240-foot Seagoing Buoy Tender/ Icebreaker (WLBB-30)
Characteristics:
Length: 240 feet
Beam: 58 feet
Displacement: 3350 tons
Power plant: 3 Caterpillar 3612 Turbocharged V-12 engines
Commissioned: June 10, 2006
CGC MACKINAW (WLBB 30) was commissioned June 10, 2006, assuming the primary duties of icebreaking and Aids to Navigation from CGC MACKINAW (WAGB 83), decommissioned the same day. MACKINAW is homeported in Cheboygan, Michigan.