USS Sunbeam III (SP-251)
 USS Sunbeam III (SP-251) was a United States Navy patrol vessel in commission from 1917 to 1919. The prefix designator means Section Patrol Craft.[1]Sunbeam III was built as a civilian motorboat of the same name in 1917 by the Charles L. Seabury Company and the Gas Engine and Power Company at Morris Heights in the Bronx New York. Her owner Mr. R. B. Roosevelt of New York City loaned her to the U.S. Navy under a free lease agreement for World War I service as a patrol vessel.