Keystone State-class crane ship

SS Keystone State (T-ACS-1)
Class overview
NameKeystone State
BuildersVarious
Operators United States Navy
Built1984-1997
Completed10
Active6
Laid up4
General characteristics
TypeCrane Ship
Displacement26670 tons
Length610 ft 0 in (95.82 m)
Beam78 ft 0 in (9.43 m)
Draft32 ft
PropulsionSteam Turbine, 12,758 SHP
Speed17 knots
Complement78 mariners

The Keystone State-class crane ships are seven auxiliary crane ships of the U.S. Maritime Administration Ready Reserve Force. The ships can be quickly activated to support military sea transportation needs. These self-sustaining ships are useful in ports that have limited, damaged or undeveloped port facilities. When activated, they come under operational control of Military Sealift Command.