence_A_Timeline_By_George_M_Eberhart
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