The Philadelphia Experiment was an alleged event claimed to have been witnessed by an ex-
merchant mariner named
Carl M. Allen at the United States Navy's
Philadelphia Naval Shipyard
The Philadelphia Naval Shipyard was the first United States Navy shipyard and was historically important for nearly two centuries.
Construction of the original Philadelphia Naval Shipyard began during the American Revolution in 1776 at Front ...
in
Philadelphia
Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...
,
Pennsylvania
Pennsylvania, officially the Commonwealth of Pennsylvania, is a U.S. state, state spanning the Mid-Atlantic (United States), Mid-Atlantic, Northeastern United States, Northeastern, Appalachian, and Great Lakes region, Great Lakes regions o ...
, United States, some time around October 28, 1943. Allen described an experiment where the U.S. Navy attempted to make a
destroyer escort
Destroyer escort (DE) was the United States Navy mid-20th-century classification for a warship designed with the endurance necessary to escort mid-ocean convoys of merchant marine ships.
Development of the destroyer escort was promoted by th ...
, , disappear and the bizarre results that followed.
The story surfaced in late 1955 when Allen sent a book full of hand-written annotations referring to the experiment to a U.S. Navy research organization and, a little later, a series of letters making further claims to a
UFO
An unidentified flying object (UFO) is an object or phenomenon seen in the sky but not yet identified or explained. The term was coined when United States Air Force (USAF) investigations into flying saucers found too broad a range of shapes ...
book writer. Allen's account of the event is widely understood to be a
hoax
A hoax (plural: hoaxes) is a widely publicised falsehood created to deceive its audience with false and often astonishing information, with the either malicious or humorous intent of causing shock and interest in as many people as possible.
S ...
.
Several different—and sometimes contradictory—versions of the alleged experiment have circulated over the years in
paranormal
Paranormal events are purported phenomena described in popular culture, folk, and other non-scientific bodies of knowledge, whose existence within these contexts is described as being beyond the scope of normal scientific understanding. Not ...
literature and popular movies. The U.S. Navy maintains that no such experiment was ever conducted, that the details of the story contradict well-established facts about USS ''Eldridge'', and that the physics the experiment is claimed to be based on are non-existent.
Origins of the story
The story of a "Philadelphia Experiment" originated in late 1955 when Carl M. Allen sent an anonymous package marked "Happy Easter" containing a copy of
Morris K. Jessup's book ''The Case for the UFO: Unidentified Flying Objects'' to the U.S.
Office of Naval Research
The Office of Naval Research (ONR) is an organization within the United States Department of the Navy responsible for the science and technology programs of the U.S. Navy and Marine Corps. Established by Congress in 1946, its mission is to plan ...
. The book was filled with handwritten notes in its margins, written with three different shades of blue ink, appearing to detail a debate among three individuals, only one of whom is given a name: "Jemi". They commented on Jessup's ideas about the propulsion for
flying saucers
A flying saucer, or flying disc, is a purported type of disc-shaped unidentified flying object (UFO). The term was coined in 1947 by the United States (US) news media for the objects pilot Kenneth Arnold UFO sighting, Kenneth Arnold claimed fl ...
, discussed
alien races
This is a list of lists of fictional extraterrestrial species.
Alphabetical
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z
By medium & franchise
Literature
* List of ''Noon Universe'' ...
, and expressed concern that Jessup was too close to discovering their technology.
The commenters referred to each other as "
Gypsies
{{Infobox ethnic group
, group = Romani people
, image =
, image_caption =
, flag = Roma flag.svg
, flag_caption = Romani flag created in 1933 and accepted at the 1971 World Romani Congress
, ...
", and discussed two different types of "people" living in
outer space. Their text contained
non-standard use of
capitalization
Capitalization ( North American spelling; also British spelling in Oxford) or capitalisation (Commonwealth English; all other meanings) is writing a word with its first letter as a capital letter (uppercase letter) and the remaining letters in ...
and
punctuation
Punctuation marks are marks indicating how a piece of writing, written text should be read (silently or aloud) and, consequently, understood. The oldest known examples of punctuation marks were found in the Mesha Stele from the 9th century BC, c ...
