Navy Tests 'Game-Changing' Superweapon
capable of hurling 40-pound projectiles at speeds of 4,500 mph to 5,600 mph over 100 miles, that is about 7 times the speed of sound
capable of hurling 40-pound projectiles at speeds of 4,500 mph to 5,600 mph over 100 miles, that is about 7 times the speed of sound
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