USNS ''Persistent'' (T-AGOS-6) was a ''Stalwart''-class Modified Tactical Auxiliary General

Ocean Surveillance Ship ''Stalwart''-class auxiliary general ocean surveillance ships ( T-AGOS) were a class of United States Naval Ship (USNS) auxiliary support Ocean Surveillance Ships commissioned between April 1984 and January 1990. Their original purpose was to c ...

of the

United States Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...

. Stalwart-class ships were originally designed to collect underwater acoustical data in support of Cold War

anti-submarine warfare Anti-submarine warfare (ASW, or in older form A/S) is a branch of underwater warfare that uses surface warships, aircraft, submarines, or other platforms, to find, track, and deter, damage, or destroy enemy submarines. Such operations are t ...

operations in the 1980s. Ex-USNS ''Persistent'' is now T/S ''State of Michigan'', owned by the

U.S. Department of Transportation The United States Department of Transportation (USDOT or DOT) is one of the executive departments of the U.S. federal government. It is headed by the secretary of transportation, who reports directly to the President of the United States and ...

's Maritime Administration and assigned to the

Great Lakes Maritime Academy The Great Lakes Maritime Academy at Northwestern Michigan College is located on West Grand Traverse Bay in Traverse City, Michigan. The academy was established in 1969 as a Maritime college to train men and women to be licensed mariners on ships ...

Traverse City, Michigan Traverse City ( ) is a city in the U.S. state of Michigan. It is the county seat of Grand Traverse County, although a small portion extends into Leelanau County. It is the largest city in the 21-county Northern Michigan region. The population wa ...

.T/S State of Michigan, Great Lakes Maritime Academy
/ref>

Design

The ''Stalwart''-class ocean surveillance ships were succeeded by the longer ''Victorious''-class ocean surveillance ships. ''Persistent'' had an overall length of and a length of at its waterline. It had a

beam Beam may refer to: Streams of particles or energy *Light beam, or beam of light, a directional projection of light energy **Laser beam *Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially localized grou ...

of and a

draft Draft, The Draft, or Draught may refer to: Watercraft dimensions * Draft (hull), the distance from waterline to keel of a vessel * Draft (sail), degree of curvature in a sail * Air draft, distance from waterline to the highest point on a vesse ...

of . The surveillance ship had a displacement of at light load and at full load. It was powered by a diesel-electric system of four Caterpillar D-398 diesel-powered generators and two

General Electric General Electric Company (GE) is an American multinational conglomerate founded in 1892, and incorporated in New York state and headquartered in Boston. The company operated in sectors including healthcare, aviation, power, renewable en ...

electric motors. This produced a total of that drove two shafts. It had a gross register tonnage of 1,584 and a deadweight tonnage of 786. The ''Stalwart''-class ocean surveillance ships had maximum speeds of . They were built to be fitted with the

Surveillance Towed Array Sensor System The AN/UQQ-2 Surveillance Towed Array Sensor System (SURTASS), colloquially referred to as the ship's "Tail", is a towed array sonar system of the United States Navy. SURTASS Twin-Line consists of either the long passive SURTASS array or the Twi ...

(SURTASS) system. The ship had an endurance of thirty days. It had a range of and a speed of . Its complement was between thirty-two and forty-seven. Its hull design was similar to that of the ''Powhatan''-class fleet ocean tugs.

References

External links

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NavSourceNMC
{{DEFAULTSORT:Persistent (T-AGOS-6) Stalwart-class ocean surveillance ships Cold War auxiliary ships of the United States Training ships of the United States Ships built by Tacoma Boatbuilding Company 1985 ships