US Navy Ocean Surveillance Ships AGOS

Ocean Surveillance Ships (AGOS)

One element of the naval build-up of the 1980s was the construction of 18 Stalwart-class ocean surveillance ships, designed to monitor worldwide movements of Soviet submarines. Before they were even completed, however, the Cold War was over and they were no longer needed: all 18 moved on to new careers. A new class of four larger ships was then built,
which are still in service. A second new-class was started, but the first ship was a contractual disaster and the remainder were cancelled. Comments or queries, please email info@navalmarinearchive.com.

Most recent update: 5 August 2020.

Type	#	Original Name	Built by	Location	Hull #	LDT	LOA	Delivery	Disposition
AGOS	1	Stalwart	Tacoma Boat	Tacoma WA	403	1,600	224	9-Apr-84	To NYSMA 2002 as SUNY Maritime, sold 2011 as r/v Ocean Stalwart, active
AGOS	2	Contender	Tacoma Boat	Tacoma WA	404	1,600	224	5-Jun-84	To USMMA 1992 as Kings Pointer, to Texas MA 2012 as General Rudder, active
AGOS	3	Vindicator	Tacoma Boat	Tacoma WA	405	1,600	224	20-Nov-84	To NOAA 2002 as Hi'ialakai (R 334), active
AGOS	4	Triumph	Tacoma Boat	Tacoma WA	406	1,600	224	20-Feb-85	To NDRF 1994
AGOS	5	Assurance	Tacoma Boat	Tacoma WA	407	1,600	224	1-May-85	To Portugal 1995 as ALM Gago Coutinho (A 523), active
AGOS	6	Persistent	Tacoma Boat	Tacoma WA	408	1,600	224	14-Aug-85	To Great Lakes MA 2002 as State of Michigan, active
AGOS	7	Indomitable	Tacoma Boat	Tacoma WA	409	1,600	224	27-Nov-85	To NOAA 2002 as McArthur II (R 330), active
AGOS	8	Prevail	Tacoma Boat	Tacoma WA	410	1,600	224	4-Mar-86	Training ship (IX 537) 2003, active
AGOS	9	Assertive	Tacoma Boat	Tacoma WA	411	1,600	224	9-Sep-86	To NOAA 2004, to Seattle MA 2008
AGOS	10	Invincible	Tacoma Boat	Tacoma WA	412	1,600	224	30-Jan-87	Converted to T-AGM 24 2000, active
AGOS	11	Audacious	Tacoma Boat	Tacoma WA	448	1,600	224	12-Jun-89	To Portugal 1996 as Dom Carlos I (A 522), active
AGOS	12	Bold	Tacoma Boat	Tacoma WA	449	1,600	224	20-Oct-89	To EPA 2004 as Bold (OSV 224), to Seattle MA 2013
AGOS	13	Adventurous	Halter Marine	Moss Point MS	M230	1,600	224	19-Aug-88	To NOAA 1992 as Oscar Elton Sette (R 335), active
AGOS	14	Worthy	Halter Marine	Moss Point MS	M231	1,600	224	4-Apr-88	To US Army 1995 as WAGM
AGOS	15	Titan	Halter Marine	Moss Point MS	M232	1,600	224	8-Mar-89	To NOAA 1993 as Ka'imimoana (R 333), active
AGOS	16	Capable	Halter Marine	Moss Point MS	M233	1,600	224	9-Jun-89	To NOAA 2004 as Okeanos Explorer (R 337), active
AGOS	17	Tenacious	Halter Marine	Moss Point MS	M234	1,600	224	29-Sep-89	To New Zealand 1997 as Resolution (A 14), for sale 2012
AGOS	18	Relentless	Halter Marine	Moss Point MS	M235	1,600	224	12-Jan-90	To NOAA 1993 as Gordon Gunter (R 336), active
AGOS	19	Victorious	McDermott	McDermott	279	3,100	235	13-Aug-91	Active
AGOS	20	Able	McDermott	McDermott	287	3,100	235	22-Jul-92	Active
AGOS	21	Effective	McDermott	McDermott	288	3,100	235	27-Jan-93	Active
AGOS	22	Loyal	McDermott	McDermott	289	3,100	235	1-Jul-93	Active
AGOS	23	Impeccable	Tampa Shipyards	Tampa FL		2,800	281	13-Oct-00	Completed by Halter Marine, active
AGOS	24	Integrity	Tampa Shipyards	Tampa FL		2,800	281		Cancelled
AGOS	25-30		Tampa Shipyards	Tampa FL		2,800	281		Cancelled
AGOS	31-37		VT Halter Marine	Moss Point MS					Design development

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