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Show Big Gnn Tested. The new 18-inch Gathmana torpedo gun, the largest ever built in this country, coun-try, has heen tested at the Bethlehem steel works to determine the velocity . and strength of the gun, and proved successful. Solid shots weighing a ton were fired. After two preliminary shots, the third was fired with a charge of 300 pounds of powder, and showed a pressure pres-sure of 19,045 pounds and 1,896 feet velocity, while the fourth shot with the same charge recorded a pressure of 19,350 pounds and a velocitv of 1,901 feet. The gun is intended for coast defense. de-fense. The inventor claims that it will throw a shell fifteen miles. Guncotton is used in the charges. The gun is forty-four feet long and weighs fifty-nine tons. |