Within The Object
How big was the diamond object?
The object's apparent size depended on rough comparisons and later estimates, not on direct measurement at the scene.
On this page
- Cash's water tower comparison
- The 130 foot distance estimate problem
- How size changes with assumed range
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Introduction
How big was the diamond-shaped object reported in the Cash–Landrum incident? The short answer is that nobody knows. The most frequently repeated estimate was Betty Cash’s comparison of the object to the Dayton water tower, but this was a visual analogy rather than a measurement. The commonly cited figure that the object was about 130 feet from the witnesses is similarly uncertain, having emerged from later reconstructions rather than from any instrumented observation at the scene. These two estimates became crucial because they determine whether the object appears enormous and extraordinary or merely modest in size and misjudged under difficult viewing conditions. The debate over the object’s dimensions is therefore less about geometry than about witness perception, distance estimation, and the reliability of size judgments made at night under intense glare. [Wikipedia]WikipediaCash–Landrum incidentCash–Landrum incident
Cash’s water-tower comparison
The most influential size description came from Betty Cash, who said the object was about the size of the Dayton water tower. Later summaries and retellings repeated this comparison so often that it became part of the standard description of the case. Jerome Clark’s account, widely quoted in UFO literature, described the object as a huge upright diamond “about the size of the Dayton water tower” with flattened ends and blue lights around its centre. [Wikipedia]WikipediaCash–Landrum incidentCash–Landrum incident
The comparison sounds precise, but it was not. Cash was not reporting a measured dimension. She was using a familiar local landmark to communicate scale. Water towers themselves vary greatly in height and diameter, and witnesses typically remember them as large vertical structures rather than as objects with known dimensions. Modern references often note that a typical municipal water tower may stand around 120–130 feet tall, though actual examples can be substantially smaller or larger. [Wikipedia]WikipediaWater towerMarch 19, 2002 — Shooter's Hill water tower is a local landmark in London, United Kingdom…. A standard water tower typically has a hei…
This creates an immediate ambiguity:
- Was Cash comparing the object’s height to the overall height of the tower?
- Was she comparing its bulk or visual presence?
- Was she thinking of the tank portion rather than the entire structure?
- Was she describing an impression of size rather than a literal dimension?
The surviving testimony does not resolve these questions. As a result, the water-tower analogy provides only a rough order of magnitude, not a dependable measurement. [Wikipedia]WikipediaCash–Landrum incidentCash–Landrum incident
The 130-foot distance estimate problem
The object is often described as having been approximately 130 feet from the witnesses. This figure appears repeatedly in later discussions of the case and has become almost as famous as the water-tower comparison itself. However, the number was not obtained by range-finding equipment, radar, or any contemporaneous survey. It appears to have originated from later attempts by investigators and witnesses to reconstruct the encounter location and estimate the separation between the car and the object. [Wikipedia]WikipediaCash–Landrum incidentCash–Landrum incident
The uncertainty surrounding the encounter site makes the estimate especially problematic. Skeptical investigators later argued that the precise location of the sighting was never firmly established and that reconstructions relied heavily on witness memory. If the location itself was uncertain, then any distance derived from that location necessarily carries additional uncertainty. [Wikipedia]WikipediaCash–Landrum incidentCash–Landrum incident
Night-time observation further complicates matters. Human beings are generally poor at judging the distance of unfamiliar luminous objects in darkness. The witnesses reported extraordinary brightness and intense glare, conditions that can obscure edges and remove many of the visual cues normally used to estimate range. Cash herself reportedly stated that the brightness made it difficult to see details clearly. [Wikipedia]WikipediaCash–Landrum incidentCash–Landrum incident
In practical terms, a witness who believes an object is 130 feet away could be substantially mistaken without realising it. The error does not need to be enormous to produce large differences in the estimated size of the object.
How size changes with assumed range
The importance of distance uncertainty becomes obvious when considering how perceived size works.
A witness does not directly observe an object’s true dimensions. Instead, the eye observes an angular size: how much of the visual field the object occupies. To convert that into a physical size, the observer must also know the distance. If the distance estimate changes, the size estimate changes proportionally.
For example:
- If an object appears to have the angular width of a large water tower and is assumed to be 130 feet away, it may seem enormous.
- If the same visual appearance came from an object twice as far away, the implied physical size would roughly double.
- If the object were actually much closer than assumed, its true size would be correspondingly smaller.
This is why discussions of the Cash–Landrum object often become circular. Advocates of a very large craft tend to accept the 130-foot range estimate and then calculate a large object. Critics question the range estimate itself, which immediately undermines confidence in any resulting size calculation.
The problem becomes even more significant because the witnesses described a brilliant light source. Bright objects at night frequently appear larger than they really are because glare creates a halo effect around the source. The apparent boundaries of the object can become difficult to distinguish from the surrounding illumination. Under such conditions, estimates of both distance and size become less reliable. [Wikipedia]WikipediaCash–Landrum incidentCash–Landrum incident
Why the size estimate matters to explanations
The water-tower comparison plays an important role in evaluating explanations for the diamond-shaped object.
