earticle

영어

The purpose of the study was to examine what phenomenon took place after swing with three kinds of drivers manufactured specially to examine an effect of change of head weight in swing on quality of pitch. For test, the study manufactured clubs with different balances-DO, D2.5 and D5- and analyzed quality of pitch with trackman. When pro golfers hit balls in about 107mile head speed, the study investigated their accuracy and direction. As the results, a club with D2.5 in head weight was the best accuracy and direction. In the light head D0, the study could see that swing orbit moved toward outside/in, had a high trajectory and consequently had a lot of hooks. A club with heavy head of D5 had the same result as D2.5 club in the side of efficiency. However, in all factors of overall driving distance and direction, it was not beyond D2.5. Averagely as much as head is light, there were diverse deviations such as hook, slice, fade and throw after impacting. The deviation was reduced as much as head was heavy. Examining D2.5 club with the best result, it had fade moving to the right side in the landing point although face was somewhat closed in the impact point. In flight time, fade had less time than hook. However, in direction and driving distance, it had a little deviation and the best direction and driving distance.