| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a golf club head capable of obtaining a stable driving distance, and also capable of easily controlling the direction and the trajectory of a ball. SOLUTION: The moment of inertia My in the horizontal direction with regard to the vertical axis V passing through the position of the center of gravity G is made to be 1000 to 3000 gcm2, and the moment of inertia Mx in the vertical direction with regard to the horizontal axis H passing through the position of the center of gravity G is made to be 1500 to 2700 gcm2, and further the ratio Mx/My of the vertical moment of inertia Mx to the horizontal moment of inertia My is made to be 0.8 or more.</p> |
