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NavSource Online:
Motor Torpedo Boat Photo Archive


Call sign:
Nan - William - Able - Fox

PT-504 served the Navies of the United States and the Soviet Union.

80' Elco Motor Torpedo Boat:

  • Laid down 20 August 1943 by the Electric Boat Co., Elco Works, Bayonne, NJ
  • Launched 13 December 1943
  • Completed 11 January 1944 placed in service and assigned to Motor Torpedo Boat Squadron THIRTY FOUR (PTRon 34) under the command of LT Allen H. Harris, USNR
  • PTRon 34 had action in the English Channel area from June 1944 to October 1944, when orders were received to prepare the boats for delivery to the Soviet Union
  • The "Nasty Bastard" was transferred to the Soviet Union 30 December 1944 and reclassified TK-421
  • Fate unknown.


  • Displacement 56 t.
  • Length 80'
  • Beam 20' 8"
  • Draft 5'
  • Speed 41 kts.
  • Complement 17
  • Armament: One 40mm mount, four 21" Torpedoes and two twin .50 cal. machine guns
  • Propulsion: Three 1,500shp Packard W-14 M2500 gasoline engines, three shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    PT-504 81k PT-504 during an inspection by King George VI (second from right in lower photo)
    U.S. Navy photo from "Allied Coastal Forces of World War II: Vol. II" by John Lambert and Al Ross
    Robert Hurst
    PT-504 125k
    PT-504 125k Rescuing surviviors of USS Rich (DE-695), which had been sunk by two German mines off Normandy on 8 June 1944. In the upper left hand background is the British HM ML-116, which is also rescuing
    Rich's survivors.
    Naval History and Heritage Command photo NH 44313
    Robert Hurst

    There is no DANFS history available for PT-504
    Back To The Main Photo Index Back to the Patrol Craft/Gunboat/Submarine Chaser Index Back to the Motor Torpedo Boat (PT) Photo Index

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    This page created and maintained by Joseph M. Radigan
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