MV Cory Chouest is an ocean surveillance ship leased by the U.S. Navy in 1989 and assigned to the Navy’s Special Missions Program. Cory Chouest had all SURTASS equipment removed and was returned to her original owners in 2008 completing nearly 20 years of service.[1]
Cory Chouest was acquired and modified by Edison Chouest Offshore for use by the U.S. Navy as a modified TAGOS vessel. Originally used as a research platform in conjunction with the Amy Chouest, the Cory was later modified to carry an active and passive sonar system. The vessel served until October 2008 when it went off charter.
Mission
The mission of Cory Chouest is to directly support the Navy by using both passive and active low frequency sonar arrays to detect and track undersea threats.
Operational history
In January 1991, the Cory Chouest and Amy Chouest were used as part of the Heard Island feasibility test, an experiment to transmit low frequency sound through the ocean from Heard Island in the Southern Indian Ocean[2] as far as both ocean coasts of the US and Canada.[3] The Cory Chouest was chosen because of its central moon pool and because it was already equipped with an array of low frequency transmitters. A phase-modulated 57Hz signal was used. The experiment was successful and demonstrated that such sound waves could travel as far as the antipodes. Planned transmissions had been for ten days, although owing to the bad weather conditions and the high failure rate of the transmitter elements, used at a frequency below their design frequency, the transmissions were terminated on the sixth day, when only two of the original ten transducers were still working.
Note
There is no journal entry on Cory Chouest at DANFS.
References
^. Archived from the original on 2011-06-07. Retrieved 2009-03-12.
Gordon D. Tyler, Jr.,″The Emergence of Low-Frequency Active Acoustics as a Critical Antisubmarine Warfare Technology", Johns Hopkins APL Technical Digest, Vol 13, No 1 (1992) p 145.
Chouest
PM2 - Special Mission Support Force
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cory, chouest, ocean, surveillance, ship, leased, navy, 1989, assigned, navy, special, missions, program, cory, chouest, surtass, equipment, removed, returned, original, owners, 2008, completing, nearly, years, service, historyunited, statesnamecory, chouestow. MV Cory Chouest is an ocean surveillance ship leased by the U S Navy in 1989 and assigned to the Navy s Special Missions Program Cory Chouest had all SURTASS equipment removed and was returned to her original owners in 2008 completing nearly 20 years of service 1 MV Cory ChouestHistoryUnited StatesNameCory ChouestOwnerEdison Chouest OffshoreLaunched6 April 1974Acquiredleased for 5 years by the U S Navy date unknownIn serviceas MV Cory Chouest in 1989IdentificationIMO number 7382536 MMSI number 303401000 Callsign WRYFFateReturned to Louisiana for redelivery to the ownersGeneral characteristicsTypeocean surveillance shipTonnage2 667 DWTLength265 Beam60 Draft14 Propulsiontwo diesels two shafts 4 000bhpSpeed11 knotsComplement16 civilian mariners 41 military and sponsorsSensors and processing systemsboth passive and active low frequency sonar arraysArmamentnone Contents 1 Construction 2 Mission 3 Operational history 4 Note 5 References 6 External linksConstruction EditCory Chouest was acquired and modified by Edison Chouest Offshore for use by the U S Navy as a modified TAGOS vessel Originally used as a research platform in conjunction with the Amy Chouest the Cory was later modified to carry an active and passive sonar system The vessel served until October 2008 when it went off charter Mission EditThe mission of Cory Chouest is to directly support the Navy by using both passive and active low frequency sonar arrays to detect and track undersea threats Operational history EditIn January 1991 the Cory Chouest and Amy Chouest were used as part of the Heard Island feasibility test an experiment to transmit low frequency sound through the ocean from Heard Island in the Southern Indian Ocean 2 as far as both ocean coasts of the US and Canada 3 The Cory Chouest was chosen because of its central moon pool and because it was already equipped with an array of low frequency transmitters A phase modulated 57Hz signal was used The experiment was successful and demonstrated that such sound waves could travel as far as the antipodes Planned transmissions had been for ten days although owing to the bad weather conditions and the high failure rate of the transmitter elements used at a frequency below their design frequency the transmissions were terminated on the sixth day when only two of the original ten transducers were still working Note EditThere is no journal entry on Cory Chouest at DANFS References Edit MSC 2008 in Review Special Mission Program Archived from the original on 2011 06 07 Retrieved 2009 03 12 The Heard Island Feasibility Test University of Washington 2007 Heard Island Feasibility Test reception map University of Washington 2007 External links EditNavSource Online Service Ship Photo Archive MV Cory Chouest Special Mission Program Archived 2008 09 13 at the Wayback Machine Military Sealift Command Ship Inventory MV Cory Chouest Ocean Surveillance Ship Gordon D Tyler Jr The Emergence of Low Frequency Active Acoustics as a Critical Antisubmarine Warfare Technology Johns Hopkins APL Technical Digest Vol 13 No 1 1992 p 145 Chouest PM2 Special Mission Support Force This article about a specific ship or boat of the United States Armed Forces is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title MV Cory Chouest amp oldid 1115960172, wikipedia, wiki, book, books, library,
