A tool used in archery, specifically for calculating the front of center percentage of an arrow. The front of center (FOC) represents the percentage of the arrow’s total length that the balance point is located forward of the arrow’s midpoint. For example, an arrow with a high FOC value has more of its weight concentrated towards the front.
Understanding arrow balance is crucial for achieving accurate and stable flight. The FOC percentage influences how an arrow behaves in flight, affecting its stability, trajectory, and penetration. Historically, archers have experimented with different arrow components and weights to optimize FOC for various archery disciplines and target types. A properly calculated FOC can improve arrow grouping and reduce the impact of wind drift.
