[LT] Monstrous Bow SM+3

[Bruno]

Originally Posted by Seneschal

As for the "deadly spring", I don't know what you're referring to. Is there a system somewhere for calculating any of the things that would help me? I haven't seen it in any of the books, and if I try to do purely physical modelling, I'll probably get it wrong and not know how to translate it into GURPS rules anyhow.

It's a Pyramid article from issue #33 Low Tech, all about making bows.

A quick run through suggests using TL4 steel, you could get:
Draw Weight: 625 lbs
MinST: 36
Draw Length: 90"
Damage: 8d+0 imp
Acc: 4
-1/die dmg Range: 337 yd
1/2D Range: 337 yd
Max Range: 337 yd
Weight: 86.2/2.45
Bulk: -12
Cost (Bow/Arrow): $2145/$31.30


Arrows are 96 inches long, 1.25 inch diameter, listed arrows are barbed war arrows made of black walnut wood.

For folks with the spreadsheet, N is 3, thickness is 0.75 inches, stave is straight/rectangular, bow length is 192", working percentage 94%, damage is "cinematic" to be more in line with GURPS but I think cinematic damage diverts a bit at the higher ST ranges :)