, and detailed a lengthy discussion of the merits of various elements of Jessup's
assumptions in the book. There were oblique references to the Philadelphia Experiment (one commenter reassures his fellow annotators who have highlighted a certain theory which Jessup advanced).
Shortly thereafter, in January 1956, Allen began sending a series of letters to Jessup, using his given name as well as "Carlos Miguel Allende".
The first known letter warned Jessup not to investigate the levitation of
unidentified flying object
An unidentified flying object (UFO) is an object or phenomenon seen in the sky but not yet identified or explained. The term was coined when United States Air Force (USAF) investigations into flying saucers found too broad a range of shapes ...
s. Allen put forward a story of dangerous science based on alleged unpublished theories by
Albert Einstein
Albert Einstein (14 March 187918 April 1955) was a German-born theoretical physicist who is best known for developing the theory of relativity. Einstein also made important contributions to quantum mechanics. His mass–energy equivalence f ...
. He further claimed a scientist named Franklin Reno put these theories into practice at the
Philadelphia Naval Shipyard
The Philadelphia Naval Shipyard was the first United States Navy shipyard and was historically important for nearly two centuries.
Construction of the original Philadelphia Naval Shipyard began during the American Revolution in 1776 at Front ...
in October 1943.
Allen claimed to have witnessed this experiment while serving aboard the . In Allen's account, a destroyer escort was successfully made invisible, but the ship inexplicably teleported to
Norfolk, Virginia
Norfolk ( ) is an independent city (United States), independent city in the U.S. state of Virginia. It had a population of 238,005 at the 2020 United States census, 2020 census, making it the List of cities in Virginia, third-most populous city ...
, for several minutes, and then reappeared in the Philadelphia yard. The ship's crew was supposed to have suffered various side effects, including insanity, intangibility, and being "frozen" in place.
When Jessup wrote back requesting more information to corroborate his story, Allen said his memory would have to be recovered
and referred Jessup to what seems to be a non-existent Philadelphia newspaper article that Allen claimed covered the incident.
In 1957,
Jessup was invited to the Office of Naval Research where he was shown the annotated copy of his book. Jessup noticed the handwriting of the annotations resembled the letters he received from Allen.
(Twelve years later, Allen would say that he authored all of the annotations in order "to scare the hell out of Jessup".)
Two officers at ONR, Captain Sidney Sherby and Commander George W. Hoover, took a personal interest in the matter.
Hoover later explained that his duties as Special Projects Officer required him to investigate many publications and that he ultimately found nothing of substance to the alleged invisibility experiment.
Hoover discussed the annotations with Austin N. Stanton, president of Varo Manufacturing Corporation of Garland, Texas, during meetings about Varo's contract work for ONR.
Stanton became so interested that Varo's office began producing
mimeograph
A mimeograph machine (often abbreviated to mimeo, sometimes called a stencil duplicator or stencil machine) is a low-cost duplicating machine that works by forcing ink through a stencil onto paper. The process is called mimeography, and a co ...
ed copies of Jessup's book with the annotations and Allen's letters, first a dozen and eventually 127 copies.
These copies came to be known as the "Varo edition".
Besides noting handwriting of the individual named "Jemi" (addressed as such by the others and using blue-violet ink), the anonymous introduction to the Varo edition concludes that there were two other individuals making annotations, "Mr. A" (identified as Allen by Jessup, in blue ink), "Mr. B" (in blue-green ink).
Jessup tried to publish more books on the subject of UFOs, but was unsuccessful. He lost his publisher and experienced a succession of downturns in his personal life, and died by suicide in Florida on April 30, 1959.
The various book writers who tried to get more information from Carl Allen found his responses elusive, or couldn't find him at all. One reporter from Allen's hometown of
New Kensington
New Kensington (known locally as New Ken) is a city in Westmoreland County, Pennsylvania, United States. The population was 12,170 at the 2020 census. It is situated along the Allegheny River northeast of Pittsburgh and is part of the Pittsb ...
, Pennsylvania, interviewed his family and was handed a pile of documents and books, all scribbled with Allen's annotations. They described Allen as a "fantastic mind", but also a drifter and a "master leg-puller".
