1. What is Arrow FOC?

Front of Center (FOC) is a measurement that describes how much weight is distributed toward the front of an arrow. It's expressed as a percentage of the total arrow length and affects arrow flight and stability.

2. How Does the Calculator Work?

The calculator uses the FOC formula:

Where:

• \( FOC \) — Front of Center percentage
• \( L \) — Total arrow length (inches)
• \( AMO \) — Balance point from nock end (inches)

Explanation: The formula calculates what percentage of the arrow's length is in front of the exact center point of the arrow.

3. Importance of FOC Calculation

Details: Proper FOC is crucial for optimal arrow flight. Higher FOC (10-15%) increases stability for long-distance shooting, while lower FOC (7-10%) may be better for short-range speed.

4. Using the Calculator

Tips: Measure arrow length from nock groove to end of shaft (not including point). Measure balance point from nock end to where arrow balances perfectly. Both measurements should be in inches.

5. Frequently Asked Questions (FAQ)

Q1: What is the ideal FOC for target archery?
A: Most target archers prefer 10-15% FOC for optimal stability and accuracy at longer distances.

Q2: How does FOC affect arrow flight?
A: Higher FOC makes arrows more stable but slightly slower. Lower FOC increases speed but may reduce stability.

Q3: Should I measure with or without the point?
A: Always measure with all components (point, insert, nock) installed as you would shoot them.

Q4: Does FOC matter for compound bows?
A: Yes, FOC affects arrow flight for all bow types, though the ideal range may vary slightly.

Q5: What's the typical FOC range for Gold Tip arrows?
A: Gold Tip recommends 7-15% FOC depending on your specific setup and shooting style.