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NavSource Online: Mine Warfare Vessel Photo Archive

Implicit (AM 246)

Call sign:
Nan - Fox - Victor - Nan

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

Admirable Class Minesweeper:

  • Laid down 16 March 1943 by the Savannah Machine and Foundry Co., Savannah, GA
  • Launched 6 September 1943
  • Commissioned USS Implicit (AM 246), 20 January 1944
  • Decommissioned 16 November 1946 at Subic Bay, Philippines
  • Transferred to the Republic of China and renamed Yung Chia (MSF 47), 15 June 1948
  • Decommissioned in August 1970 and struck from the Navy list
  • Fate unknown.


  • Displacement 945 t. (fl)
  • Length 184' 6"
  • Beam 33'
  • Draft 9' 9"
  • Speed 14.8 kts.
  • Complement 104
  • Armament: One 3"/50 cal. dual purpose mount, one twin 40mm gun mount, six 20mm gun mounts, one depth charge projector (hedgehogs), four depth charge projectiles (K-guns), and two depth charge tracks
  • Propulsion: Two 1,710shp Cooper Bessemer GSB-8 diesel engines, National Supply Co. single reduction gear, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    Yung Chia 31k Yung Chia (MSF 47)
    Chinese Navy photo
    Chinese Navy

    Commanding Officers
    01LCDR Henry Victor Brown, USNR20 January 1944 - 21 February 1945
    02LT Herschel Louis Wright, USNR21 February 1945 - 3 September 1945
    03LT Robert James Exter, USNR3 September 1945 - 10 December 1945
    04LTJG Richard Peter West, USNR19 March 1946 - 20 August 1946
    05LCDR Charles Donald Griffin, USNR20 August 1946 - 16 November 1946
    Courtesy of Wolfgang Hechler, Ron Reeves and R. A. Moody

    View the Implicit (AM 246)
    DANFS History entry located on the Haze Gray & Underway Web Site.
    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 Minesweeper (AM) Photo Index

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