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Arrow Speed Formula:
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Arrow speed calculation using high-speed camera involves measuring the distance an arrow travels across the screen, the time it takes, and applying a scaling factor to determine the actual speed in feet per second (fps).
The calculator uses the arrow speed formula:
Where:
Explanation: This formula calculates the speed of an arrow by measuring its movement on screen and converting it to real-world speed using a scaling factor.
Details: Accurate arrow speed measurement is crucial for archery performance analysis, equipment testing, and bow tuning. It helps archers optimize their setup for better accuracy and consistency.
Tips: Enter screen distance in inches, screen time in seconds, and scaling factor. All values must be valid positive numbers.
Q1: What is a typical arrow speed for compound bows?
A: Most modern compound bows shoot arrows between 300-350 fps, though speeds can vary based on draw weight, arrow weight, and bow efficiency.
Q2: How accurate is the high-speed camera method?
A: With proper calibration and high frame rates, this method can be very accurate, typically within ±2-3% of chronograph measurements.
Q3: What frame rate is needed for accurate measurement?
A: For most arrows, a minimum of 1000 fps is recommended, with higher frame rates (2000+ fps) providing better accuracy for faster arrows.
Q4: How do I determine the scaling factor?
A: The scaling factor is determined by comparing a known real-world distance to its measurement on screen. For example, if a 12-inch ruler appears as 6 inches on screen, the scale factor would be 2.
Q5: Can this method be used for other projectiles?
A: Yes, this method can be adapted for measuring the speed of any projectile visible on high-speed camera footage, including bullets, paintballs, and baseballs.