These classic icebreaking tugs served the Coast Guard well for 30 to 40 years, and were so good at their jobs that several of them ended up in commercial service on the Great Lakes. However, only three remain in service.
- Danicia (former WYTM-96 Chinook)*
- Erika Kobasic (former WYTM-90 Arundel)
- Manitou (former WYTM-60 Manitou)
- Jimmy L (former WYTM-92 Naugatuck)
- Apalachee (former WYTM-71 Apalachee)*
*Indicates currently inactive tug