Research source

USS_Trepang_USO

Date of account: Repository revision bf0636323d
Source: UAP Gerb Video Database — open research notes
Reference: 01 Incidents · contributor research note
Rights: open_licensed
Language: English
Record updated: 2026-08-24

Record summary

The USS Trepang USO Incident is a well-known case involving Unidentified Submerged Objects (USOs). In March 1971, the USS Trepang (SSN-674), a Sturgeon-class nuclear submarine, reportedly encountered and photographed anomalous objects while on a routine mission in the Arctic Ocean. The event was first revealed through declassified photographs and later analyzed by researchers and military insiders.

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Overview The USS Trepang USO Incident is a well-known case involving Unidentified Submerged Objects (USOs). In March 1971, the USS Trepang (SSN-674), a Sturgeon-class nuclear submarine, reportedly encountered and photographed anomalous objects while on a routine mission in the Arctic Ocean. The event was first revealed through declassified photographs and later analyzed by researchers and military insiders. --- Timeline of Events March 1971 The USS Trepang, under Vice Admiral Dean Reynolds Sackett, was conducting naval exercises in Arctic waters. The submarine crew spotted unidentified objects emerging from the water and flying at high speeds. Multiple high-resolution photographs were taken of disc- and cigar-shaped craft. Photographic Evidence Emerges (2015) A series of declassified images surfaced online, allegedly from military archives. The images depict various UFO-like objects, some hovering above the ice. Some researchers suggest the objects could be secret military technology, while others argue they represent non-human craft. --- Key Witnesses & Officials Vice Admiral Dean Reynolds Sackett – Commanding officer of the USS Trepang during the incident. Crew Members (Unnamed) – Various naval personnel who allegedly witnessed and photographed the objects. Timothy Gallaudet – Former Rear Admiral who has spoken about USOs and military tracking of transmedium craft. --- Evidence & Claims Photographs of the Craft The images display multiple unidentified objects, including: - Cigar-shaped craft - Large disc-like craft - Objects emerging from or descending into the water Naval Encounter Reports The USS Trepang’s logs reportedly reference an unexplained radar contact. Some former crew members hinted at a classified investigation into USOs. Alternative Explanations Military Experiment – Some suggest the objects were classified U.S. or Soviet experimental craft. Optical Illusions & Ice Formations – Skeptics argue the images may depict natural Arctic phenomena. Legitimate USO Phenomenon – Others believe the incident aligns with other naval UFO encounters. --- Related Documents & Investigations Declassified USS Trepang Images – Photographic evidence linked to the encounter. FOIA Requests on USO Sightings – Government documents referencing underwater anomalies. Timothy Gallaudet & USO Research – Naval perspectives on transmedium UAPs. --- Cross-References USOsUnidentifiedSubmergedObjects – Broader discussion on underwater UFO activity. UFOsandMilitaryEncounters – Other recorded military interactions with unidentified craft. GovernmentSecrecyandUAP – The role of secrecy in USO-related military events. --- Tags #USO #Navy #USSTrepang #GovernmentSecrecy #TransmediumUAP --- Open Questions Why were the USS Trepang photographs classified for decades? Do other submarines have similar encounters that remain hidden? What is the connection between USOs and known military technology?

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