Right-spiraled feather

A right-spiraled feather is a natural feather whose curvature, when mounted correctly, causes the arrow to rotate clockwise in flight (as seen from behind).

Significance in arrow construction:

• Natural feathers come in right- or left-spiraled variants
• All feathers on an arrow must have the same spiral direction
• The spiral direction determines the arrow’s spin

Effect:

• Stabilizes the arrow through rotation
• Promotes a smooth, steady flight
• Especially relevant for angled or helical fletching

Technically, whether the feather is right- or left-spiraled is less important than ensuring all feathers on the arrow are consistent.