Repetitions
In 1965
Vincent Gaddis published a book of
Forteana, titled ''Invisible Horizons: True Mysteries of the Sea.'' In it he recounted the story of the experiment from the Varo annotations.
George E. Simpson and Neal R. Burger published a 1978 novel titled ''Thin Air.'' In this book, set in the present day, a
Naval Investigative Service officer investigates several threads linking wartime invisibility experiments to a
conspiracy
A conspiracy, also known as a plot, ploy, or scheme, is a secret plan or agreement between people (called conspirers or conspirators) for an unlawful or harmful purpose, such as murder, treason, or corruption, especially with a political motivat ...
involving
matter transmission technology.
Large-scale popularization of the story came about in 1979 when the author
Charles Berlitz, who had written a best selling book on the
Bermuda Triangle
The Bermuda Triangle, also known as the Devil's Triangle, is a loosely defined region in the North Atlantic Ocean, roughly bounded by Florida, Bermuda, and Puerto Rico. Since the mid-20th century, it has been the focus of an urban legend sug ...
, and his co-author,
ufologist
Ufology, sometimes written UFOlogy ( or ), is the investigation of unidentified flying objects (UFOs) by people who believe that they may be of extraordinary claims, extraordinary origins (most frequently of extraterrestrial hypothesis, extrate ...
William L. Moore, published ''The Philadelphia Experiment: Project Invisibility,'' which purported to be a factual account.
The book expanded on stories of bizarre happenings, lost
unified field theories by
Albert Einstein
Albert Einstein (14 March 187918 April 1955) was a German-born theoretical physicist who is best known for developing the theory of relativity. Einstein also made important contributions to quantum mechanics. His mass–energy equivalence f ...
, and government
coverup
A cover-up is an attempt, whether successful or not, to conceal evidence of wrongdoing, error, incompetence, or other embarrassing information. Research has distinguished personal cover-ups (covering up one's own misdeeds) from relational co ...
s, all based on the Allende/Allen letters to Jessup.
Moore and Berlitz devoted one of the last chapters in ''The Philadelphia Experiment: Project Invisibility'' to "The Force Fields of Townsend Brown", namely the experimenter and then-U.S. Navy technician
Thomas Townsend Brown
Thomas Townsend Brown (March 18, 1905 – October 27, 1985) was an American inventor whose research into odd electrical effects led him to believe he had discovered a type of anti-gravity caused by strong electric fields. Instead of being an anti- ...
. Paul LaViolette's 2008 book ''Secrets of Antigravity Propulsion'' also recounts some mysterious involvement of Townsend Brown.
The story was adapted into a 1984
time travel film called ''
The Philadelphia Experiment'', directed by
Stewart Raffill
Stewart Raffill is a British writer and director.
Biography
Raffill was born in England and grew up near Stratford before immigrating to the US and working in the motion picture industry. His writing and directing work in film and TV spans s ...
. Though only loosely based on the prior accounts of the "Experiment", it served to dramatize the core elements of the original story. In 1989, Alfred Bielek claimed to have been aboard USS ''Eldridge'' during the Experiment.
Addressing the
MUFON
The Mutual UFO Network (MUFON) is a US-based non-profit organization composed of civilian volunteers who study reported UFO sightings. It is one of the oldest and largest organizations of its kind, claiming more than 4,000 members worldwide ...
Conference in 1990, Bielek asserted that Raffill's film was largely consistent with the events he claimed to have witnessed in 1943.
Bielek would later add details to his claims on radio talk shows, conferences, and the Internet.
General synopsis
:''Note: Several different, and sometimes contradictory, versions of the alleged experiment have circulated over the years. The following synopsis recounts key story points common to most accounts.
''
The experiment was allegedly based on an aspect of some
unified field theory
In physics, a Unified Field Theory (UFT) or “Theory of Everything” is a type of field theory that allows all fundamental forces of nature, including gravity, and all elementary particles to be written in terms of a single physical field. Ac ...
