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USNS Howard O. Lorenzen (T-AGM-25)

USNS Howard O. Lorenzen (T-AGM-25) is a Missile Range Instrumentation Ship built for the U.S. Navy by VT Halter Marine of Pascagoula, Mississippi.[5] The keel was laid during a ceremony on August 13, 2008,[6] and the vessel became operational in 2014. This ship carries a next-generation active electronically scanned array radar system named Cobra King.

USNS Howard O. Lorenzen (T-AGM-25)
Howard O. Lorenzen on the Columbia River (140516-Z-PL933-055).jpg
United States
Namesake: Howard O. Lorenzen[1]
Awarded: 26 September 2006[2]
Laid down: 13 August 2008[2]
Sponsored by: Susan Lorenzen Black[1]
Christened: 26 June 2010[1]
Launched: 30 June 2010[2]
Acquired: 10 January 2012[2]
Status: Operational
Badge: USNS Howard O Lorenzen coat of arms.png
General characteristics
Length: 534 ft (163 m)[2]
Beam: 89 ft (27 m)[2]
Draft: 21 ft (6.4 m)[2]
Propulsion: 20 kn (37 km/h; 23 mph)[3]
Complement: 88[4]



Lorenzen at Port Canaveral

USNS Howard O. Lorenzen is 12,642 long tons (12,845 t),[2] 534 feet (163 m) in length, and has a beam of 89 feet (27 m). Manned by a combined crew of 88 sailors and civilian mariners, the ship will host embarked military and civilian technicians from other U.S. government agencies. It will be operated by the Military Sealift Command and conduct missions sponsored by the U.S. Air Force.[4]


The ship is named for the late Naval Research Laboratory (NRL) electrical engineer who was instrumental in the creation of the electronic intelligence capabilities of the United States.[4] It was due to be delivered in 2010.[6]

In May 2011 it was announced that the ship had failed its Board of Inspection and Survey (INSURV) inspection and was being sent back for repairs before the Navy would accept the ship. The ship was judged inadequate in the electrical, damage control and aviation inspections and also had problems with her anchor, steering and the temperature in her thrust bearings.[7]

The U.S. Navy accepted delivery of Howard O. Lorenzen on 10 January 2012.[8] Final contract trials were completed on 5 December 2013, with transfer of some responsibilities for the ship to the US Air Force expected to occur in 2014.[9] On 31 March 2014, the Cobra Judy Replacement (Cobra King) program reached initial operational capability (IOC). According to the Naval Sea Systems Command (NAVSEA), the U.S. Air Force also assumed operational and sustainment responsibilities[clarification needed] for the ship.[10]

The Howard O. Lorenzen and her Cobra King radar system were declared operational in August 2014. It replaced the USNS Observation Island (T-AGM-23), which was inactivated for dismantlement earlier in the year.[11][12]

See alsoEdit


  1. ^ a b c "Navy To Christen USNS Howard O. Lorenzen" (Press release). U.S. Department of Defense. 24 June 2010. No. 531-10. Retrieved 24 June 2010.
  2. ^ a b c d e f g h i j k "USNS Howard O Lorenzen (T-AGM 25)". Naval Vessel Register. Retrieved 24 June 2010.
  3. ^ "Ship Inventory: Missile Range Instrumentation Ships". U.S. Military Sealift Command. Retrieved 31 December 2013.
  4. ^ a b c "Navy Names Ship After Howard O. Lorenzen 'Father Of Electronic Warfare'" (Press release). U.S. Department of Defense. 10 October 2008. No. 863-08. Retrieved 2 February 2012.
  5. ^ "USNS Howard O. Lorenzen (T-AGM-25)". Retrieved 4 April 2009.
  6. ^ a b "Keel Laid for New Missile Range Instrumentation Ship" (PDF) (Press release). Naval Sea Systems Command. 13 August 2008. No. 08-02. Retrieved 2 February 2012.
  7. ^ Cavas, Christopher P (26 May 2011). "U.S. Navy Rejects New Radar Ship". Defense News. Retrieved 2 February 2012.
  8. ^ "Navy Accepts Delivery of USNS Howard O. Lorenzen". 12 January 2012. No. NNS120112-16. Retrieved 2 February 2012.
  9. ^ "Howard O. Lorenzen completes Final Contract Trials". 5 December 2013. No. NNS131205-03. Retrieved 8 December 2013.
  10. ^ "Cobra Judy Replacement Achieves Initial Operational Capability". 1 May 2014. No. NNS140501-26. Retrieved 8 May 2014.
  11. ^ Fein, Geoff (12 August 2014). "Cobra King begins at-sea ballistic missile launch-detection mission". Jane's Information Group. Retrieved 19 August 2014.
  12. ^ Romano, Susan A. (7 August 2014). "AFTAC's maritime radar becomes operational". U.S. Air Force. Retrieved 19 August 2014.