Please report any broken links or trouble you might come across to the Webmaster. Please take a moment to let us know so that we can correct any problems and make your visit as enjoyable and as informative as possible.

NavSource Online: Mine Warfare Vessel Photo Archive


Call sign:
Nan - Peter - Jig - Nan

Sunk 30 July 1944

YMS-1 Class Auxiliary Motor Minesweeper:

  • Laid down 15 June 1942 by Rice Brothers Corp., East Boothbay, ME
  • Launched, 10 August 1943
  • Completed and commissioned 1 October 1943
  • Sunk by a mine 30 July 1944 off the coast of Normandy at Saint-Vaast-la-Hougue, France. She sank in 63 seconds with a loss of eight dead and 30 injured
  • Struck from the Navy list 22 August 1944.


  • 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 1,000bhp 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
    D-Day Map 508k Location of sinking, 30 July 1944. (4933'N., 0114'W.)
    Illustration from the June 2002 edition of National Geographic
    Joe Radigan

    There is no DANFS history available for YMS-304
    Additional Resources and Web Sites of Interest
    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

    Comments, Suggestions, E-mail Webmaster

    This page created and maintained by Joseph M. Radigan & Michael Mohl
    1996 - 2022 NavSource Naval History. All Rights Reserved.