AP2 COR

I have a question regarding the shape and COR of the AP2 irons.

I am testing the AP2 vs the JPX 825 and asked a question regarding the shape of the Titleist irons.

My question was, why is the shape of the JPX825 more rounded in the longer irons than the AP2?

The response I got back (from miz) is that quote

 "On the 825 line, the longer irons are designed to be not only forgiving, but also to have the highest COR possible in the long irons, flowing down to a more traditional iron design COR in the short irons where distance is not as important. As the set flows, the longer irons get a bit more rounded in shape because the roundness of the topline and leading edge actually help to increase the effective rebound area and increase the overall COR. Think of a trampoline. If the trampoline was shaped like a traditional iron face gauge (relatively straight on the leading edge and top with a taper to it), then the COR and amplitude of  rebound will be less consistent and maximized across the face. A more rounded shape, however, allows for a bigger trampoline resulting in a larger rebound and also a more consistent one. This is why the head shape flows as it does, eventually ending at a more traditionally shaped set of short irons."

That being said, the AP2 line is not designed to have increased COR at all throughout the set, so they follow a head shape flow that is more similar to the models in our MP line of golf clubs

Can I get a clarification from Titleist on this!

 

Walt

 

 

Walt, our design platform for AP irons is maximum forgiveness at a player preferred blade length.  To do this we use high density tungsten weighting to increase the stability/MOI.  This allows us to make the iron more forgiving without making the blade length longer, so there is no loss of workability or shot control.  The increased forgiveness translates to more consistent ball speed across a larger area of the face.  We don't look to add or increase COR through the set because good iron play is about hitting the ball the required distance and getting it to stop near the pin.  So distance control and the proper launch and distance per loft is what's important.

Through our mutli-material, high density tungsten design, we don't need to increase COR to get increased speed.  We get speed, and more importantly consistent speed through stability.  In fact, the tungsten allows us to have a strategic support bar across the back of the AP2 face to help provide solid feel.

Thanks.

Chris McGinley

VP of Marketing, Titleist Golf Clubs

Chris M

Walt, our design platform for AP irons is maximum forgiveness at a player preferred blade length.  To do this we use high density tungsten weighting to increase the stability/MOI.  This allows us to make the iron more forgiving without making the blade length longer, so there is no loss of workability or shot control.  The increased forgiveness translates to more consistent ball speed across a larger area of the face.  We don't look to add or increase COR through the set because good iron play is about hitting the ball the required distance and getting it to stop near the pin.  So distance control and the proper launch and distance per loft is what's important.

Through our mutli-material, high density tungsten design, we don't need to increase COR to get increased speed.  We get speed, and more importantly consistent speed through stability.  In fact, the tungsten allows us to have a strategic support bar across the back of the AP2 face to help provide solid feel.

Thanks.

Chris McGinley

VP of Marketing, Titleist Golf Clubs

I knew that there was a good reason why Titleist does things the way that they do vs the competition. Thanks Chris for your in depth explanation of this, makes total sense!!

Walt S

I have a question regarding the shape and COR of the AP2 irons.

I am testing the AP2 vs the JPX 825 and asked a question regarding the shape of the Titleist irons.

My question was, why is the shape of the JPX825 more rounded in the longer irons than the AP2?

The response I got back (from miz) is that quote

 "On the 825 line, the longer irons are designed to be not only forgiving, but also to have the highest COR possible in the long irons, flowing down to a more traditional iron design COR in the short irons where distance is not as important. As the set flows, the longer irons get a bit more rounded in shape because the roundness of the topline and leading edge actually help to increase the effective rebound area and increase the overall COR. Think of a trampoline. If the trampoline was shaped like a traditional iron face gauge (relatively straight on the leading edge and top with a taper to it), then the COR and amplitude of  rebound will be less consistent and maximized across the face. A more rounded shape, however, allows for a bigger trampoline resulting in a larger rebound and also a more consistent one. This is why the head shape flows as it does, eventually ending at a more traditionally shaped set of short irons."

That being said, the AP2 line is not designed to have increased COR at all throughout the set, so they follow a head shape flow that is more similar to the models in our MP line of golf clubs

Can I get a clarification from Titleist on this!

 

Walt

 

 

Chris:  I mis-spoke when I said AP2, I wanted to say AP1,sorry about that. I caught it when I read my response back to you on your response to me!