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NavSource Online:
Section Patrol Craft Photo Archive

YP-181
ex-Helori (SP 181)

Motorboat: Built in 1911 by Johnson Brothers & Blanchard, Seattle, WA; Acquired by the Navy +23 April 1917; Commissioned USS Helori (SP 181), 21 May 1917 at Puget Sound Navy Yard, WA; Reclassified 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.

Specifications: Displacement 90 t.; Length 92' 4"; Beam 15' 8"; Draft 5' 6"; Speed 12 kts.; Complement 17; Armament two 6-pounders; Propulsion one 220 hp Standard gasoline engine, one shaft

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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
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