page_title: USCGC Mackinaw (WLBB-30)
section_title: Mechanical specifications
hierarchical_section_title: USCGC Mackinaw (WLBB-30) / Mechanical specifications
caption_attribution_description: English: Main Control Console on the U.S. Coast Guard Cutter (USCGC) Mackinaw . The Conning Officer uses these controls to set the orientation and speed of the two Azipods that propel the vessel. The Azipods can rotate 360 degrees horizontally to move the ship in any direction. Seen during the Cutter Mackinaw's 2011 visit to the Lower Harbor in Marquette, Michigan.
context_page_description: USCGC Mackinaw (WLBB-30) is a 240-foot vessel built as a heavy icebreaker for operations on the North American Great Lakes for the United States Coast Guard. IMO number: 9271054. She should not be confused with a namesake ship, the USCGC Mackinaw, IMO number 6119534, which was decommissioned on June 10, 2006.
context_section_description: One of the Mackinaw's unique features in the US Coast Guard fleet is the use of two Azipod units, ABB's brand of electric azimuth thrusters, for her main propulsion.  These, coupled with a 550 hp (410 kW) bow thruster, make the ship exceptionally maneuverable.  The Azipod units also remove the need for a traditional rudder, as the thrusters can turn 360 degrees around their vertical axis to direct their thrust in any direction. The Mackinaw also lacks a traditional ship's steering wheel. Much of the ship’s technology, including the Azipod thrusters, is from Finnish Maritime Cluster. Additionally, the Mackinaw can continuously proceed through fresh water ice up to 32 inches (81 cm) thick at 3 knots or 14 inches (36 cm) at 10 knots.  She can also break smooth, continuous ice up to 42 inches (107 cm) thick through ramming.
caption: Mackinaw's Main Control Console, which is used to steer the ship instead of a steering wheel.
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