The U.S. Navy, without fanfare or notice, tested a new weapon last summer that could revolutionize surface warfare. The hyper velocity projectile (HVP) is a Mach 3 shell fired from existing guns on ...
Summary and Key Points: During the Korean War, the U.S. Navy outfitted Iowa-class battleships with nuclear capabilities through Operation Katie, enabling them to fire Mark 23 “Katie” nuclear shells.
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