Golf club irons having improved forgiveness, playability and performance characteristics are disclosed. The embodiments set forth parameters of various irons that affect performance either alone or in combination with other parameters when the irons are utilized to strike a golf ball. The parameters, which in some cases may be systematically progressed or varied, include golf club shaft length, striking face area, loft, coefficient of restitution, face thickness, topline thickness, swing weight, sole width at the heel and toe, and other performance characteristics.
1. A set of golf club irons, comprising:
at least three irons wherein the irons have face thicknesses that progress from about 1.9 mm for a longer iron in the set to about 2.5 mm for a shorter iron in the set,
wherein the set has 3-, 4- and 5-irons with sole toe widths from about 25.5 mm to about 26.5 mm.
2. A set of golf club irons, comprising:
a 3-, 4-, 5-, 6-, 7-, 8- and 9-iron, wherein said irons each have a face area of substantially the same size and greater than about 3100 mm2 and wherein the 3-, 4-, and 5-irons each have a face thickness of about 1.9 mm, the 6-iron and 7-iron each have a face thickness of about 2.2 mm, and the 8-iron and 9-iron each have a face thickness of about 2.5 mm,
wherein the 3-, 4-, and 5-irons each have a topline thickness of at least about 9.3 mm.
3. A set of golf club irons, comprising:
a 3-, 4-, 5-, 6-, 7-, 8- and 9-iron, wherein said irons each have a face area of substantially the same size and greater than about 3100 mm2 and wherein the 3-, 4-, and 5-irons each have a face thickness of about 1.9 mm, the 6-iron and 7-iron each have a face thickness of about 2.2 mm, and the 8-iron and 9-iron each have a face thickness of about 2.5 mm,
wherein the 3-iron has a topline thickness of about 9.4 mm, the 4-iron has a topline thickness of about 9.3 mm, and the 5-iron has a topline thickness of about 9.4 mm.
4. A set of golf club irons, comprising:
a 3-, 4-, 5-, 6-, 7-, 8- and 9-iron, wherein said irons each have a face area of substantially the same size and greater than about 3100 mm2 and wherein the 3-, 4-, and 5-irons each have a face thickness of about 1.9 mm, the 6-iron and 7-iron each have a face thickness of about 2.2 mm, and the 8-iron and 9-iron each have a face thickness of about 2.5 mm,
wherein the 3-, 4-, and 5-irons each have a sole toe width of about 25.5 mm to about 26.5 mm.