Arrow spine

[joetapley]

For info on Cartel arrows the following site is quite usful.

http://www.cesenarco.com/

[Rik]

And I'll say it again; if the description of the way Cartel measures the spine is to be believed, then the number on the shafts is not a spine rating...

For the Triple range of arrows the spine is determined as the weight required to deflect the shaft by 20mm with the shaft supported at points 500mm apart.

This would give a set of numbers with *increasing* values as the shafts get stiffer (more weight needed to bend the shaft).

So the numbers on the shafts are not the spine measured by that method.

IF they are based on a spine definition at all, it is most probably one of the same sort as Easton's (deflection distance of the shaft). Unless they're doing something odd, like starting with a 1 kilo weight and seeing how much weight they have to take away to achieve the desired deflection. I can't see that, somehow.

Worst case scenario, we're not even getting silence, we're getting disinformation...

[joetapley]

Rik
The number on the shaft is just a 'part number' see the listing of 'spine' against part numbers.

Main problem is the use of the very vague term 'spine' which seems to mean 5 different things to 5 different people (and actually does ). To be avoided.

Thanks to every one for your input on this. OK it's decision time. Spine appart what is the best choice of arrow manufacture? Navigator or Tripple? And it seems an over stiff arrow on a compound is not a problem. So now I'm looking at 430 Navs. Would these be better or worse than a 400 tripple as sugested by Marcus? Price wise there is little in it.

[joetapley]

I don't shoot compound, and don't have all the numbers like e.g. point weight, speed but flight simulation suggests the triple as marginally the best arrow performer.

'Course practical experience might totally contradict 'theory'.

[Rik]

Originally Posted by joetapley

I don't shoot compound, and don't have all the numbers like e.g. point weight, speed but flight simulation suggests the triple as marginally the best arrow performer.

'Course practical experience might totally contradict 'theory'.

Hah. I saw a sig somewhere:
"in theory there is no difference between theory and practice. In practice there is."

I think Marcus' take on it was as supportable as any: find out which is thinner and heavier and go with that...

[Marcus26]

Between the Triple and the Nav the Triple will drift less in the wind as it's slightly thinner and slightly heavier.