The Amy Chouest was an offshore supply vessel . She was chartered, for a time, by the United States Government , which used her as a research vessel. She was struck by an explosion, in 1992, that killed two researchers.
6-494: The Amy Chouest was chartered to supplement the Cory Chouest , a similar vessel on a long-term charter to conduct research that used very loud underwater noises. Sounds in the range 10,000,000 joules were used. The Amy Chouest was chartered to research the impact of the massive noise on marine life. The two deaths occurred on March 11, 1992. The two men, Mike Sinclair, and Lee Roy Burks, worked for Marine Specialty ,
12-470: A firm hired to carry out some of the research. A depth charge accidentally exploded on deck, killing the men, but without causing significant damage to the ship. Ian Anderson, writing in New Scientist , reported that environmental activists were concerned the loud noises would deafen marine animals. United Press International speculated that the deaths occurred during an experiment that included
18-679: 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 as far as both ocean coasts of the US and Canada. 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
24-570: The covert involvement of Trident submarines , based on initial Navy reports that said that submarines hadn't surfaced, or fired any weapons, at the time of the explosion. MV Cory Chouest 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. Cory Chouest
30-666: 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. 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. In January 1991,
36-439: 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. There
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