What is FOC???
 

What is FOC? What does FOC do? Is a higher number better than a lower number FOC? What is a good FOC? All I know is what it stands for and it's really buggin' me for some reason. [>:]

RE: What is FOC???
 

FOC stands for Front Of Center.

For fixed blade broadheads I like to keep my FOC around 12%.

RE: What is FOC???
 

So is 11% better than 12%? Or is it situational? Very confused. [:@]

RE: What is FOC???
 

FOC means Front of center or forward of center.

It is the point on your completely fletched and set up arrow shaft where it will balance.

Recommended is bewteen 10 and 12%.

RE: What is FOC???
 

9% is Ideal forward of Center
here is the most accurate way to determine forward of center...

Get a long finishing nail and nail it into a wall just enough to get it snug without falling out. Now with your finished arrow find the balancing point on the arrow and mark that spot on the arrow.

Measure from the throat of the nock to the end of the shaft ( do not measure the point or insert) this is the cut length of your arrow.

Now, divide this measurement by 2 this will give your center of the arrow measurement.

Mark the center of the arrow (from the throat of the nock to the center).

Measure the distance between the balancing point to the center.

Multiply this measurement by 100 then divide that multiple by the arrows cut length.

This will give you your FOC%

RE: What is FOC???
 

For the Overly Concerned!;)

RE: What is FOC???
 

For Optimal Contengentcy

RE: What is FOC???
 

Fussing Over Crap

RE: What is FOC???
 

Reading the responses it would appear there is some disagreement on the ideal FOC--ie--9 v. 12. Can someone explain in practical terms how and why a 12 FOC is better than a 9FOC or vice versa? Does the speed the arrow is flying make a difference? My present setup is 10+--I'm contemplating a broadhead change that would change it to a 9. What practical difference does it make? Would I be correct in assuming that the only true test is how broad heads actually fly. Thanks in advance.

RE: What is FOC???
 

Well, I don't have a clue where that "9% is optimal" stuff came from. Everything I've ever seen suggests a range from 10-12%.

If you add, "under less than perfect conditions", that's totally, absolutely, 100% correct.