This 57 MM Mark 110 Naval gun is used on the new Freedom Class ships.  These ships can attain speeds of 52 mph and are driven by pumps that can empty an Olympic sized pool in three seconds.

The rate of fire is 220 rounds per minute and the projectiles have fuses with built in radar that can be programmed to detonate by proximity or time/distance. The elecronics sustain 60,000 G's at the moment of firing.  At that G level a baseball has an effective weight of 8.5 tons.

4 minutes

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