USS Skylark (ASR-20)

History
United States
Name	USS Skylark
Namesake	Skylark
Builder	Charleston Shipbuilding & Drydock Company, Charleston, South Carolina
Laid down	July 1945
Launched	19 March 1946
Sponsored by	Mrs. H. C. Weatherly
Commissioned	1 March 1951
Decommissioned	30 June 1973
Renamed	Skylark, 5 December 1945
Reclassified	Submarine rescue ship, 11 October 1945 ASR-20, 13 November 1945
Stricken	30 June 1973
Fate	Sold to Brazil, 30 June 1973
History
Brazil
Name	Gastão Moutinho (K10)
Acquired	30 June 1973
Reclassified	U20 (auxiliary ship), 1989
Decommissioned	18 September 1996
Fate	Unknown
General characteristics
Class and type	Penguin-class submarine rescue ship
Displacement	1,735 long tons (1,763 t) full
Length	205 ft (62 m)
Beam	39 ft 3 in (11.96 m)
Draft	15 ft 6 in (4.72 m)
Propulsion	4 × General Motors 12-278A diesel engines driving four General Electric generators 3 × General Motors 3-268A auxiliary service engines Single screw 3,600 shp (2,685 kW)
Speed	16 knots (30 km/h; 18 mph)
Complement	106 officers and enlisted
Armament	1 × 3"/50 caliber gun 4 × 20 mm guns 2 × Depth charge tracks

USS Skylark (ASR-20) was a Penguin-class submarine rescue ship of the United States Navy.

The ship was laid down in July 1945 as the Navajo-class fleet tug Yustaga (ATF-165) by the Charleston Shipbuilding & Drydock Co. of Charleston, South Carolina. While under construction Yustaga was redesignated a submarine rescue ship on 11 October 1945, assigned the hull designation ASR-20 on 13 November 1945, and renamed Skylark on 5 December 1945. She was launched on 19 March 1946, sponsored by Mrs. H. C. Weatherly, and was placed in the Atlantic Reserve Fleet, berthed first at Charleston and later at New London, Connecticut, until 1 March 1951, when she was finally commissioned.