Heptagonal dipyramid dimple pattern for a golf ball

A golf ball comprising a spherical surface and a plurality of dimples formed on the surface, wherein the dimples are arranged in a dimple pattern defined by a heptagonal dipyramid projected onto the surface, the pattern comprising fourteen substantially identical dimple sections including seven dimple sections in a first hemisphere and seven dimple sections in a second hemisphere,

• wherein a boundary of each of the dimple sections consists of two linear side edges and a linear or non-linear base edge,
• wherein the side edges are defined such that each dimple section consists of a plurality of shared non-polar dimples each of which has a centroid that lies along a side edge of the dimple section, a plurality of dimples that are not intersected by a side edge, and, optionally, a shared polar dimple having a centroid that lies at the vertex of the two linear side edges of the section,
• wherein the dimple pattern within each dimple section has mirror symmetry across a symmetry line that extends from an intersection of the two side edges to a midpoint of the base edge,
• wherein the centroids of at least six non-polar dimples lie on either (i) every symmetry line of every dimple section, or (ii) every side edge of every dimple section, and
• wherein the at least six non-polar dimples comprise three dimples that lie closest to a vertex of the side edges, and wherein the three dimples all have the same dimple diameter,
• wherein each dimple has a diameter of 0.110 inches or greater,
• wherein the dimple sections comprises at least five different dimple diameters, and
• wherein dimples comprising a centroid having a polar angle of greater than or equal to 2° and less than or equal to 20° have a planar area (in2) satisfying the following condition for a given polar angle x of the dimple centroid:
• 1.2×10−4x2+2×10−4x≤planar area≤4.3×10−4x−7.5×10−4 where 2°≤x≤20°.