Which part of an arrow helps stabilize its flight?

The fletching is the part of an arrow that helps stabilize its flight. Fletching consists of the vanes or feathers attached to the rear of the arrow shaft. These components play a crucial role in aerodynamics by creating drag as the arrow moves through the air, which helps to stabilize the arrow's flight path. When the arrow is shot, the fletching causes it to spin, improving accuracy and distance by making the arrow more stable in flight.

The nock, while integral for connecting the arrow to the bowstring, primarily serves to hold the arrow in place and is not responsible for stabilizing its trajectory. The broadhead is the sharp front part of the arrow designed for cutting and penetration and does not contribute to stabilizing the flight. The shaft is the main body of the arrow, giving it structure and strength, but it also does not affect the stabilization during flight in the same manner that fletching does.