If the object was genuinely comparable in size to a municipal water tower and only about 130 feet away, then it would represent a very large airborne structure occupying a substantial portion of the road scene. Such a description is difficult to reconcile with ordinary aircraft lights or distant celestial objects. [Wikipedia]WikipediaCash–Landrum incidentCash–Landrum incident
However, if the range estimate was significantly wrong, the situation changes. A smaller object at a closer distance or a larger luminous source at a greater distance could potentially generate a similar visual impression. The uncertainty does not prove any particular alternative explanation, but it weakens arguments that depend on a precisely known size.
This is one reason why sceptical analyses have often focused on witness perception rather than solely on the object’s reported shape. The central question is not merely whether the witnesses saw something unusual. It is whether the available testimony allows investigators to determine the object’s dimensions with confidence. Decades later, the answer remains no. [Wikipedia]WikipediaCash–Landrum incidentCash–Landrum incident
What can actually be concluded?
The strongest conclusion supported by the evidence is surprisingly modest. Betty Cash consistently described the object as being roughly comparable to a water tower, indicating that she perceived it as very large. Yet neither the water-tower comparison nor the often-cited 130-foot separation can be treated as a precise measurement. Both are retrospective estimates shaped by memory, reconstruction, and difficult viewing conditions. [Wikipedia]WikipediaCash–Landrum incidentCash–Landrum incident
As a result, the reported size of the diamond-shaped object remains one of the most uncertain elements of the Cash–Landrum case. The witnesses clearly believed they were observing something large and close, but the exact dimensions depend heavily on assumptions about distance that cannot now be independently verified. [Wikipedia]WikipediaCash–Landrum incidentCash–Landrum incident
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Endnotes
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Source: Wikipedia
Title: Cash–Landrum incident
Link: https://en.wikipedia.org/wiki/Cash%E2%80%93Landrum_incident -
Source: Wikipedia
Title: Water tower
Link: https://en.wikipedia.org/wiki/Water_towerSource snippet
March 19, 2002 — Shooter's Hill water tower is a local landmark in London, United Kingdom.... A standard water tower typically has a hei...
Published: March 19, 2002
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Source: youtube.com
Title: The Cash
Link: https://www.youtube.com/watch?v=t6sV0LIy7GISource snippet
LANDRUM INCIDENT | MOST CREDIBLE UFO CASE IN HISTORY...
Additional References
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Source: reddit.com
Link: https://www.reddit.com/r/aliens/comments/wneh1r/comparison_between_calvine_ufo_and_cash_landrum/Source snippet
Comparison between Calvine UFO and Cash Landrum...AFAIK Cash-Landrum wasn't this large. phr99. OP •. 4y ago. On the link in my opening p...
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Source: academia.edu
Link: https://www.academia.edu/101922617/The_Reliability_of_UFO_Witness_TestimonySource snippet
The Reliability of UFO Witness TestimonyThe object had 0.1 degrees size (witness size test estimation), was in the east at 45 degrees ele...
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Source: cunninghaminc.org
Title: a comprehensive guide to sizing a water tower for a municipality water system
Link: https://www.cunninghaminc.org/a-comprehensive-guide-to-sizing-a-water-tower-for-a-municipality-water-system/Source snippet
A Comprehensive Guide to Sizing a Water Tower for...8 Jun 2023 — With this tool, you can accurately determine the ideal size for your mu...
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Source: youtube.com
Link: https://www.youtube.com/watch?v=JpxebuZa1rESource snippet
Geometric Solids -- Water Tower ProblemGeometric Solids -- Water Tower Problem. 1.8K views · 8 years ago...more. MATHfisch. 7.48K. Subsc...
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Source: podcasts.happyscribe.com
Title: And it has this belt of blue lights around the center. Every few minutes, it
Link: https://podcasts.happyscribe.com/so-supernatural/alien-the-cash-landrum-incidentSource snippet
Supernatural - ALIEN: The Cash-Landrum IncidentIt's a metallic diamond shaped and about the size of a freaking water tower...
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Source: science.howstuffworks.com
Link: https://science.howstuffworks.com/space/aliens-ufos/[cash-landrum-ufo-incidentSource snippet
The Cash-Landrum UFO IncidentOn December 29, 1980, Betty Cash, [Vickie Landrum]({{ 'vickie-landrum/' | relative_url }}) and Vickie's grandson Colby encountered a diam...
Published: December 29, 1980
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Source: reddit.com
Title: the unsolved cashlandrum incident of 1980 two
Link: https://www.reddit.com/r/UnresolvedMysteries/comments/kdzdoh/the_unsolved_cashlandrum_incident_of_1980_two/Source snippet
The Unsolved Cash-Landrum Incident of 1980, two women... - RedditBetty got out the car and approached the object, the object was d...
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Source: siam.org
Link: https://www.siam.org/[mediaSource snippet
eight of about 120 feet to satisfy that requirement. In...Read more...
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Source: edie.net
Title: Ireland’s largest water tower stands tall
Link: https://www.edie.net/irelands-largest-water-tower-stands-tall/Source snippet
5 Apr 2022 — The Kiltrough water tower was designed for a volume of 5000 m3 and its water reservoir is supported on a cylindrical...
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Source: reddit.com
Link: https://www.reddit.com/r/AskEngineers/comments/r3g0li/effective_range_of_an_average_water_tower/Source snippet
ering how many miles (in a radius) can a 165ft water...
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