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NavSource Online:
Submarine Chaser Photo Archive


PC-604 served the Navies of the United States and Brazil.

PC-461 Class Submarine Chaser:

  • Laid down 16 February 1942 by the Luders Marine Construction Co., Stamford, CT
  • Launched 24 October 1942
  • Commissioned USS PC-604, 9 March 1943
  • Decommissioned 11 June 1943, transferred to Brazil and named Guaiba (G 3)
  • Scrapped in 1952.


  • Displacement 295 t.(lt), 450 t.(fl)
  • Length 173' 8"
  • Beam 23'
  • Draft 10' 10"
  • Speed 20.2 kts.
  • Complement 65
  • Armament: One 3"/50 dual purpose gun mount, one 40mm gun mount;, three 20mm guns, two rocket launchers, four depth charge projectors, and two depth charge tracks
  • Propulsion: Two 1,440bhp General Motors 16-258S diesel engines, Farrel-Birmingham single reduction gear, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    Guaiba 31k Guaiba (G 3) Bob Daly/PC-1181

    There is no DANFS history available for PC-604
    Additional Resources and Web Sites of Interest
    Patrol Craft Sailors Association

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    This page created and maintained by Joseph M. Radigan
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