, a term coined by
Albert Einstein
Albert Einstein (14 March 187918 April 1955) was a German-born theoretical physicist who is best known for developing the theory of relativity. Einstein also made important contributions to quantum mechanics. His mass–energy equivalence f ...
to describe a class of potential theories; such theories would aim to describe — mathematically and physically — the interrelated nature of the forces of
electromagnetism
In physics, electromagnetism is an interaction that occurs between particles with electric charge via electromagnetic fields. The electromagnetic force is one of the four fundamental forces of nature. It is the dominant force in the interacti ...
and
gravity
In physics, gravity (), also known as gravitation or a gravitational interaction, is a fundamental interaction, a mutual attraction between all massive particles. On Earth, gravity takes a slightly different meaning: the observed force b ...
.
According to some accounts, unspecified "researchers" thought that a theory of this type would enable using large
electrical generators
In electricity generation, a generator, also called an ''electric generator'', ''electrical generator'', and ''electromagnetic generator'' is an electromechanical device that converts mechanical energy to electrical energy for use in an externa ...
to
bend light around an object via
refraction
In physics, refraction is the redirection of a wave as it passes from one transmission medium, medium to another. The redirection can be caused by the wave's change in speed or by a change in the medium. Refraction of light is the most commo ...
, so that the object became completely invisible. The Navy regarded this as of military value and it sponsored the experiment.
Another unattributed version of the story proposes that researchers were preparing magnetic and gravitational measurements of the
seafloor
The seabed (also known as the seafloor, sea floor, ocean floor, and ocean bottom) is the bottom of the ocean. All floors of the ocean are known as seabeds.
The structure of the seabed of the global ocean is governed by plate tectonics. Most of ...
to detect anomalies, supposedly based on Einstein's attempts to understand gravity. In this version, there were also related secret experiments in
Nazi Germany
Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German Reich, German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a Totalit ...
to find
anti-gravity
Anti-gravity (also known as non-gravitational field) is the phenomenon of creating a place or object that is free from the force of gravity. It does not refer to either the lack of weight under gravity experienced in free fall or orbit, or to ba ...
, allegedly led by
SS-
Obergruppenführer
(, ) was a paramilitary rank in Nazi Germany that was first created in 1932 as a rank of the ''Sturmabteilung'' (SA) and adopted by the ''Schutzstaffel'' (SS) one year later. Until April 1942, it was the highest commissioned SS rank after ...
Hans Kammler
Hans Kammler (26 August 1901 – after October 1945) was an SS-''Obergruppenführer'' responsible for Nazi civil engineering projects and its top secret V-weapons program. He oversaw the construction of various Nazi concentration camps, includi ...
.
There are no reliable or attributed accounts, but in most accounts of the supposed experiment, USS ''Eldridge'' was fitted with the required equipment at the
Philadelphia Naval Shipyard
The Philadelphia Naval Shipyard was the first United States Navy shipyard and was historically important for nearly two centuries.
Construction of the original Philadelphia Naval Shipyard began during the American Revolution in 1776 at Front ...
. Testing began in the summer of 1943, and it was supposedly successful to a limited extent. One test resulted in ''Eldridge'' being rendered nearly invisible with some witnesses reporting a "greenish fog" appearing in its place. Crew members complained of severe
nausea
Nausea is a diffuse sensation of unease and discomfort, sometimes perceived as an urge to vomit. It can be a debilitating symptom if prolonged and has been described as placing discomfort on the chest, abdomen, or back of the throat.
Over 30 d ...
afterwards.
Allegedly, when the ship reappeared some sailors were embedded in the metal structures of the ship, including one sailor who ended up on a deck level below where he began and had his hand embedded in the steel hull of the ship as well as some sailors who went "completely
bananas
A banana is an elongated, edible fruit – berry (botany), botanically a berry – produced by several kinds of large treelike herbaceous flowering plants in the genus ''Musa (genus), Musa''. In some countries, cooking bananas are called pla ...
".
There is also a claim the experiment was altered after that point at the request of the Navy, limiting it to creating a
stealth technology
Stealth technology, also termed low observable technology (LO technology), is a sub-discipline of military tactics and passive and active electronic countermeasures. The term covers a range of military technology, methods used to make personnel ...
that would render USS ''Eldridge'' invisible to radar. None of these allegations have been independently substantiated.
