"1991-12-12Z"^^ . "1953-09-22Z"^^ . "10.9728"^^ . . . . . "52.4256"^^ . "3.048"^^ . . "1955-11-16Z"^^ . "USS Leader (AM-490/MSO-490) was an Aggressive-class minesweeper acquired by the U.S. Navy for the task of removing mines that had been placed in the water to prevent the safe passage of ships.Leader (AM-490) was laid down by J. M. Martinac Shipbuilding Corp., Tacoma, Washington, 22 September 1953; launched 15 September 1954; sponsored by Mrs. Norman Wordlund; reclassified MSO-490 7 February 1955, and commissioned 16 November 1955, Lt. Comdr. Harvey E. Toponce in command."@en . "scrapped, 1994" . "1954-09-15Z"^^ .