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Terms Used in Golf Technology

Terms Used in Golf Technology

Golf is a well-loved sport involving terms non-technical people would find hard to understand.

Callaway’s Senior Vice President for Research and Development, Jeff Colton, and its Vice President for Golf Ball Research and Development, Steve Ogg, extends their time and effort to help readers understand some technical terms commonly used in golf.

The Moment of Inertia (MOI) described non-technically can be expressed as: the higher MOI of a clubhead leads to a ball traveling straighter and farther. Ogg said, “MOI is a concept at the heart of many recent innovations in golf equipment, from drivers to golf balls to putters. Increasing a golf ball’s MOI also optimizes its spin rate and accuracy. This is a concept Callaway Golf embraced when it changed the way its balls are constructed, moving from the traditional single-core golf ball to a dual core structure.”

Perimeter Weighting was defined by Colton as, “It improves positioning of the club at impact and enables straighter shots – something that benefits golfers at all levels.” He also added that Callaway Golf used this principle in the development of their most technologically advanced driver, the FT-IQ. Traditionally, the weight of the clubhead is heavier in the center and back but with perimeter weighting, the weight is repositioned to the edges and perimeter of the clubhead to gain higher MOI making it more forgiving as it hits.

Variable Face Thickness is the adjustment of the clubface’s thickness to maximize ball speed for longer distance and more forgiveness. Colton explained that, “In irons, variable face thickness can lower the center of gravity for optimum trajectory with each iron in the set. This delivers a higher launch angle in the long irons and better trajectory height in short irons and wedges.”

Lastly, Center of Gravity is the point where the weight of an object is balanced in all dimensions. Colton also discussed that, “In a golf club, a lower center of gravity that is farther away from the clubface results in a higher shot trajectory, a result desired by many golfers.” Custom fitting of golf clubs can help optimize the golfer’s swing trajectory.

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