The Uncentered Motion of Angled Hinging
 

Yoda told me a long time ago to place this in the incubator. Now, it has finally found a home...

Yoda,

I'm still having trouble seeing the Slice tendency of the Angled Hinge. I keep looking at Mr. Kelley's illustration 2-C-1 #3, wondering how the illustration would differ if it were Angled Hinging. And although there is no Layback with a Horizontal Hinge, isn't there some Layback with a Dual Horizontal Hinge?


The answer you seek is that the first Clubface in 2-C-1 #2A/B and #3 would be more 'Closed.' This is because the Angled Hinge is producing a Clubface 'closing' that is less than that of Horizontal Hinging. Per 1-L #17, the Clubface must be square to the Line of Flight at Separation. Therefore, with Angled Hinge Action it must be more Closed at Impact to allow for that 'Opening.' Otherwise, a slice will result.

Don't expect to understand what I'm about to say, just throw it in your Incubator in hopes of some future feathers. In Horizontal Hinging both the Shaft and the Clubface are rotating around the same Center. Hence, there is a Centered Motion and the Point of Compression is maintained. However, in Angled Hinging, the Clubface is constantly staying vertical to the surface of the Angled Plane (and more and more open to the Plane Line versus Horizontal Hinging). And this motion has no center. None. Thus, the basic characteristic of the Angled Hinge Action is a slicing, uncentered Motion. This means Compression Leakage and "Fore Right!" unless compensated by closing the Clubface at Impact Fix per 2-J-1.

This 'Closing' of the Clubface at Fix will be more with the longer Clubs because the Ball stays on the Face longer. And more time for the 'uncentered, slicing tendency' to be exaggerated.

Finally, there is no Layback with Horizontal Hinging, with or without the Dual Hinge arrangement that permits the Horizontal Hinge Action to be executed as on On-Plane Motion.
_________________
Yoda

Re: The Uncentered Motion of Angled Hinging
 

Lynn - I'm not sure I follow why angled hinge is an 'uncentered' motion? Wouldn't an angled hinge motion be 'centered' in the wrist motion? Specifically in the bend/arch of an angled hinge?

Yoda,

Nice to see your site up!

The problem I have with closing the clubface at Impact Fix is that of getting to the inside of the ball at Impact - can't be done with a square clubface, much less a closed clubface. That means to move the ball from right to left with angled hinging, the player must line up to the right of the target and pull hook it.

Re: The Uncentered Motion of Angled Hinging
 

EDZ,
Just to make sure we are on the same page - we are referring to the uncentered motion of the clubface and not the clubhead.

Horizontal hinging has a centered motion - like a door. See 2-C-1 #3. Meaning, both the clubface and clubhead are rotating around the same center. Therefore, there is no compression leakage other then what is intended, backspin.

Angled hinging does not have this. There is a little more to it - there is actually the uncentered motion of the clubhead and clubface...but essentially, in angled hinging the clubface and clubhead are not rotating around the center, therefore, the slice producing effect.

Whew. Been awhile. My brain is fried now...gotta crash out. I'll check this out again tommorrow - its been awhile since I had to think this much.

Patrick

Fair to say, angled hinge is the 'mid point' of rotation, yes. Nice post Philly.