Originally Posted by
UltraFan
You have never seen a steam turbine blade after it was hit by a single droplet of water. Nor have you seen waterjet cutters.
Yes, I have seen both on my University course. The destruction of a generating turbine by wet steam was particularly impressive, but not particularly relevant to this discussion. The water cutter relies on pressure more than speed. I have seen photographs of a finger cut through by hydraulic fluid from a weeping leak.
I have flown through both rain and hail and seen the damage from each, I have also had ricochet damage from both mud and spent rounds. The hard things do a lot more damage.