Crossbows vs. Longbows

[Eximius Sus]

A seige arbalest could be fired accurately, by a single soldier with modest training, at up to 900 meters, every 30 seconds, and deliver 5000 pounds of force

I can't find anything in your above list of reference to back up this claim from your earlier post.

And of course, 5000 lbs draw weight does not deliver 5000 lbs of force at the target. It imparts a certain kinetic energy to the bolt depending on draw distance (work = force x distance). The weight and resulting muzzle velocity of the bolt is a more useful comparison.