Soccer balls used for the test and their panel orientations. (a, b)

Effect of panel shape of soccer ball on its flight characteristics

Soccer balls used for the test and their panel orientations. (a, b

U.S. Soccer Learning Center

Aerodynamic effects of dimples on soccer ball surfaces - ScienceDirect

Photographs of soccer balls. (a) Adidas Roteiro: smooth surface

Applied Sciences, Free Full-Text

Variation of the drag coefficient with the type of ball and panel

Shows the Orientation A and B of soccer balls in which Goff conducted

Variation of the drag coefficient with the type of ball and panel

FIFA Soccer Ball Testing and Approvals