Military Wiki
USS Michigan (SSGN-727)
USS Michigan (SSBN-727)
USS Michigan (SSBN-727)
Career (US)
Namesake: US state of Michigan
Ordered: 28 February 1975
Builder: General Dynamics Electric Boat
Laid down: 4 April 1977
Launched: 26 April 1980
Commissioned: 11 September 1982
Homeport: Bangor, Washington
Motto: Tuebor ("I will defend")
Status: in active service, as of 2022
Badge: USS Michigan SSGN-727 Crest.png
General characteristics
Class & type: Ohio-class
  • 16,764 metric tons (16,499 long tons) surfaced[1][2]
  • 18,750 metric tons (18,450 long tons) submerged[1]
Length: 560 ft (170 m)
Beam: 42 ft (13 m)[1]
Draft: 38 ft (12 m)
  • 1 × S8G PWR nuclear reactor[1]
  • 2 × geared turbines[1]
  • 1 × 325 hp (242 kW) auxiliary motor
  • 1 × shaft @ 60,000 shp (45,000 kW)[1]
Speed: Greater than 25 knots (46 km/h; 29 mph)[3]
Test depth: Greater than 800 feet (240 m)[3]
  • 4 × 21 in (533 mm) torpedo tubes
  • 154 × BGM-109 Tomahawks in 22 groups of seven
  • USS Michigan (SSBN-727/SSGN-727) is the second Ohio-class nuclear-powered guided missile submarine in the United States Navy. She is the third ship to bear the name of the state of Michigan.

    Construction and commissioning

    Michigan was constructed at the Electric Boat Division of General Dynamics Corporation in Groton, Connecticut and was commissioned on 11 September 1982. Michigan arrived in Bangor, Washington on 16 March 1983 and completed sixty-six Strategic Deterrent Patrols.

    Conversion to SSGN

    As of June 2007, Michigan has been converted to an SSGN at the Puget Sound Naval Shipyard.[4] Her hull classification symbol then changed from SSBN-727 to SSGN-727. See the section on SSGN conversions of the Ohio-class article for more information.

    On 12 December 2009, Michigan returned to Naval Base Kitsap, her home base, completing her first deployment after the SSGN conversion. The deployment began 10 November 2008, and included numerous missions. The ship also completed several theater security cooperation engagements with Pacific Rim nations.[5]


    This article includes information collected from the Naval Vessel Register and various news articles.

    External links

    This page uses Creative Commons Licensed content from Wikipedia (view authors).