GREEN MOUNTAIN STATE


Green_Mountain_State_Photos_Page_1.jpg
Year Built
1965
Official Number
298129
Shipyard
Ingalls Shipbuilding Corporation
General Type
MARAD (NDRF - RRF) Auxiliary
Specific Type
T-ACS Auxiliary Crane Ship
MARAD Type
--
Ship Length
665.80 feet
Beam
75.00 feet
Mast Height
--
Net Tons
8560.00 tons
Gross Tons
10599.00 tons
Cargo Capacity
45750.00 square feet
Draft, Summer
31.60 tons
Draft, Lightweight
--
Displacement, Summer
27898.00 tons
Displacement, Lightweight
16319.00 tons
Immersion, Summer
--
Immersion, Lightweight
--
Fate
Still in Govt. Service

Historical Narrative



Green Mountain State is an Auxiliary Crane Ship (T-ACS).   T-ACS vessels are designed to offload commercial, non self-sustaining containerships in undeveloped or damaged ports.  Green Mountain State was originally built for Moore-McCormack Lines in 1965 as the break-bulk cargo ship Mormacaltair.  The ship was later “jumboized” and converted to a self-sustaining cellular containership. 

Moore-McCormack sold the vessel to United States Lines, which renamed it, American Altair.  In 1987, American Altair entered the Beaumont Reserve Fleet in Beaumont, Texas, in preparation for a Maritime Administration/Military Sealift Command-directed conversion to a crane ship, which took place from February 1989 to September 1990. 

The Maritime Administration purchased the vessel outright in March 1992 and it served in the Ready Reserve Force (RRF) until it was downgraded to the National Defense Reserve Fleet in July 2006. 

The vessel is currently part of the NDRF retention program, where it is in logistic support status as a source of major equipment spares for its sister ship Pacific Tracker (formerly the RRF vessel Beaver State).

Vessel Name History

1965 - 1983: Mormacaltair
1983 - 1989: American Altair
1989 - present: Green Mountain State


Vessel Name History

AMERICAN ALTAIR

GREEN MOUNTAIN STATE

MORMACALTAIR

Mission

No Mission for this vessel

Historical Documents
Name Download

Milestones


Event Date Content
Ship Name Change
(No Date) Ship AMERICAN ALTAIR changes name to GREEN MOUNTAIN STATE
Entry
3/10/1987
Acquisition
3/10/1987
Interim Movement
10/29/1997 Under tow to Vancouver WA Trm 1/Brth 14
Interim Movement
10/29/1997 At outport terminal 1 berth 14
Interim Movement
12/18/1997 ENRTE: Portland OR for drydocking
Interim Movement
12/18/1997 At Cascade General S/Y for drydocking
Interim Movement
1/5/1998 ENRTE: Berth in Vancouver WA
Interim Movement
1/5/1998 Berthed at Term #4 berth 14 (homeport)
Interim Movement
12/9/1999 No Notice Turbo Activation seatrial 00-1
Interim Movement
12/11/1999 Completed TA 00-1 / New homeport
Interim Movement
12/8/2000 Conducting annual M&R sea trial
Interim Movement
12/9/2000 Completed M&R sea trial
Interim Movement
6/6/2002 Conducting maintenance sea trial
Interim Movement
6/7/2002 Completed maintenance sea trial
Interim Movement
8/26/2002 Depart to accomodate BEAVER STATE on TA
Interim Movement
8/30/2002 Returned to Berth G.
Interim Movement
10/3/2002 Turbo Activation sea trial 02-04
Interim Movement
10/6/2002 Completed Turbo Activation 02-04 S/T
Interim Movement
1/5/2003 ENRTE:Cascade General S/Y for drydocking
Interim Movement
1/6/2003 In for drydocking
Interim Movement
3/3/2003 Maintenance activation and sea trial
Interim Movement
3/4/2003 Completed sea trial
Interim Movement
5/7/2003 ENRTE: Bremerton Naval Station
Interim Movement
5/7/2003 Complete relocation to original berth
Interim Movement
8/23/2003 Turbo Activation sea trial
Interim Movement
8/26/2003 Completed Turbo Activation sea trial

7/28/2006

Ship Imagery




Status Cards



Documents


Date Type Name Download
9/1/2023 National Register Eligibility Assessment Green Mountain State.pdf Default Generic Download Image

Plans


No documents for this vessel


Shipwreck Information


No ship wreck information for this vessel