This video shows a projectile fired into a water tank from a Bell helicopter. ProAnalyst tracks the tip and tail of the projectile as it moves through the water. This is an example of a vortex with cavitation in fluid dynamics. As the projectile enters the water at high speed, it spins and creates a void in the fluid that rapidly collapses and produces a shock wave in the liquid. The analysis provides information about the flight dynamics of the projectile and allows us to visualize the flow characteristics of the fluid.