Other versions of the story give the date of the experiment as October 28, 1943. In this version, ''Eldridge'' not only became invisible, but disappeared from the area and
teleported
Teleportation is the hypothetical transfer of matter or energy from one point to another without traversing the physical space between them. It is a common subject in science fiction and fantasy literature. Teleportation is often paired with tim ...
to
Norfolk, Virginia
Norfolk ( ) is an independent city (United States), independent city in the U.S. state of Virginia. It had a population of 238,005 at the 2020 United States census, 2020 census, making it the List of cities in Virginia, third-most populous city ...
, over away. It is claimed that ''Eldridge'' sat for some time in view of men aboard the ship , whereupon ''Eldridge'' vanished and then reappeared in
Philadelphia
Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...
at the site it had originally occupied.
Many versions of the tale include descriptions of serious side effects for the crew. Some crew members were said to have been physically fused to bulkheads while others suffered from mental disorders, some re-materialized inside out, and still others vanished. It is also claimed that the ship's crew may have been subjected to
brainwashing
Brainwashing is the controversial idea that the human mind can be altered or controlled against a person's will by manipulative psychological techniques. Brainwashing is said to reduce its subject's ability to think critically or independently ...
to maintain the secrecy of the experiment.
Evidence and research
The historian
Mike Dash
Mike Dash is a Welsh writer, historian, and researcher. He has written books and articles about dramatic episodes in history.
Biography
Dash was born in London. He attended Peterhouse, Cambridge, a college particularly noted for teaching histo ...
notes that many authors who publicized the "Philadelphia Experiment" story after that of Jessup appeared to have conducted little or no research of their own. Through the late 1970s, for example, Allende/Allen was often described as mysterious and difficult to locate, but Goerman determined Allende/Allen's identity after only a few telephone calls.
Others speculate that much of the key literature emphasizes dramatic embellishment rather than pertinent research. Berlitz's and Moore's account of the story (''The Philadelphia Experiment: Project Invisibility'') claimed to include factual information, such as transcripts of an interview with a scientist involved in the experiment, but their work has also been criticized for
plagiarizing
Plagiarism is the representation of another person's language, thoughts, ideas, or expressions as one's own original work.From the 1995 '' Random House Compact Unabridged Dictionary'': use or close imitation of the language and thoughts of anothe ...
key story elements from the novel ''Thin Air'' which was published a year earlier.
Misunderstanding of documented naval experiments
Personnel at the Fourth Naval District have suggested that the alleged event was a misunderstanding of routine research during
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
at the Philadelphia Naval Shipyard. One theory is that "the foundation for the apocryphal stories arose from
degaussing
Degaussing, or deperming, is the process of decreasing or eliminating a remnant magnetic field. It is named after the gauss, a unit of magnetism, which in turn was named after Carl Friedrich Gauss. Due to magnetic hysteresis, it is generally not ...
experiments which have the effect of making a ship undetectable or 'invisible' to magnetic mines." Another possible origin of the stories about
levitation
Levitation, Levitate, or Levitating may refer to:
Concepts
*Levitation (illusion), an illusion where a magician appears to levitate a person or object
*Levitation (paranormal), the claimed paranormal phenomenon of levitation, occurring without an ...
,
teleportation
Teleportation is the hypothetical transfer of matter or energy from one point to another without traversing the physical space between them. It is a common subject in science fiction and fantasy literature. Teleportation is often paired with tim ...
, and effects on human crew might be attributed to experiments with the generating plant of the destroyer , wherein a higher-frequency generator produced
corona discharge
A corona discharge is an electrical discharge caused by the ionization of a fluid such as air surrounding a conductor (material), conductor carrying a high voltage. It represents a local region where the air (or other fluid) has undergone ...
s, although none of the crew reported suffering effects from the experiment.
Observers have argued that it is inappropriate to grant credence to an unusual story promoted by one individual in the absence of corroborating evidence. Robert Goerman wrote in ''
Fate
Destiny, sometimes also called fate (), is a predetermined course of events. It may be conceived as a predeterminism, predetermined future, whether in general or of an individual.
Fate
Although often used interchangeably, the words wiktionary ...
'' magazine in 1980, that "Carlos Allende"/"Carl Allen", who is said to have corresponded with Jessup, was Carl Meredith Allen of
New Kensington, Pennsylvania
New Kensington (known locally as New Ken) is a city in Westmoreland County, Pennsylvania, United States. The population was 12,170 at the 2020 United States census, 2020 census. It is situated along the Allegheny River northeast of Pittsburgh ...
