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NavSource Online: Mine Warfare Vessel Photo Archive

Heron (MSC[O] 18)
ex-AMS-18
ex-YMS-369



Call sign:
November - Charlie - Uniform - Xray


Heron served the Navies of the United States and Japan.

YMS-1 Class Auxiliary Motor Minesweeper:

  • Laid down 13 January 1943 by the Wheeler Shipbuilding Corp., Whitestone, Long Island, NY
  • Launched 24 July 1943
  • Completed and commissioned USS YMS-369, 9 October 1943
  • Decommissioned 2 March 1946 at San Diego, CA
    Naval Vessel Register of 1 January 1949 lists plan for decommissioning and placing in reserve as February 1947
  • Reclassified as a Motor Minesweeper, AMS-18 and named Heron, 17 February 1947
  • Recommissioned 15 July 1949
  • Reclassified as a Coastal Minesweeper, (Old), MSC(O)-18, 7 February 1955
  • Decommissioned 21 March 1955, turned over to the Japanese Maritime Self Defense Force and renamed Nuwajima (MCS 657)
  • Returned to U.S. Navy custody 31 March 1967 and struck from the Naval Register
  • Sunk as a target 1 August 1969 by the Japanese Maritime Staff Office.

    Specifications:

  • Displacement 207 t.
  • Length 136'
  • Beam 24' 6"
  • Draft 6'
  • Speed 13 kts.
  • Complement 50
  • Armament: One 3"/50 dual purpose gun mount, two 20mm mounts and two depth charge projectors
  • 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
    Heron 93k c. 1952
    Off Yang-do Islands, Korea.
    Wayne Schafer
    Heron 41k c. November 1952
    In dry dock, Sasebo, Japan.
    Heron 19k c. November 1952
    In dry dock with APL-30, Sasebo, Japan.
    Officers 83k c. December 1952
    Officers of the Heron, (left to right) LTJG George Thompson, Executive/Operations Officer, later CO (It pays to wear a white hat); LT Jack Ross, Commanding; LTJG Wayne Schafer, Engineering Officer; and LTJG Steve Watson,
    Minesweeping Officer.
    LTJG 62k c. January 1953
    LTJG Schafer standing OOD during sweep operations. Songjin area.
    AMS-8 75k c. 1953
    Curlew (AMS 8), Mockingbird (AMS 27), Heron (AMS 18), and Gull (AMS 16) nested at Sasebo, Japan.
    Heron 18k c. 1953
    Mine exploding that had fouled in sweep gear off Hungnam, Korea.
    Heron 117k c. 1953
    Sweep operations, Korea.
    Heron 27k c. 1953
    Relaxed sweep operations, Korea.
    Heron 41k c. 1953
    Yokosuka, Japan
    Quarterdeck on Heron.
    Heron 47k c. 1953
    At Yokosuka, Japan.
    Heron 75k c. March 1953
    At Yokosuka, Japan for overhaul.
    Heron 72k
    Heron 78k
    Heron 62k
    Heron 48k c. March 1953
    Heron and Firecrest (AMS 10) in dry dock at Yokosuka, Japan.
    Heron 23k c. 1953
    Mine detonated by small arms fire off Wonson, Korea.
    Heron 134k Officers of the Heron and Curlew at the South Korean Naval Base at Chinhae, 27 July 1953. The occasion was a courtesy visit by the Heron and the Curlew. The date was significant because it was the date of the signing of the armistice agreement at Panmunjom ending the Korean War. The South Koreans present were not pleased that the conflict was ending without a definitive result.
    Heron 129k Chinhae, 27 July 1953
    Heron 128k

    Commanding Officers
    01LT Harry A. Wilson, Jr., USN9 October 1943
    02LT Dixon Lademan, USNApril 1950 - August 1951
    03LT Jack Ross, USNOctober 1952
    04LT George Ira Thompson, USN1953
    Courtesy Wolfgang Hechler and Ron Reeves

    View the Heron (MSC[O] 18)
    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 and maintained by Joseph M. Radigan
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