FOC

Greavous · 11-25-2003, 07:34 PM

Just so I know...When calculating you FOC, do you do it with a broadhead attached or just a naked arrow?

Thanks

Kanga · 11-25-2003, 07:43 PM

broadhead attached

tabby · 11-25-2003, 09:39 PM

If you don' t mind me asking, what is FOC?

Kanga · 11-25-2003, 09:47 PM

Quote:

If you don' t mind me asking, what is FOC?

Front of Center

walks with a gimp · 11-25-2003, 11:45 PM

It' s a percentage of the the total weight of the arrow that is " in front" of the center of the finished arrow. Where the arrow balances.

Straightarrow · 11-26-2003, 05:32 AM

To add, it is important to get weight up front. This helps keep the arrow flying straight. However, too much weight and the arrow will tend to arc more, reducing some of the flatness to the trajectory. Most recommend the F.O.C. percentage to be in the 7-10% range for field tips, and 10-15% for broadheads.

tabby · 11-26-2003, 12:05 PM

OK thanks.

Toytaco · 11-27-2003, 10:15 AM

I' ve been meaning to ask what does FOC mean. Now I know. I' m assuming that the reason for the different acceptable % range for broadheads from field points is due to the length of the broadhead vs. the field point (assuming both are of the same wieght). Am I correct on this?

98Redline · 11-28-2003, 10:39 AM

It has more to do with the fact the broadheads tend to plane as they go through the air. More weight up front keeps this to a minimum.