Seen here in the Port of New Orleans tied up alongside her sister ship ALTAIR.

Launched: February 1, 1973
Delivered to Sea-Land Services, Inc., Port Elizabeth, N.J.: April 1,1973
Purchased by the Navy: October 13, 1981
Conversion started: October 22, 1982
Delivered: September 10, 1984
Builder: Rheinstahl Nordseewerke, Emden, West Germany
Conversion yard: National Steel and Shipbuilding, San Diego, CA
Propulsion system: two Foster-Wheeler boilers, 875 psi (61.6kg/cm2); 9500F (5100C) and two GE MST-19 steam turbines; 120,000 hp (89.5 MW)
Propellers: two
Length: 946.2 feet (288.4 meters)
Beam: 105.6 feet (32.2 meters)
Draft: 36.4 feet (11.1 meters)
Displacement: approx. 55,355 tons full load
Speed: 33 knots
Aircraft: helicopter landing area only
Armament: none
Capacity: more than 700 Army vehicles (including tanks, trucks, and helicopters)
Crew: 43 civilians, 12 military technicians (fully operational); 18 civilians (reduced operating status)
Homeport: Marrerro, LA

http://navysite.de/akr/akr288.htm
http://en.wikipedia.org/wiki/SS_Bellatrix_%28T-AKR-288%29