Moment of Inertia

So you have been reading driver reviews on the internet and have come across the abbreviation 'MOI' (Moment of Inertia) and you say to yourself: "What in the world does that mean?" Well here at Hit it longer golf we will give an in-depth explanation of what the Moment of Inertia means. So read closely and

<DIV><SPAN style="FONT-SIZE: 14pt">So you have been reading <STRONG>driver </STRONG>reviews on the internet and have come across the abbreviation 'MOI' (Moment of Inertia) and you say to yourself: "What in the world does that mean?" Well here at<STRONG> Hit it longer golf</STRONG> we will give an in-depth explanation of what the Moment of Inertia means. So read closely and you will have a better understanding of what your <STRONG>golf driver </STRONG>can do for you and why it will allow you to <STRONG>hit longer drives</STRONG> and straighter drives.</SPAN></DIV>
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<DIV><SPAN style="FONT-SIZE: 10pt"><STRONG>Question: </STRONG>What is Moment of Inertia or also known as MOI?</SPAN></DIV>
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<DIV><SPAN style="FONT-SIZE: 10pt"><STRONG>Answer: </STRONG>The<STRONG> </STRONG>MOI or also known as it's proper name 'Moment of Inertia is a property of physics that tells you the relative difference on how easy it will be (or how difficult it will be) to set an object in motion on a defined axis of rotation. The higher rate of moment of inertia of an object, so much more force has to be applied to set that object in a rotational motion. So the lower the MOI, of course the less force needed to make an object rotate on an axis.</SPAN></DIV>
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<DIV><SPAN style="FONT-SIZE: 10pt">To more easily understand Moment of Inertia, visualize an ice skater spinning. In the start of the spin he/she has to extend their arms and the rotation is slow. But as the skater then begins to pull his/her arms closer to the body the speed increases very noticeably. So when the arms of his/her body are extended out very wide the skaters MOI is extremely high and this leads to a slower spin because the skater is now resisting the speed of rotation. And of course when the skater pulls his/her arms in the MOI becomes lower allowing very little resistance to the rotaion. </SPAN></DIV>
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<DIV><SPAN style="FONT-SIZE: 10pt">So what in the world does this have to do with a <STRONG>golf driver </STRONG>or a <STRONG>golf club </STRONG>you ask?</SPAN></DIV>
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<DIV><SPAN style="FONT-SIZE: 10pt">Well there are many different moments of inertia factors in the performance of a <STRONG>golf driver</STRONG>. Moment of Inertia has to be defined by finding what axis the object is rotating around. There is a moment of inertia for the entire <STRONG>golf driver</STRONG> and when swung it is rotated around a <STRONG>golfer</STRONG> thoughout the swing.</SPAN></DIV>
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<DIV><SPAN style="FONT-SIZE: 10pt">The Moment of Inertia of the <STRONG>golf driver </STRONG>is very important in matching the swing feel of all the clubs in the bag. In club fitting theory's, they state that if all <STRONG>drivers </STRONG>are made to have the same Moment of Inertia the <STRONG>golfer</STRONG> will be more consistant with hitting it <STRONG>longer off the tee</STRONG>, this is because each <STRONG>driver</STRONG> will require the same effort in the swing. </SPAN></DIV>
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<DIV> In the more recent methods for matching <STRONG>drivers</STRONG> the swing feel is named swing weight matching. Moment of Inertia matching for <STRONG>drivers</STRONG> is a swing like matching operation currently only offered by the more advanced clubmakers in the <STRONG>golf driver </STRONG>industry.</DIV>
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