I remember from a Lindybeige video that war bows have too much draw weight, so you can’t hold it drawn like in the movies. You have to almost instantly shoot it. You want war bows to be as powerful as possible.
you could hold a bow for maybe a minute - if you had extensive training. However there is no reason for anyone to train like that (they they didn't / couldn't). Someone strong can hold 200 lbs for a minute - but not longer. Or in that same minute you could launch 6 arrows - which is why they did the 6 arrows.
No one can sustain a hold of war bow weights for 60 seconds. That's 100#+ over three fingers and I'm not sure what the quality of tabs were like back then.
