Naval History and Heritage Command

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Sioux IV (T-ATF-172)


The Sioux are a confederacy of nomadic tribes that inhabited the plains and prairies from the Great Lakes to the Rocky Mountains and that speak three different dialects, the Lakota, Dakota, and Nakota. This is the fourth ship to bear the name. The first (YT-19) was a tug that served from 1898 until sold in 1921; re-named Nyack in 1918. The second (ID-1766) was a cargo ship that served from 1917-1919. The third (AT-75) Sioux (ATF-75) was a tug that served from 1942 through 1972 and earned four battle stars for World War II service and eight battle stars for service in the Vietnam War.  


(T-ATF-172; displacement 1,387 (light) 2,000 (full); 1ength 226'; beam 42'; draft 15'; speed 15 knots; complement 21; class Powhatan)

The fourth Sioux (ATF-172) was laid down on 22 March 1979 at Marinette, Wis., by the Marinette Marine Corporation; launched on 15 November1980; the sponsor is unknown; and delivered to the Military Sealift Command (MSC) on 1 May 1981.

On 4 October 1991 Arkansas (CGN-41), Sioux, Aubrey Fitch (FFG-34), and Helicopter Antisubmarine Squadron 6 rescued personnel on merchant ships in three different rescue operations in the Arabian Sea.

Sioux- divers during RIMPAC-16Jul2004-040716-N-6811L-209
Navy Diver, Hull Maintenance Technician 1st Class Rick Pelton, signals the winch operator aboard Sioux to raise the stage preparing to put two divers in the water during diving salvage operations off the coast of Oahu, Hawaii in support of Exercise Rim of the Pacific 2004, 16 July 2004. (Photographer's Mate 1st Class David A. Levy, U.S. Navy Photograph 040716-N-6811L-209, Photos).

On 26 January 2007 there was a fatal crash of a MH-60S Knighthawk. Navy salvage teams, including Sioux and the Remotely Operated Vehicle Deep Drone 8000 recovered the remains of the helicopter’s crew and remained on station to recover the helicopter's wreckage in order to assist in the investigation of the crash on 16 February.

From 25 April through 30 May 2008 Sioux towed the decommissioned nuclear submarine Hyman G. Rickover (SSN-709) from the Panama Canal to Bremerton, Washington. Sioux and Rickover did stop in San Diego from 13-23 May.

On 12 November 2009 people from Explosive Ordnance Disposal Group 1, Mobile Diving and Salvage Unit 1, and Naval Sea Systems Command embarked on Sioux conduct deep salvage removal operations utilizing the Deep Drone remotely operated vehicle to recover flight data recorders and document the crash site of a U.S. Coast Guard C-130 Hercules and a U.S. Marine Corps AH-1 Super Cobra collision.

Sioux- Indian diver during SALVEX-13Feb2012-120213-N-WX059-110
Indian Navy Leading Seaman Clearance Diver 2nd Class Y.K. Sharma jumps from Sioux during Salvage Exercise 2012, 13 February 2012. (Mass Communication Specialist 3rd Class Sean Furey, U.S. Navy Photograph 120213-N-WX059-110, Photos).

On 27 February 2014, Canadian auxiliary oil replenishment ship Protecteur (AOR-509) experienced a major engine room fire at sea while returning to its home port of Esquimalt, British Columbia, after a two-month deployment in the middle of the Pacific Ocean. Sioux rendered assistance by successfully taking Protecteur under tow back to Joint Base Pearl Harbor-Hickam. The ships arrived on 6 March. For this action Sioux was awarded the Canadian Forces Unit Commendation on 16 June 2015.

Sioux- towing Protecteur to Pearl-Hickam-6Mar2014-140306-N-RI884-071
Sioux tows Canadian auxiliary oil replenishment ship Protecteur (AOR- 509) to Joint Base Pearl Harbor-Hickam, 6 March 2014. (Mass Communication Specialist 1st Class Daniel Barker, U.S. Navy Photograph 140306-N-RI884-071, Photos).

Detailed history pending.

Christopher B. Havern Sr.

25 November 2015

Published: Thu Feb 25 10:37:23 EST 2016