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Station HYPO

Celebrating the Past, Present and Future of Navy Cryptology

Part 3 of 6: Introduction to Navy Cryptology. – Continuity of transmitter using callsigns

This is the third video in a six-part series examining the history of Navy cryptology, with particular emphasis on the role and development of traffic analysis.

Part 2 of 6: Introduction to Navy Cryptology –  Traffic Analysis terminology

This is the second video in a six-part series examining the history of Navy cryptology, with particular emphasis on the role and development of traffic analysis.

History of U.S. Navy Cryptology (Part 1 of 6)

This is the first video in a six-part series examining the history of Navy cryptology, with particular emphasis on the role and development of traffic analysis.

Japanese Maritime Codebook, 1941

This codebook was forcibly taken six months prior to WWII from the radio operator of the Japanese tanker Nisshin Maru on May 28, 1941, by George A. Muller, an inspector with the U.S. Customs Service. The seizure occurred while the vessel was docked in San Francisco, under the pretext of conducting a search for narcotics.

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Project AZORIAN

On March 18 1975, CIA’s highly-classified 1974 mission known as Project AZORIAN was exposed through a nationally broadcast syndicated report. In one of the Agency’s largest and most expensive ventures to that date, CIA worked with the U.S. Navy and billionaire Howard Hughes in dispatching the Glomar Explorer salvage vessel to raise a portion of a sunken Soviet nuclear ballistic submarine from the depths of the Pacific Ocean.

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Corry Field/Station Time-Line


The following are major events that occurred at Corry Field/Station.  This timeline does not include aviation training that started in 1934.

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