Excessive Arrow Drag

The grouping examples in Fig. 16 show a large pattern at long distances (90 m) but the grouping is within acceptable limits at closer distances. This pattern implies the arrow has too much drag. Excessive drag will cause the arrow to become unstable due to the rapid decay of its forward velocity. When forward velocity drops too quickly, instability occurs. This unstable flight causes poor grouping at long distances and extreme vulnerability to wind drift. On lightweight arrows, it is very important to reduce drag to a minimum to maintain maximum downrange velocity.This can be done by reducing the size (height and/or length) of the fletching or by reducing the angle of the fletching, or both.

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