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Section Patrol Craft Photo Archive

ex-Helori (SP 181)

Call sign:
Nan - Easy - Fox - Sail


  • Built in 1911 by Johnson Brothers and Blanchard, Seattle, WA
  • Acquired by the Navy 23 April 1917
  • Commissioned USS Helori (SP 181), 21 June 1917 at Puget Sound Navy Yard, WA
  • Reclassified as a District Patrol Craft, YP-181 in 1920
  • Decommissioned in March 1922 at Puget Sound Navy Yard
  • Sold 17 September 1925 to the Crowley Launch and Tugboat Company of San Francisco, CA
  • Fate unknown.


  • Displacement 90 t.
  • Length 98'
  • Beam 15' 8"
  • Draft 5' 6"
  • Speed 11.5 kts.
  • Complement 17
  • Armament: Two 3-pounders
  • Propulsion: Two 125hp 6-cylinder Eastern Standard gasoline engines, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    Motorboat Helori
    Helori 88k Photographed in a Pacific Northwest harbor, prior to World War I
    U.S. Navy photo NH 99999
    Naval Historical Center
    USS Helori (SP 181)
    Helori 82k At the Puget Sound Navy Yard, Bremerton, Washington, 17 March 1921. Helori was the only Section Patrol boat on the Pacific Coast fitted with the 220 horsepower Standard gasoline engine adopted for use in World War I submarine chasers (SC). She was used by the 13th Naval District for training subchaser engine room forces
    Collection of Rear Admiral Ammen Farenholt, USN (Medical Corps)
    U.S. Navy photo NH 635
    Naval Historical Center

    View the Helori (SP 181)
    DANFS History entry located on the Naval History and Heritage Command website
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