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11.7 foc of 10.53

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11.7 foc of 10.53

Old 06-28-2004, 01:28 PM
  #1  
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Default 11.7 foc of 10.53

I calculated my foc on goldtip.com. I put in 5" duravanes as my fletching. I shoot the 4" bohning vanes. I put in the 5" duravanes in because they weigh 34.5 grains all together and my bohning 4" vanes are 36 grains. Should I have put in the 4" duravanes since my vanes are 4", or should I just get the vanes closest to the vane weight?

With the 4" vanes my foc is 11.7. With the 5" vanes my foc is 10.53.

Would the foc be calculated by the weight or is the the length of the vanes? Thanks
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Old 06-28-2004, 01:42 PM
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Default RE: 11.7 foc of 10.53

Would the foc be calculated by the weight or is the the length of the vanes? Thanks
A combo of both

Both numbers are fine - forget about it.
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Old 06-28-2004, 01:51 PM
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Default RE: 11.7 foc of 10.53

If you are really concerned about it just measure and calculate it yourself. It will be the most accurate method. Use a pencil to balance the arrow.


http://home.att.net/~sajackson/archery9.html
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Old 06-28-2004, 08:57 PM
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Default RE: 11.7 foc of 10.53

Yeah, don't worry about it. Both numbers look acceptable to me...really shouldn't notice any change in arrow flight between the two.
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Old 06-29-2004, 06:10 AM
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Default RE: 11.7 foc of 10.53

I'm with Rack & Doc....it's fine regardless.
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