Low trajectory long distance golf ball

摘要

A golf ball with improved distance is disclosed. The golf ball has a relatively low spin velocity coupled with a particular dimple number, diameter, depth and arrangement. The ball is characterized by a lower flight trajectory and longer total distance. The golf ball has 384 dimples +/-3% and the dimples preferably have an average diameter of 0.145-0.155 inches and an average depth of 0.0103-0.0123 inches. The golf ball core can be either thread wound or solid. The cover can be transpolyisoprene or an ionomer. The materials of the core and cover are selected so that the golf ball has a spin velocity below 2900 rpm when hit at 230 feet per second by an implement having a face angle of 13 DEG with respect to the vertical. The dimples are substantially evenly spaced over the surface of the golf ball, and the dimple depth, diameter and number are interrelated according to the following formula: [554.3(d-x)-37(D-y]2+[138.6(D-y)+926(d-x)]2=S wherein: d=average dimple depth D=average dimple diameter x=0.275-0.0041667N y=0.2790-0.033N N=the exact number of dimples divided by 100 S>/=O