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Carderock Assists in Calibration Trials of USNS John Lewis
May 24, 2023 — The U.S. Navy protects its surface ships and submarines from underwater magnetic influence mines through a two-step process consisting of magnetic treatment followed by degaussing system calibration, typically at the beginning of the ship or boat’s service life. USNS John Lewis (T-AO 205) underwent treatment and calibration at Naval Base Point Loma in San Diego in March. Personnel from Naval Surface Warfare Center (NSWC), Carderock Division and NSWC Philadelphia Division, Naval Undersea Warfare Center, Division Keyport's San Diego Detachment, as well as Naval Sea Systems Command (NAVSEA) were involved in the trial. Carderock served as the In-Service Engineering Agent for the degaussing system that was being calibrated. The purpose of the trial was to minimize the ship’s susceptibility to underwater mines... MORE

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