USS Helori
Introduction '''USS ''Helori'' (SP-181)''', later '''YP-181''', was an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1922. ''Helori'' as a private motorboat in a Pacific Northwest harbor sometime between 1911 and 1917. ''Helori'' was built as a civilian motorboat of the same name in 1911 by Johnson Brothers and Blanchard at Seattle, Washington, for use as a pleasure craft. The U.S. Navy purchased her from her owner, either Omar J. Humphrey  or H. G. Kenney of Seattle, on 23 April 1917 for World War I service as a patrol vessel. She was commissioned as USS ''Helori'' (SP-181) on 21 May 1917 at Puget Sound Navy Yard, Bremerton, Washington.Assigned to the 13th Naval District, ''Helori'' was the only section patrol boat on the United States West Coast fitted with the 220-horsepower (0.3-megawatt) standard gasoline engine adopted for use in World War I submarine chasers, and she operated out of Puget Sound Navy Yard training engine room crews for submarine chasers and performing guardship duty. She made frequent trips to and from Bremerton and Seattle.In 1920, ''Helori'' was reclassified from section patrol craft to district patrol craft and was redesignated YP-181''Helori'' was decommissioned in March 1922 and sold to the Crowley Launch and Tugboat Company of San Francisco, California, on 17 September 1925.
Notes
References ** Department of the Navy: Naval Historical Center: Online Library of Selected Images: U.S. Navy Ships: USS ''Helori'' (SP-181, later YP-181), 1917-1925.Previously the civilian motor boat ''Helori'' (1911)* NavSource Online: Section Patrol Craft Photo Archive YP-181 ex-Helori (SP 181)