Submarine magnetism

January 07, 2021 11:00 pm • Last Updated: January 08, 2021 9:38 pm

By Sean D. Elliot
Director of Photography

The Thames Towboat Co. tugs Paul A. Wronowski and John P. Wronowski guide the U.S. Navy Virginia-class attack submarine USS Vermont (SSN 792) through a 180-degree turn Friday, Jan. 8, 2021, as the submarine prepares to make a pass through the magnetic silencing range in the Thames River between the Electric Boat Shipyard in Groton and Fort Trumbull State Park in New London. (Sean D. Elliot/The Day)
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The Thames Towboat Co. tugs Paul A. Wronowski and John P. Wronowski were guiding the U.S. Navy Virginia-class attack submarine USS Vermont (SSN 792) through a 180-degree turn Friday as the submarine prepared to make a pass through the Navy's magnetic silencing range in the Thames River between the Electric Boat Shipyard in Groton and Fort Trumbull State Park in New London.

The control office for the range is housed in building 109 at the park. The facility, the only one the Navy has in the Northeast, measures the magnetic characteristics of naval vessels passing through.

The Thames River range was replaced in 2012, and will be be relocated in the future to avoid conflict with the new floating dry dock facility under construction at EB.

The Vermont is the 19th boat in the class and was commissioned in April 2020 in Groton.

The Thames Towboat Co. tugs Paul A. Wronowski, right, and John P. Wronowski, back, guide the U.S. Navy Virginia-class attack submarine USS Vermont (SSN 792) away from the Naval Submarine Base in Groton on Friday, Jan. 8, 2021, for multiple passes through the Navy's magnetic silencing range in the Thames River between Electric Boat in Groton and Fort Trumbull State Park in New London. (Sean D. Elliot/The Day)
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The Thames Towboat Co. tug John P. Wronowski, back, helps guide the U.S. Navy Virginia-class attack submarine USS Vermont (SSN 792) away from the Naval Submarine Base in Groton on Friday, Jan. 8, 2021, for multiple passes through the Navy's magnetic silencing range in the Thames River between Electric Boat in Groton and Fort Trumbull State Park in New London. (Sean D. Elliot/The Day)
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The Thames Towboat Co. tugs Paul A. Wronowski and John P. Wronowski guide the U.S. Navy Virginia-class attack submarine USS Vermont (SSN 792) through a 180-degree turn Friday, Jan. 8, 2021, as the submarine prepares to make a pass through the Navy's magnetic silencing range in the Thames River between the Electric Boat Shipyard in Groton and Fort Trumbull State Park in New London. (Sean D. Elliot/The Day)
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