en USNS Effective

	USNS Effective (T-AGOS-21)
History
United States
Name	USS Effective
Operator	United States Navy
Awarded	7 October 1988
Builder	Mc Dermott Shipyards, Morgan City, Louisiana
Laid down	15 February 1991
Launched	26 September 1991
Acquired	27 January 1993
Identification	IMO number: 8923997; MMSI number: 367836000; Callsign: NCWL;
Honors and; awards	National Defense Service Medal
Status	in active service
General characteristics
Type	Victorious-class ocean surveillance ship
Tonnage	3,100 tons
Displacement	3,384 tons
Length	235 ft (72 m)
Beam	94 ft (29 m)
Draft	24 ft (7.3 m) (max)
Propulsion	diesel-electric, two shafts, 1,600hp
Speed	9.6 knots (17.8 km/h; 11.0 mph)
Complement	19 civilian mariners, 5 sponsors
Sensors and ; processing systems	both passive and active low frequency sonar arrays

USNS Effective (T-AGOS-21) is a Victorious-class ocean surveillance ship acquired by the U.S. Navy in 1993 and assigned to the Navy's Special Mission Program.

Built in Morgan City, Louisiana

Effective was built by Mc Dermott Shipyards, Morgan City, Louisiana. She was laid down on 15 February 1991 and launched 26 September 1991 and was delivered to the Navy on 27 January 1993 which assigned her to the Military Sealift Command (MSC) Special Missions Program.

Mission

The mission of Effective is to directly support the Navy by using both passive and active low frequency sonar arrays to detect and track undersea threats.