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Coast Guard begins HVAC upgrade on second 140-foot ice-breaking tug

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Coast Guard Cutter Thunder Bay arrived for In-Service Vessel Sustainment work at the Coast Guard Yard in Baltimore, Maryland, April 19, 2021. The 140-foot icebreaking tug will receive HVAC system upgrades that will increase heating capacity. Thunder Bay is the second of nine cutters to receive the upgraded systems. U.S. Coast Guard photo by Petty Officer 2nd Class Ronald Hodges.

For more information: In-Service Vessel Sustainment program page