hey. i found this online calculator

http://www.myoan.net/climbart/climbforcecal.html

but i think its mistaken. if i simulate a fall with a 80 kg climber, that falls 1.5 meters for a factor 2 fall with dinamic rope, i get a shock of 9 kN on the climber.

then i change the 1.5 meters for 15 meters and i get the same 9 kN. this doesnt sounds right, since obviously if the lenght of the fall increases, the speed increases, right??

so does anyone knows of a good, accurate calculator??

thanx!!