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| Philadelphia Experiment | |
|---|---|
| Name | USS Eldridge (DE-173) |
| Builder | Federal Shipbuilding and Drydock Company |
| Laid down | 1943 |
| Launched | 1943 |
| Commissioned | 1943 |
| Decommissioned | 1946 |
| Fate | Transferred to Hellenic Navy |
Philadelphia Experiment The Philadelphia Experiment is an alleged 1943 naval incident claiming that the United States Navy used classified technology to render the destroyer escort USS Eldridge temporarily invisible or teleported it, provoking injuries and disappearances among crew. The story emerged in postwar correspondence and pulp-era accounts, intersecting with narratives about Albert Einstein, John von Neumann, Manhattan Project, and conspiracy-focused figures such as Carlos Allende and Morris K. Jessup. Historians, naval archivists, and researchers in Office of Naval Research and Naval History and Heritage Command have treated the tale as fringe, linking it to hoaxes, misidentification, and popular Cold War anxieties.
The tale began with letters in the 1950s from a merchant seaman using the name Carlos Allende (also reported as Carl Allen) to Morris K. Jessup, an author of speculative works on Albert Einstein and unified field theories. Jessup had written about alleged secret physics projects influenced by Einstein Papers and references to Unified field theory, which attracted attention from organizations such as the Office of Naval Research and individuals connected to Project Rainbow and narratives invoking John von Neumann and Enrico Fermi. The story tied to the ship USS Eldridge (DE-173) and the Philadelphia Naval Shipyard in Philadelphia, Pennsylvania, while invoking technological optimism and fear characteristic of the late World War II and early Cold War periods. Early dissemination occurred through pulp magazine channels, amateur Ufology circles, and proponents linked to Roswell incident-era thinking.
Accounts claim a secret experiment—sometimes labeled in secondary sources as linked to Project Rainbow—attempted to use electromagnetic fields, directed-energy devices, or advanced physics allegedly inspired by Albert Einstein and John von Neumann to bend light or space-time around the USS Eldridge (DE-173). Variants describe sudden disappearance, teleportation to Norfolk, Virginia, or projection to an undefined locale, with crew suffering from electrocution-like injuries, psychosis, or having become embedded in bulkheads. Narratives named supposed participants or authorities such as Alfred Hubbard (in fringe accounts), technicians associated with Office of Naval Research, and laboratories allegedly resembling Los Alamos National Laboratory or Bell Labs. The tale was amplified by correspondence between Carlos Allende and Morris K. Jessup, later filtered through Frank Scully-style UFO reportage and pulp-era conspiracy communicators.
Primary witness material centers on Allende’s letters and secondhand reports; no corroborating deck logs, muster rolls, or deck-to-bridge orders from the USS Eldridge (DE-173) support the sensational claims. Crew lists and ship movement records maintained by Naval History and Heritage Command, National Archives and Records Administration, and contemporaneous reports from the Philadelphia Naval Shipyard place the Eldridge in the Mediterranean during the alleged dates, often docking at ports such as Bizerte and Naples. Investigative journalists and historians compared testimonies to documented voyages, citing muster rolls, deck log entries, and transfer records from Bethlehem Steel shipyards and the Hellenic Navy transfer paperwork. Analyses pointed to hoax indicators: forged letters, inconsistencies in Allende’s timeline, and misattributed photographs, including images of similar ships like USS Andrew Furuseth or other Cannon-class destroyer escort vessels used to mislead. Skeptics highlighted parallels to 1950s pulp fiction, Frank Scully-style claims, and the later appropriation by Ufology and conspiracy authors.
Official inquiries by the United States Navy and archival researchers found no evidence of cloaking or teleportation experiments aboard the Eldridge. The Office of Naval Research reviewed Jessup’s annotated copies and Allende correspondence but did not corroborate experimental programs matching the story. The Naval Sea Systems Command and historians at Naval History and Heritage Command produced statements and reports referencing deck logs and transit manifests showing the ship’s documented deployments in the Atlantic Ocean and Mediterranean theater. Independent researchers accessed material at the National Archives and Records Administration and interviewed surviving sailors from the USS Eldridge (DE-173) and sister ships, finding normal wartime operations and later service transfers to the Hellenic Navy (as Panthir (D67)). Legal and journalistic examinations treated the tale as hoax, misidentification, or deliberate fabrication rooted in postwar mythmaking.
The narrative inspired books, films, television episodes, and comics, influencing creators and franchises associated with 20th Century Fox, BBC, Universal Pictures, and independent producers. Works such as speculative nonfiction and novelizations linked to Morris K. Jessup and the Allende correspondence fueled dramatizations on programs alongside subjects like Project MKUltra and the Roswell incident. The story appears in fictional treatments in The X-Files-style media, documentary-style programs on History Channel, and dramatized films referencing Teleportation tropes and speculative physics from Albert Einstein-inspired lore. It became part of broader conspiratorial lore intersecting with Cold War popular culture, influencing tabletop gaming, comic books, and stage plays, and generating tourist interest in Philadelphia, Pennsylvania and naval heritage sites. The myth continues to be cited in discussions of secrecy, experimental science, and the interplay between wartime archives and popular imagination.
Category:Conspiracy theories Category:Naval incidents