Golf balls having circular groups of tear-dropped dimples

摘要

A golf ball having improved aerodynamic efficiency is characterized by the arrangement of a plurality of modified tear-drop shaped dimples arranged on the surface thereof. The ball has a dimple-free equator which divides the ball into two identical hemispheres, each of which is broken into equal portions by a plurality of great circles passing through the poles of the ball. Each portion has a maximum circular area filled with a first plurality of non-circular dimples. A second plurality of non-circular dimples is arranged between the circular areas so that the dimple coverage on the ball is maximized.