1. What is Arrow Speed?

Arrow speed is the velocity at which an arrow leaves the bow, measured in feet per second (ft/s). It's influenced by draw weight, draw length, arrow weight, and bow efficiency.

2. How Does the Calculator Work?

The calculator uses the arrow speed formula:

Where:

• Draw Weight — The peak force required to draw the bow (lbs)
• Draw Length — The distance the bowstring is pulled back (inches)
• Arrow Weight — The mass of the arrow (grains)
• Efficiency — The bow's energy transfer efficiency (typically 0.80-0.90)

Explanation: The formula calculates how the energy from the bow is transferred to the arrow based on these key factors.

3. Importance of Arrow Speed Calculation

Details: Knowing arrow speed helps archers optimize their setup for accuracy, penetration, and trajectory. It's crucial for hunting, competition, and equipment tuning.

4. Using the Calculator

Tips: Enter draw weight in pounds, draw length in inches, arrow weight in grains, and efficiency as a decimal (0-1). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical arrow speed for compound bows?
A: Most modern compound bows shoot between 250-350 ft/s, depending on setup and conditions.

Q2: How does arrow weight affect speed?
A: Heavier arrows travel slower but maintain energy better over distance. Lighter arrows are faster but lose energy quicker.

Q3: What's a typical bow efficiency value?
A: Most modern compound bows have efficiencies between 0.80-0.90 (80%-90%).

Q4: Why is draw length important?
A: Longer draw lengths store more energy in the bow, which can be transferred to the arrow.

Q5: How accurate is this calculation?
A: This provides a good estimate, but actual speed may vary based on bow design, arrow spine, and other factors.