, who had an established history of
psychiatric illness
A mental disorder, also referred to as a mental illness, a mental health condition, or a psychiatric disability, is a behavioral or mental pattern that causes significant distress or impairment of personal functioning. A mental disorder is ...
and who may have fabricated the primary history of the experiment as a result of his mental illness. Goerman later realized that Allen was a family friend and "a creative and imaginative loner ... sending bizarre writings and claims".
Timeline inconsistencies
USS ''Eldridge'' was not commissioned until August 27, 1943, and it remained in port in
New York City
New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
until September 1943. The October experiment allegedly took place while the ship was on its first
shakedown cruise
Shakedown cruise is a nautical term in which the performance of a ship is tested. Generally, shakedown cruises are performed before a ship enters service or after major changes such as a crew change, repair, refit or overhaul. The shakedown ...
in
the Bahamas
The Bahamas, officially the Commonwealth of The Bahamas, is an Archipelagic state, archipelagic and island country within the Lucayan Archipelago of the Atlantic Ocean. It contains 97 per cent of the archipelago's land area and 88 per cent of ...
, although proponents of the story claim that the
ship's logs
A logbook (or log book) is a record used to record states, events, or conditions applicable to complex machines or the personnel who operate them. Logbooks are commonly associated with the operation of aircraft, nuclear plants, particle accelera ...
might have been falsified or else still be
classified
Classified may refer to:
General
*Classified information, material that a government body deems to be sensitive
*Classified advertising or "classifieds"
Music
*Classified (rapper) (born 1977), Canadian rapper
* The Classified, a 1980s American ro ...
. An alternative explanation is that was actually used rather than USS ''Eldridge'' as USS ''Hammann'' arrived in the shipyard on October 20, 1943.
The
Office of Naval Research
The Office of Naval Research (ONR) is an organization within the United States Department of the Navy responsible for the science and technology programs of the U.S. Navy and Marine Corps. Established by Congress in 1946, its mission is to plan ...
(ONR) stated in September 1996, "ONR has never conducted investigations on radar invisibility, either in 1943 or at any other time." Pointing out that the ONR was not established until 1946, it denounces the accounts of "The Philadelphia Experiment" as complete "
science fiction
Science fiction (often shortened to sci-fi or abbreviated SF) is a genre of speculative fiction that deals with imaginative and futuristic concepts. These concepts may include information technology and robotics, biological manipulations, space ...
".
A reunion of Navy veterans who had served aboard USS ''Eldridge'' told a Philadelphia newspaper in April 1999 that their ship had never made port in Philadelphia.
Further evidence discounting the Philadelphia Experiment timeline comes from USS ''Eldridge’s'' complete World War II action report, including the remarks section of the 1943 deck log, available on
microfilm
A microform is a scaled-down reproduction of a document, typically either photographic film or paper, made for the purposes of transmission, storage, reading, and printing. Microform images are commonly reduced to about 4% or of the original d ...
.
Alternative explanations
Researcher
Jacques Vallée
Jacques Fabrice Vallée (; born September 24, 1939) is an Internet pioneer, computer scientist, venture capitalist, author, ufologist and astronomer currently residing in San Francisco, California and Paris, France.
His scientific career bega ...
[Vallée, Jacques F. (1994]
"Anatomy of a Hoax: The Philadelphia Experiment Fifty Years Later"
''Journal of Scientific Exploration
The Society for Scientific Exploration (SSE) is a group committed to studying fringe science. The opinions of the organization in regard to what are the proper limits of scientific exploration are often at odds with those of mainstream science. Cr ...
