One might think that if the ball penetrated and then rotated, trying to pull its fulcrum down, that it might impart a tremendous peak "tension" weight on the helicopter. Might be liable to tear the fork right out out of his nightie
crazy.
A case of dynamite and a couple of lads with a bit of imagination would be far better, or perhaps one could round up a few suicide bombers and convince them of a goodly cause.
or give the local artillery mob a bit of casual cannon fodder, anything.