(IX-51: dp. 100; l. 80'; b. 12'8"; dr. 6'8")
Sea Otter I was built by Jacobson's Shipyard, Oyster Bay, Long Island, N.Y.; launched on 24 May 1941; acquired by the Navy on 29 May 1941; and placed in service on 9 July 1941.
Prior to her completion, Sea Otter I had been offered to the Navy for use as a district craft for experimental purposes by her owner, Mr. Roland L. Redmond, of New York City.
Sea Otter I operated in waters of the 3d Naval District prior to World War II. She was placed out of service on 6 November 1941 and struck from the Navy list on 24 June 1942. Sea Otter's provision unit was shipped to the Naval Engineering Experimental Station, Annapolis, Md., and her hull was scrapped.