USNS Persistent (T-AGOS-6)

USNS Persistent (T-AGOS-6) was a Stalwart-class Modified Tactical Auxiliary General Ocean Surveillance Ship of the United States Navy.

For ships with similar names, see USS Persistent.
USNS Persistent (T-AGOS-6)
History
United States
Awarded: 13 February 1981
Builder: Tacoma Boatbuilding Company
Laid down: 22 October 1984
Launched: 6 April 1985
In service: 14 August 1985
Out of service: 12 October 1994
Struck: 6 January 1995
Identification:
Fate: Transferred to Great Lakes Maritime Academy
General characteristics
Class and type: Stalwart-class ocean surveillance ship
Displacement: 1,565 tons (light) 2,535 tons (full)
Length: 224 ft (68 m)
Beam: 43 ft (13 m)
Draft: 15 ft (4.6 m)
Speed: 11 knots (20 km/h; 13 mph)

Stalwart-class ships were originally designed to collect underwater acoustical data in support of Cold War anti-submarine warfare operations in the 1980s. Ex-USNS Persistent is now T/S State of Michigan, owned by the U.S. Department of Transportation's Maritime Administration and assigned to the Great Lakes Maritime Academy, Traverse City, Michigan.[1]

Design

The Stalwart-class ocean surveillance ships were succeeded by the longer Victorious-class ocean surveillance ships. Persistent had an overall length of 224 feet (68 m) and a length of 203 feet 6 inches (62.03 m) at its waterline. It had a beam of 43 feet (13 m) and a draft of 15 feet (4.6 m). The surveillance ship had a displacement of 1,600 tonnes (1,600 long tons; 1,800 short tons) at light load and 2,301 tonnes (2,265 long tons; 2,536 short tons) at full load. It was powered by a diesel-electric system of four Caterpillar D-398 diesel-powered generators and two General Electric 550 metric horsepower (540 shp; 400 kW) electric motors. This produced a total of 3,200 metric horsepower (3,200 shp; 2,400 kW) that drove two shafts. It had a gross register tonnage of 1,584 and a deadweight tonnage of 786.[2]

The Stalwart-class ocean surveillance ships had maximum speeds of 11 knots (20 km/h; 13 mph). They were built to be fitted with the Surveillance Towed Array Sensor System (SURTASS) system. The ship had an endurance of thirty days. It had a range of 3,000 miles (2,600 nmi; 4,800 km) and a speed of 11 knots (20 km/h; 13 mph). Its complement was between thirty-two and forty-seven. Its hull design was similar to that of the Powhatan-class fleet ocean tugs.[2]

References
  1. T/S State of Michigan, Great Lakes Maritime Academy
  2. Norman Polmar (2005). The Naval Institute Guide to the Ships and Aircraft of the U.S. Fleet. Naval Institute Press. p. 617. ISBN 978-1-59114-685-8.



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