great mod but one question

[McHrozni]

Theres two factors which have an effect: the pressure and the momentum.

Pressure can be worked out by: Pressure (N/m2) = Force (N) / Area (m2)

Momentum (or kinetic energy) depends on the speed and the weight of the object, the speed being more important: Kinetic Energy (J) = 1/2 mass (kg) x speed2 (m/s2)

Linking the two is a bit tricky, as you need to divide the kinetic energy by the distance over which the force has been applied to work out the force, however given the mass, speed, area of point and distance from when it hits to when it stops (thats the tricky bit) it should be possible to work out which projectiles are best...

There is another, the differance between the materials - hardness and toughness, or however they're called in english. If the projectile is softer than the armor, it could buckle at impact, causing it to loose penetrating power or even deflect altogether, even if it otherwise could penetrate.

Secondly, a structuraly stronger material (steel vs bronze, for example) will resist being pushed out of the way with greater force, therefore diminish the penetration. This is covered to some extent, by providing two values, one for bronze armor and another for steel armor, but neither is by any stretch of imagination a single metal, but a family of different metals.

The estimates there are, at best, rough estimates. But the arrow is still way off the mark.

Overall, the simpliest way to figure it out would be to build a set of armor you were trying to test, and an authentic set of weapons, and start testing. You'll have to do that anyway, if you intend to verify your model. I imagine that there are fairly accurate models in existance, but this wasn't one of them

McHrozni

[Philippus Flavius Homovallumus]

There's also the shape of the projectile. Most of these weapons have cutting heads, which will litterally slice through armour once that little hole is made on impact. Bodkin arrows mark the high point of that technology.