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NavSource Online: Mine Warfare Vessel Photo Archive

AM / MSO-455 Implicit


Implicit served the Navies of the United States and the Republic of China.

Aggressive Class Minesweeper: Laid down, 29 October 1952 at Wilmington Boat Works, Wilmington, CA; Launched, 1 August 1953; Commissioned USS Implicit (AM-455), 10 March 1954; Redesignated (MSO-455), 7 February 1955; Decommissioned, 30 September 1994; and sold to Taiwan the same day under the Security Assistance Program; Renamed Yung Yang (M 1306); Struck from the Naval Register, 20 November 1994. Fate unknown.

Specifications: Displacement 775 t; Length 172'; Beam 35'; Draft 12'; Speed 14 kts; Complement 8 Officers, 70 Enlisted; Armament, as built, one single 40mm gun mount, two .50 cal machine guns, final configuration, bow gun replaced by one twin 20mm gun mount, two .50 cal. machine guns remain; Propulsion, four Packard ID1700 diesel engines, replaced by four Waukasha Motors Co. diesels, two shafts, two controllable pitch propellers.
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Size Image Description Source
Implicit 40k - USS Implicit
Web Site
Rick Szpyrka
Implicit 72k - USS Implicit
Web Site
Rick Szpyrka
M-1306 55k Seen as Yung Yang (M 1306) Chinese Navy

View the Implicit (AM/MSO-455)
DANFS History entry located on the Haze Gray & Underway Web Site. The main archive for the DANFS Online Project.

Crew Contact And Reunion Information
U.S.Navy Memorial Foundation
Fleet Reserve Association

Additional Resources and Web Sites of Interest
USS Implicit (MSO-455)
102 Minesweepers (MSO) Oceangoing Minesweepers
Naval Minewarfare Association
Association of Minemen
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