USCGC Mackinaw (WLBB-30)

History
United States
Builder	Marinette Marine Corporation (MMC)
Laid down	February 09, 2004
Launched	April 2, 2005
Commissioned	June 10, 2006
Homeport	Cheboygan, Michigan
Identification	IMO number: 9271054; MMSI number: 369992000; Callsign: NBGB;
General characteristics
Displacement	3,500 tons
Length	240 ft (73 m)
Beam	58.5 ft (17.8 m)
Draft	16 ft (4.9 m)
Propulsion	Integrated Main Propulsion & Electrical Plant; ABB Azipod - Fixed Pitch, 10’ diameter; 9,119 shp (6.8 MW);
Speed	16 knots (30 km/h)
Complement	9 Officers, 46 Enlisted
Armament	2 x machine guns; Various small arms;
Capacity	130,896 US gal (495 kl) (Diesel fuel); 27,500 US gal (104 kl) (potable water);

USCGC Mackinaw (WLBB-30) is a 240-foot (73 m) multi-purpose vessel with a primary mission as a heavy Great Lakes icebreaker specifically built for operations on the North American Great Lakes for the United States Coast Guard. Her IMO number is 9271054.

Her larger precursor, the USCGC Mackinaw (WAGB-83), IMO number 6119534, had a 62-year career on the same waters prior to being decommissioned on June 10, 2006, and turned into a museum ship docked in Mackinaw City, Michigan.

Among the missions the current Mackinaw is capable of and tasked with as needed is buoy tending, law enforcement and interdiction, search and rescue, and environmental remediation response.