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Calculateur FOC Flèche

Calculate arrow FOC percentage

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Comment Utiliser

  1. Measure arrow length
  2. Find balance point
  3. Enter measurements
  4. Calculate FOC

What is FOC?

FOC measures how far forward the balance point is from center.

FOC Ranges

RangeClassificationUse
<0%RearAvoid
0-6%NeutralTarget
7-10%ModerateGeneral
11-15%HighHunting
16%+ExtremeBig game

How to Measure

  • Assemble arrow completely
  • Measure total length
  • Find balance point
  • Measure to balance point

Adjusting FOC

  • Heavier points increase FOC
  • Lighter vanes increase FOC
  • Heavier nocks decrease FOC

FOC Benefits

  • Better flight stability
  • Improved accuracy
  • Increased penetration
  • More forgiving

Questions fréquentes

What FOC for hunting?
10-15% FOC ideal for hunting. Provides excellent penetration and accuracy.
How to measure balance point?
Balance arrow on ruler edge. Measure from nock groove to balance point.
Can FOC be too high?
Very high FOC (16%+) maximizes penetration but may reduce speed. 10-15% best for most hunters.
Why rear-weighted?
Rear-weighted indicates missing components or measurement error. Check setup and remeasure.

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