140 Foot Icebreaking Tugs Get New Davits

140 foot icebreaking tug with new davit

The In-service Vessel Sustainment Program modifications for the 140 foot domestic icebreaking tugs include a new davit that should make boat launching much quicker and easier. Compare the photo above with the earlier photo below. You can see that the O-1 deck has been extended out to the side of the hull and the new davit replaced a kingpost style derrick. Here is the vendor’s press release that provided the more recent photo.

Katmai Bay (WTGB 101) is tied to the pier at Group Sault Saint Marie, Michigan, Sept. 2001. USCG photo by PA1 Harry C. Craft III

Thanks to Lee for bringing this to my attention. 

1 thought on “140 Foot Icebreaking Tugs Get New Davits

  1. The eight 140 ft icebreaking tug has completed the service life extension modifications. Only one more to go. https://www.dcms.uscg.mil/Our-Organization/Assistant-Commandant-for-Acquisitions-CG-9/Newsroom/Latest-Acquisition-News/Article/1984299/renovation-completed-on-eighth-140-foot-icebreaking-tug/

    “Coast Guard Cutter Mobile Bay departed from the Coast Guard Yard in Curtis Bay, Maryland, Oct. 1, following completion of its service life extension project as part of the In-Service Vessel Sustainment (ISVS) Program. Mobile Bay is the eighth of nine 140-foot icebreaking tugs to undergo service life extension work through ISVS. The work will extend each cutter’s service life by 15 years and includes upgrades to propulsion and electrical systems, replacement of the boat-launching davit and habitability improvements. The tugs entered service in the 1970s. Mobile Bay will return to Sturgeon Bay, Wisconsin.

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