USS Tanguingui (SP-126)

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Name: USS Tanguingui
Namesake: Previous name retained
Builder: New York Yacht Launch and Engine Company, Morris Heights, New York
Completed: 1915
Acquired: 28 June 1917
Commissioned: 31 October 1917
Out of service: 6 February 1919
Struck: 7 April 1919
Fate: Returned to owner 21 April 1919
Notes: Operated as private yacht Tanguingui 1915-1917 and from 1919
General characteristics
Type: Patrol vessel
Tonnage: 51 tons
Length: 63 ft 6 in (19.35 m)
Beam: 15 ft 10 in (4.83 m)
Draft: 3 ft 8 in (1.12 m) (aft)
Speed: 12 miles per hour[1]
Complement: 8
Armament: 1 x 1-pounder gun (removed 6 February 1919)

USS Tanguingui (SP-126) was an armed motor yacht that served in the United States Navy as a patrol vessel from 1917 to 1919.

Tanguingui was built as a civilian yacht in 1915 by the New York Yacht Launch and Engine Company at Morris Heights, New York. The U.S. Navy acquired Tanguingui under a free lease from her owner, Mr. J. C. McCoy of New York City, on 28 June 1917 for use as a patrol boat during World War I. She was commissioned on 31 October 1917 as USS Tanguingui (SP-126).

Assigned to the 7th Naval District, Tanguingui operated out of Key West, Florida, patrolling along the extreme southern coast of Florida to prevent incursions by German submarines. Following the Armistice with Germany that ended the war on 11 November 1918, she continued to serve the Navy until her main battery, small arms, and ammunition were removed on 6 February 1919.

Tanguingui's name was stricken from the Navy List on 7 April 1919, and she was returned to her owner on 21 April 1919.


  1. Both the Dictionary of American Naval Fighting Ships (at and NavSource Online (at give the boat's speed in "miles per hour", implying statute miles per hour. This is unusual for a boat or ship, and may be a mistaken reference to 12 knots. However, if the boat's speed really is given correctly in statute miles per hour, the equivalent in knots would be 10.4