Are they drone evading though? Because if not, then this is a waste of time and taxpayer money. Literally any idiot can 3D print a drone capable of defeating tens of millions of dollars in military hardware from 15-20 miles away. We're not in Kansas anymore.
3D print a drone that will intercept a 180mph vessel from 20 miles away? You should consider putting together a prototype, I can only imagine you'd receive funding.