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NavSource Online: Mine Warfare Vessel Photo Archive

Mockingbird (MSC[O] 27)
ex-AMS-27
ex-YMS-419



Call sign:
November - Quebec - Alpha - Oscar


Mockingbird served the Navies of the United States and the Republic of Korea.

YMS-1 Class Auxiliary Motor Minesweeper:

  • Laid down 17 September 1943 by Henry C. Grebe and Co., Chicago, Illinois
  • Launched 23 March 1944
  • Completed 28 October 1944
  • Commissioned USS YMS-419, 18 November 1944
  • Reclassified as a Motor Minesweeper, AMS-27 and named Mockingbird 17 February 1947
  • Reclassified as a Coastal Minesweeper (Old), MSC(O)-27, 7 February 1955
  • Decommissioned, 6 January 1956 and transferred to South Korea as Ko Chang (MSC[O]-521)
  • Sold to South Korea 1 November 1974
  • Struck from the Navy Register 15 November 1974
  • Fate unknown.

    Specifications:

  • Displacement 270 t.
  • Length 136'
  • Beam 24' 6"
  • Draft 8'
  • Speed 15 kts.
  • Complement 32
  • Armament: One 3"/50 dual purpose gun mount, two 20mm mounts and two depth charge projectiles
  • Propulsion: Two 880bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    USS YMS-419
    Mockingbird 117k c. 1944/1945
    U.S. Navy photo NH 96909
    Naval Historical Center
    Mockingbird 243 Original photo: c. 1945
    Courtesy of Donald M. McPherson, 1974
    U.S. Navy photo NH 79733

    Replacement photo: Courtesy of Jim Milloholland
    Original photo: Naval Historical Center
    Replacement photo: Alan Cole
    USS Mockingbird (AMS 27)
    Mockingbird 47k U.S. Navy photo NH 96909 Naval History and Heritage Command
    Mockingbird 121 Mockingbird deploys an acoustic hammer box during sweep operations off Wonsan, Korea, in October 1950. The original photo is dated 23 October 1950.
    National Archives photo 80-G-422164
    Naval Historical Center
    Mockingbird 101k Deploying a float from a U.S. Navy minesweeper (AMS), off Wonsan, North Korea. Original photo is dated 14 November 1950. This ship is probably USS
    Mockingbird (AMS-27).
    National Archives photo from the Naval History and Heritage Command 80-G-42597
    Russ Padden
    Mockingbird 91k Sailors put a float over the side of U.S. Navy minesweeper (AMS) during mine clearance operations off Wonsan, North Korea. Original photo is dated 14 November 1950. This ship is probably USS Mockingbird (AMS-27).
    National Archives photo from the Naval History and Heritage Command 80-G-42598
    Mockingbird 84k Streaming a float from U.S. Navy minesweeper (AMS) during mine clearance operations off Wonsan, North Korea. Original photo is dated 14 November 1950. This ship is probably USS Mockingbird (AMS-27).
    National Archives photo from the Naval History and Heritage Command 80-G-42599
    Mockingbird 74k Crewman operating a winch aboard USS Mockingbird (AMS-27), during mine clearing operations off Wonsan, North Korea. The ship's name is on a lifering mounted on the bulwark in the lower right. Original photo is dated 14 November 1950.
    National Archives photo 80-G-426009
    Robert Hurst
    Mockingbird 64k Crewman attaches a cable cutter to the sweep wire of a U.S. Navy minesweeper (AMS) during mine clearance operations off Wonsan, North Korea. Original photo is dated 14 November 1950. This ship is probably USS Mockingbird (AMS-27).
    National Archives photo from the Naval History and Heritage Command 80-G-426011
    Russ Padden
    Mockingbird 68k Mockingbird explodes an enemy mine in the Chinnampo area, off North Korea's Yellow Sea coast. Original photo is dated, 3 March 1953.
    U.S. Navy Photo 478497
    Naval Historical Center
    Mockingbird 130k Mockingbird cleans water off Chinnampo, Korea inshore of Comstock (LSD 19), shortly before a raid by marine units.
    U.S. Navy photo from the August 1953 issue of All Hands magazine
    Joe Radigan
    AMS-8 75k c. 1953
    Sasebo, Japan
    Curlew (AMS 8), Mockingbird, Heron (AMS 18), and Gull (AMS 16)
    Wayne Schafer
    Mockingbird 58k c. 1953
    Sasebo, Japan.
    Curlew 115k c. December 1955
    Sasebo, Japan
    Kite (MSC(O) 22), Curlew (MSC(O) 8) and Mockingbird, just before departing for Korea and handover to the ROKN.
    Stan Cochran, LTJG, Engineer Officer USS Kite (1955-1956)
    Ko Chang (MSC[O] 521)
    Mockingbird 49k c. 1967 -
    Mockingbird 75k c. 1959
    South Korean Navy photo from the 1959/1960 edition of Jane's Fighting Ships
    Robert Hurst

    Commanding Officers
    01LTJG Francis Everett Pearson, III, USNAugust 1946 - January 1947
    02LTJG Stanley P. Gary, USN1950 - May 1951
    03LTJG S. S. Smith, USNMay 1951 - June 1952
    04LT Richard Louis Rodier, USNJune 1952 - 1953
    05LT Rex Edmond Maire, USN - USNA Class of 19501953 - 1954
    06LT Frank Charles Kretchman, USN1954 - 6 January 1956
    Courtesy Wolfgang Hechler and Ron Reeves

    View the Mockingbird (MSC[O] 27)
    DANFS History entry located on the Haze Gray & Underway Website
    Additional Resources and Web Sites of Interest
    Naval Minewarfare Association
    Association of Minemen

    Back To The Main Photo Index Back To the Mine Warfare Ship Photo Index Back to the Auxiliary Motor Minesweeper (YMS) Photo Index Back To The Motor Minesweeper (AMS) Photo Index Back to the Coastal Minesweeper (MSC) Photo Index

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    This page created by Gary P. Priolo and maintained by Joe Radigan
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