'' Volume 8, Number 1, pp. 47–71 describes a procedure on board , which was docked alongside the ''Eldridge'' in 1943. The operation involved the generation of a powerful electromagnetic field on board the ship in order to
deperm or
degauss it, with the goal of rendering the ship undetectable or "invisible" to magnetically fused undersea
mines and
torpedo
A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, such ...
es. This system was invented by a Canadian,
Charles F. Goodeve, when he held the rank of
commander
Commander (commonly abbreviated as Cmdr.) is a common naval officer rank as well as a job title in many army, armies. Commander is also used as a rank or title in other formal organizations, including several police forces. In several countri ...
in the
Royal Canadian Naval Volunteer Reserve
The Royal Canadian Naval Volunteer Reserve (RCNVR) was a naval reserve force of the Royal Canadian Navy from 1923 to 1946. It replaced the Royal Naval Canadian Volunteer Reserve (RNCVR).
Foundation
The RCNVR was created in 1923. The organizati ...
, and the
Royal Navy
The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
and other navies used it widely during World War II.
British ships of the era often included such degaussing systems built into the upper decks (the
conduits are still visible on the deck of in London, for example). Degaussing is still used today. However, it has no effect on visible light or radar. Vallée speculates that accounts of USS ''Engstrom's'' degaussing might have been garbled and
confabulated in subsequent retellings, and that these accounts may have influenced the story of "The Philadelphia Experiment".
Vallée cites a veteran who served on board USS ''Engstrom'' and who suggests it might have traveled from Philadelphia to Norfolk and back again in a single day at a time when merchant ships could not, by use of the
Chesapeake & Delaware Canal
The Chesapeake & Delaware Canal (C&D Canal) is a -long, -wide and -deep ship canal that connects the Delaware River with the Chesapeake Bay in the states of Delaware and Maryland in the United States.
In the mid-17th century, mapmaker Augus ...
and
Chesapeake Bay
The Chesapeake Bay ( ) is the largest estuary in the United States. The bay is located in the Mid-Atlantic (United States), Mid-Atlantic region and is primarily separated from the Atlantic Ocean by the Delmarva Peninsula, including parts of the Ea ...
, which at the time was open only to naval vessels.
Use of that channel was kept quiet: German submarines had ravaged shipping along the East Coast during
Operation Drumbeat
The Second Happy Time (; officially (), and also known among German submarine commanders as the "American Shooting Season") was a phase in the Battle of the Atlantic during which Axis submarines attacked merchant shipping and Allied naval v ...
, and thus military ships unable to protect themselves were secretly moved via canals to avoid the threat.
The same veteran claims to be the man that Allende witnessed "disappearing" at a bar. He claims that when a fight broke out, friendly barmaids whisked him out of the bar before the police arrived, because he was under age for drinking. They then covered for him by claiming that he had disappeared.
See also
*
Diffused lighting camouflage
Diffused lighting camouflage was a form of active camouflage using counter-illumination to enable Ship camouflage, a ship to match its background, the night sky, that was tested by the Royal Canadian Navy on corvettes during World War II. The pr ...
, a prototype Royal Canadian Navy counter-illumination system for ships
*
List of conspiracy theories
This is a list of notable Conspiracy theory, conspiracy theories. Many conspiracy theories relate to supposed clandestine government plans and elaborate murder plots. They usually deny consensus opinion and cannot be proven using Historical me ...
*
Montauk Project
The Montauk Project is a conspiracy theory that alleges there were a series of United States government projects conducted at Camp Hero or Montauk Air Force Station in Montauk, New York, for the purpose of developing psychological warfare t ...
*
Yehudi lights, a prototype US Navy counter-illumination system for aircraft
References
External links
The Philadelphia Experiment from A–Z– A collection of images, articles, USS ''Eldridge''’s Logs, original research, and timeline of events
The Philadelphia Experiment by the Department of the Navy – Naval Historical CenterThe Varo Edition of ''The Case for the UFO''All Information available, including original pages.
PDF version of "The Case for the Unidentified Flying Object" by Morris K. Jessup – 2003 transcription of the Office of Naval Research (ONR) annotated "Varo edition", with three-color notes supposedly by Carlos Miguel AllendeAlias Carlos Allende by Robert A. Goerman– the story of Carl Meredith Allen
Mirage, by Clive Cussler-- works this myth into part of his "Oregon" series of adventure novels
{{Authority control
Conspiracy theories involving the United States military
Culture of Philadelphia
American urban legends
Pennsylvania folklore
Hoaxes in the United States
1943 in Pennsylvania
Teleportation
World War II-related historical negationism