United States Golf Association

Stanley E Chrapowicki

Robert A Tygar

Alexander J Smits

Frank W Thomas

Burton B Lieberman

Henry Thumm-Borst

Leonard F Anfinsen

Eric S Blasic

Mark Zagarola

Bernard C Soriano

The golf ball launching device employs an annular ring for mounting a golf ball within a barrel of the launching device upstream of a hinged cover through which the ball is mounted in the barrel. A blast of air from one end of the barrel propels the ball off the ring at a consistent velocity.

Pneumatic golf ball launching device

The test range is provided with a calibration system for calibrating the exact position of a light curtain formed by a ballistic screen. The calibration system uses a model ball which can be moved through a light screen at high speed in order to simulate the actual passage of a driven golf ball through the light screen. Positioning of the model golf ball at a point at which the golf ball just contacts the light screen serves to determine the exact location of the light screen. A laser ranging device is used to locate the calibration system relative to a launch point. Thus, the precise distance of the curtain of light from the launch point can be readily determined. The calibration system may also be used to determine if a ballistic screen is mounted in a true vertical plane.

Test range for determining the aerodynamic characteristics of a ball in

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Neshanic Station, NJ, United States of America

Stanley E Chrapowicki