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NavSource Online: Service Ship Photo Archive

SS Green Mountain State (ACS-9)

Keystone State Class Crane Ship):
  • Laid down, 2 December 1963, as the breakbulk ship, SS Mormacaltair, a Maritime Administration type (C6-S-60a) hull, under Maritime Administration contract (MA 143) at Ingalls Shipbuilding Inc., Pascagoula, MS.
  • Launched, 20 August 1964
  • Delivered to the Moore-McCormack Lines, 26 March 1965
  • Renamed SS American Altair, date unknown
  • Reacquired by the Maritime Administration (MARAD) in 1987
  • Converted to a MARAD type hull (C6-S-MA60d) Crane Ship at National Steel and Shipbuilding Co., San Diego, CA.
  • Assigned by the Maritime Administration to the Ready Reserve Force, (RRF), under operation control of the Military Sealift Command (MSC)
  • Placed in service as SS Green Mountain State (ACS-9), 15 March 1992
  • Green Mountain State was berthed at Bremerton, WA. and assigned to Maritime Prepositioning Ship Squadron Three and was maintained in a five-day readiness status
  • Removed from MSC control, withdrawn from the RRF by reassignment to the National Defense Reserve Fleet, 28 July 2006
    Displacement 11,714 t.(lt) 31,500 t.(fl)
    Length 668' 6"
    Beam 76' 1"
    Draft 33' 5"
    Speed 20.4 kts.
    Cargo Capacity 300+ standard containers
    Complement Reserve operational status 10 civilian mariners
    Armament none
    two General Electric turbines
    two boilers
    single propeller, 19,250shp
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    Size Image Description Source
    Commercial Service
    Cornhusker State 73k Moore-McCormack Lines SS Mormacaltair underway in the Panama Canal in 1970. Richard Miller BMCS USNR Ret.
    Cornhusker State 124k Moore-McCormack Lines SS Mormacaltair underway, date and location unknown.  
    SS Green Mountain State (ACS-9) MARAD RRF
    Green Mountain State 56k SS Green Mountain State (T-ACS-9) moored pierside in a shipyard, date and place unknown. Note APL-44 moored to starboard of Green Mountain State.
    US Maritime Administration photo.
    MARAD web site
    Green Mountain State 75k SS Green Mountain State (ACS-9) underway, date and location unknown.
    US Navy photo.
    MSC web site
    Green Mountain State 1349k SS Green Mountain State (ACS-9) laid up in reserve in the National Defense Reserve Fleet, Suisun Bay Group, Benecia, CA., 24 July 2011.
    Photo by Christopher Thomas Mason.
    Robert Hurst

    There is no DANFS history available for Green Mountain State (T-ACS-9) at NavSource
    Additional Resources and Web Sites of Interest
    US Navy Fact File - Auxiliary Crane Ships - ACS
    Back To The Main Photo Index Back To The Service Force Ship Type Index Back To The Crane Ship (ACS) Photo Index
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    This page is created and maintained by Gary P. Priolo
    All pages copyright NavSource Naval History
    Last Updated 2 March 2012