Seen here at Traverse City, MI 9/8/2007

Built in 1986 as the T-AGOS Persistent for the US Navy given to Great Lakes Maritime Academy in 2002
Builder: Tacoma Boatbuilding, Tacoma, Wash.
Power Plant: Diesel-electric; 4 Caterpillar D 398 diesel generators, 3,200 hp, 2 motors, 1,600 hp; 2 shafts; bow thruster; 550 hp
Length: 224 feet (68 meters)
Beam: 43 feet (13 meters)
Displacement: 2,262 tons (2,298.3 metric tons) full load
Speed: 11 kts (12.65 mph), 3 kts when towing array