The USS Orca (SP-726) was a steam yacht originally named Monaloa, constructed by George Lawley & Son in Neponset, Massachusetts. As a yacht, she was later renamed Orca before her acquisition by the United States Navy. She was formally purchased from S. W. Colten of Bryn Mawr, Pennsylvania, on 17 May 1917, and was commissioned into naval service shortly thereafter, on 8 May 1917, under the command of Boatswain F. D. Grassie. Designed and built as a private steam yacht, Orca was repurposed for military use during World War I, serving as a patrol vessel. Her primary area of operation was within the 1st Naval District, headquartered in Boston, Massachusetts. Her duties involved patrolling the waters around Boston, contributing to the maritime security efforts during the war. Throughout her service, she operated mainly in and around Boston Harbor, ensuring the safety of naval and commercial maritime traffic in the region. In the latter part of her naval career, Orca was moored at Fishe Wharf in Boston from October to December 1918. She was decommissioned on 30 December 1918 at Quincy, Massachusetts, shortly after the end of World War I. Following her decommissioning, she was struck from the Naval Register on 18 August 1919 and was subsequently sold to Frazer Brace and Company of New York City on 2 February 1920. In summary, USS Orca (SP-726) was a private yacht converted for wartime patrol duties, serving for a brief period during World War I in the Boston area. Her service exemplifies the common practice of the era, where private vessels were adapted for military use to meet wartime demands, and she played a role in the coastal defense operations of the United States during the conflict.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.