USNS Invincible (T-AGM-24)

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USNS Invincible
USNS Invincible (T-AGM-24)
United States
Ordered: January 20, 1982
Builder: Tacoma Boatbuilding Company, Tacoma, Washington
Laid down: May 2, 1986
Launched: November 8, 1986
In service: January 30, 1987
Homeport: No homeport assigned
Fate: In service with the Military Sealift Command
General characteristics
Type: Tracking ship
Displacement: 2,285 tons full load
Length: 224 ft (68 m)
Beam: 43 ft (13 m)
Draught: 16 ft (4.9 m)
Propulsion: four diesel generators, two shafts, 3,200 brake hp
Speed: 11 knots (20 km/h; 13 mph)
  • Officers: 7
  • Enlisted: 13
  • 18 civilians
  • 18 military/sponsor personnel
Sensors and
processing systems:
Cobra Gemini

USNS Invincible (T-AGM-24), also known as ex-AGOS 10, is one of two Tracking ships operated by the Military Sealift Command. One of the radars it carries is the Cobra Gemini dual band, X band and S band, radar.[1]

SURTASS gear on Invincible in 1987, soon after christening.

Like other members of the Stalwart class of ocean surveillance ships, the original mission of the Invincible was to patrol the oceans looking for submarines with her Surveillance Towed Array Sensor System (SURTASS), a large passive sonar array. The ship was reclassified from AGOS-10 to AGM-24 on April 4, 2000 after she was refitted as a missile range instrumentation ship. Invincible provides a platform for the Cobra Gemini dual-band radar developed by the United States Air Force to support data collection requirements on theater ballistic missiles.[2] The Military Sealift Command retains custody for United States Air Force use for deploying a mobile surveillance and tracking radar system.[2]


Invincible deployed to the Persian Gulf in 2012, passing through the Strait of Hormuz on 19 May 2012 in convoy with British minesweepers.[3] In March 2017, Invincible visited the Persian Gulf under Royal Navy escort, and was greeted by numerous IRGC fastboats which provocatively approached within 600 meters of Invincible in the Gulf of Oman.[4]


  1. ^ "Cobra Gemini". Federation of American Scientists. Retrieved 10 May 2015.
  2. ^ a b "Military Sealift Command--Fact Sheet". U.S Navy Military Sealift Command. Retrieved 2008-08-17.
  3. ^ "US Navy photo 120519-N-AP176-039". US Navy. 19 May 2012.
  4. ^ "US Navy Spy Ship Forced to Change Course After Iranian Attack Vessels Approach". Retrieved 2017-03-07.

External links[edit]

Media related to USNS Invincible (T-AGM-24) at Wikimedia Commons