Pga Approved Golf Driver Length And Distance
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Michael Breed, host of ‘The Golf Fix,’ teaches how to find the proper length of your driver shaft and gives a drill to maximize distance. We all want to increase our distance with the driver. And length off the tee is held is such high regard that many amateur golfers kid themselves that they drive the.
Miles of Golf feels one of the very important parts of fitting a customer for a driver is the length of the driver. That is why the Cluboratory, our fitting center, has drivers of varying length. This paper will describe why shaft length is critically important in fitting a driver.
We all know how important shaft length is for an iron. It determines impact position on the face, interaction with the turf, and posture at address. Drivers nowadays are being made longer and longer. Cobra is actually releasing a 48” driver called the Long Tom for 2012. The average length of a driver 5 years ago was approximately 45” long. In 2011, the average driver length of the brands that we stock is 45.73”, and that number is only going to go up in 2012. In concept, going to a longer shaft is a great idea since in most cases the longer the shaft the faster the head will travel.
So if a longer driver will increase swing speed, why write about it? While fitting in the Miles of Golf Cluboratory™, we see a different picture play out that goes much deeper than raw club head speed. The key for hitting the ball far is to translate the club head speed into ball speed. Smart Plant P.
If swing speed is increased, but the ball speed remains unchanged, then the extra club head speed is useless. The true number to pay attention to is ball speed and its relationship with club head speed. This relationship is called Smash Factor, and we use this number to give us an efficiency rating. The maximum speed a ball can come off the face of a golf club is one and a half times greater than the speed of the club head. This is the limit that is set by the USGA. I personally fit more customers into 43” drivers than 46” or longer drivers. The reason I fit for a 43” driver is simple: it performs better.
One example is from a guy I fit not too long ago. The player was a strong guy, about a 15 handicap with some consistency issues. Anything longer than 43” resulted in erratic impact all over the face, with erratic ball flight to match. As soon as he had a 43” heavy, stiff driver in his hands, the contact on the face became much more consistent so did his ball flight. His launch conditions (speed, launch angle, spin rate, spin axis, etc) improved dramatically as well.
His club head speed (which is the reason that a person would go to a longer driver) was exactly the same as a 45.5” driver. Despite losing 2.5” of length, the speed was identical. This is a common occurrence during fittings on the TrackMan machine. So the big question is: why do we fit drivers of different lengths when all of the new drivers coming to market are approaching the 46” mark?
Due to the volume of questions that we get on this topic, as well as personal curiosity, I decided to do a little testing and get actual numbers to help support a conclusion. The Testing We had 10 players from around the shop ranging in swing speed from 78.4 mph to 116.1 mph and handicaps ranging from scratch to 10 participate in this study. For the testing, everybody hit the Titleist 910 driver in the head (D2 or D3) with the loft, face setting, and shaft of their choice. The Titleist driver was chosen for the testing because we have the ability to match swing weight by adjusting the weight in the back, and we have multiple shafts that are exactly the same but are available in different lengths (example: Aldila RIP Alpha 60 stiff flex in 44.5” and 45.5”). Every club in this test, swing weighted to a D4 or D5. Each individual hit 10 balls with each driver length in no particular order.