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Stalwart-class
Stalwart as originally configured. Aft view of equipment for the Surveillance Towed-Array Sensor System (SURTASS), 1986.
USNS Stalwart
Class overview
Builders
Operators
Preceded byNone
Succeeded byVictorious class
In serviceApril 12, 1984
Completed23
Active5 not stricken by Naval Vessel Register
General characteristics
Displacement1,565 t.(lt) 2,535 t.(fl)
Length224 ft (68 m)
Beam43 ft (13 m)
Draft15 ft (4.6 m)
Propulsiondiesel-electric, two shafts, 1,600 hp (1,200 kW)
Speed11 knots (20 km/h; 13 mph)
Complement36

Stalwart-class auxiliary general ocean surveillance ships (T-AGOS) are a class of United States Naval Ship (USNS) auxiliary support Ocean Surveillance Ships commissioned between April 1984 and October 2000. Their original purpose was to collect underwater acoustical information using the Surveillance Towed Array Sensor System (SURTASS), a towed array passive sonar.

Stalwart, Indomitable, and Capable were modified to support narcotics interdiction by removing SURTASS equipment and adding an air-search radar and tactical data link equipment.[1]

Units

Ship Name Hull No. Delivery-
Stricken 		Fate Link
Stalwart 1 1984–2002 State University of New York Maritime College NVR NavSource
Contender 2 1984–1992 T/V General Rudder, flagship and training vessel of the Texas A&M University at Galveston NVR NavSource
Vindicator 3 1984–1993 NOAA Hi'Ialakai (R-334) NVR NavSource NOAA
Triumph 4 1985–1995 Stricken, to be disposed of in support of Fleet training exercise NVR NavSource
Assurance 5 1985–1995 Transferred to Portugal as NRP Almirante Gago Coutinho (A523) NVR NavSource
Persistent 6 1985–1995 T/S State of Michigan, Great Lakes Maritime Academy, Traverse City, Michigan NVR NavSource NMC
Indomitable 7 1985–2002 NOAA McArthur II (R-330) NVR NavSource NOAA
Prevail 8 1986– Reclassified as Unclassified miscellaneous vessel Prevail (IX-537) NVR NVR NavSource
Assertive 9 1986–2004 Transferred to NOAA to be converted FY 2007 and to replace NOAA David Starr Jordan. Damaged during a fire at NOAA's pier in Seattle Washington July 2006, transferred to Seattle Maritime Academy. (R 444) in FY 2008 NVR NavSource
Invincible 10 1987– Converted to T-AGM 24, Missile Range Instrumentation Ship NVR NavSource MSC
Audacious 11 1989–1997 Transferred to Portugal as NRP Dom Carlos I (A522) NVR NavSource
Vigorous, renamed Bold 12 1989–2004 EPA Bold (OSV-224) until ~2013. Converted to R/V Bold Explorer, EGS Group, 2020.[2] NVR NavSource EPA
Adventurous 13 1988–1992 NOAA Oscar Elton Sette (R-335) NVR NavSource NOAA
Worthy 14 1988–1993 Transferred to USGS, then to the US Army. Converted to a Missile Range Instrumentation Ship at Kwajalein Atoll's Ronald Reagan Ballistic Missile Defense Test Site NVR NavSource KMRSS
Titan 15 1989–1993 NOAA Ka'Imimoana (R-333) until June 18, 2014; Research/Survey Vessel Ocean Titan IMO: 8835231 survey vessel own by Stabbert Maritime NVR NavSource NOAA
Capable 16 1989–2004 NOAA Okeanos Explorer (R-337) NVR NavSource NOAA
Tenacious 17 1987–1997 Transferred to New Zealand as HMNZS Resolution (A14) (1997-2012), then sold into civilian service to EGS Group and renamed RV Geo Resolution NVR NavSource
Relentless 18 1990–1993 NOAA Gordon Gunter (R-336) NVR NavSource NOAA

References

  1. ^ The US Navy Archived 2005-11-30 at the Wayback Machine
  2. ^ "Second ex-US Navy surveillance ship joins EGS fleet". Baird Maritime. 30 April 2020. Retrieved 29 December 2023.
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