@kikix12 cross bows use bolts, not arrows, and were specifically designed to penetrate armor... seriously, their penetrative power was like comparing a BB to a full metal jacket -.- While the few knights who were capable of wearing full plate could resist them at a distance of greater than 50m, within 40m a steel headed heavy crossbow would impale a fully armored unit... Arrows were generally aimed at joints to great affect, especially since there was only 1 properly armored person per 100 in a 1k man unit. The use of arrows were much more useful in base defense, however, since they had the high ground and could shoot DOWN. Arrow volleys, which could reach a range of 400m (trained longbowmen with an extremely heavy draw), were used for several different reasons, from initial attacks against light armored units, which generally made up the vast majority of any invading force, to disrupting enemy formations. In reality, even paid soldiers was lucky enough to have a metal helmet and wooden shield -.-
OH but I do agree that using basic arrows against heavy infantry is dumb as nuts. You use Cavalry and artillery against those slow moving pieces of meat.
@google_play88dex the reason the arrow arcs is because it's LOSING momentum. If you knew anything about firearms you'd know that they also arc once they begin to lose speed (why do you think scopes have those lines in them -.-); maths, you should do them. Arrow volleys have the same effectiveness as when you shoot a gun straight up into the air and the bullet comes back down on top of you. Arrows are extremely effective when you are already have the height advantage, but loses that effectiveness as you become closer to the ground. There is no such thing as a "piercing arrow head" though there are arrows that are designed for deeper penetration. Arrows that are designed for deeper penetration are less lethal due to a cleaner wound and having a thinner head and, thus, are non-desirable in a normal war setting. Instead, they developed the crossbow with the bolt, which sacrifices a bit of accuracy for MUCH, MUCH more punching power.