Minnetonka. Original Name: Minnetonka. Owner: Union Oil Co., 1906 Builder: American Ship Building Co., 1902, United States, Ohio, Cleveland Engine Builder: American Ship Building Co., 1902, United States, Ohio, Cleveland Year Built: 1902 Year Engine Built: 1902 Final Disposition: Lost by enemy action, off Loch Swilly, Ireland, February 25, 1918. 55 degrees 14' N; 6 degrees 9' W. Remarks: Converted to Tanker, 1906. Had two stacks. Launched September 14, 1901. Through canals in two parts. Registry Number: US. 93224. Hull Number: 407 Vessel Type: Freighter Length: 430 ft. Width: 43.7 ft. Height: 33 ft. Gross Tonnage: 5270 t. Net Tonnage: 3860 t. Materials: Steel Engine Type: Triple expansion Piston #1: 27 in. Piston #2: 42.5 in. Piston #3: 73 in. Stroke Length: 48 in.