"Radial" and "Longitudinal" reference (TGM) the Pressure Point (Senses and Directs) Alignment with the Clubface at Release (Pulley). "Radial" is termed to describe the PP at Right Angles to the Clubface and "Longitudinal" is termed to describe the PP which is Parallel to the Clubface.
The Pivot, Power Package and Pulley all contribute to Angular Acceleration regardless of Hitting or Swinging. The term "Throwout" is used to describe the Clubhead being moved around the Pulley by Centrifugal Force (Radial Acceleration) while "Driveout" is used to describe muscular effort propelling the Clubhead around the Pulley (same Radial Acceleration). Regardless of Method, it is the "Pulley" that creates Clubhead Acceleration and not the type of Thrust or how the PP is Aligned to the Clubface.
Daryl, we are speaking physics. I am slowly developing the physics of the "sweet spot" . At this point I have not assembled the club only a "test club" . Radial is a vector from the center -Z axis as defined and tangential is in the X,Y plane at a constant redius from Z=0, X=0, Y=0.
If you have the Physics of the "sweet spot" please contribute.
#3 pp is, as the word is. a POINT. with dimension. only sensing one dimension. The radial sensing is apparently accomplished within the "checkrein" response an I find no specific ref. in TGM to this sensor
HB
Last edited by HungryBear : 12-10-2011 at 05:35 PM.
Off topic but I mention that the "tip" either lag or lead and lead is deceleration. No Lag! It has been talked about here, the forward bending shaft. I can see in many players what I will call a "faux lag" the right wrist does not maintain a fixed bend. It is easy to feel pp#3 by unbending the right wrist.
Now, lets displace the Center Of Mass of the club head from the axis of the shaft. 2 additional pieces of Physics are introduced. Toe up/down and torque.
1. with the COG thailing and on the plane we have toe up when accelerating and toe down when decelerating.
2. as the COG leaves the plane of the shaft we have toe down equated to radial force and torque- laging (tending to lay the COM back-open if above the shaft plane) when accelerating and leading(tending to have the COM pass the shaft- close of above the shaft plane- Roll under if COM is below the shaft plane (Driver as example)) when decelerating.
All making the dynamics a computer learned event.
ie. learn a motion then let the computer learn how to hit the ball.
I include some shaft dynamics data as illustration.
PS.
This data shows that the pro's have a forward bend in their shaft at impact- Throwaway- I think so, Also a loss of effective Club Head mass. But lets hold that analysis for another post.
Last edited by HungryBear : 12-27-2011 at 05:32 PM.
Now, lets displace the Center Of Mass of the club head from the axis of the shaft. 2 additional pieces of Physics are introduced. Toe up/down and torque.
1. with the COG thailing and on the plane we have toe up when accelerating and toe down when decelerating.
2. as the COG leaves the plane of the shaft we have toe down equated to radial force and torque- laging (tending to lay the COM back-open if above the shaft plane) when accelerating and leading(tending to have the COM pass the shaft- close of above the shaft plane- Roll under if COM is below the shaft plane (Driver as example)) when decelerating.
All making the dynamics a computer learned event.
ie. learn a motion then let the computer learn how to hit the ball.
I include some shaft dynamics data as illustration.
PS.
This data shows that the pro's have a forward bend in their shaft at impact- Throwaway- I thin so, Also a loss of effective Cluh Head mass. But lets hold that analysis fo another post.
Off topic but I mention that the "tip" either lag or lead and lead is deceleration. No Lag! It has been talked about here, the forward bending shaft. I can see in many players what I will call a "faux lag" the right wrist does not maintain a fixed bend. It is easy to feel pp#3 by unbending the right wrist.
hb
Can you point to golfers that don't unbend the right wrist?
Your question requires more information on dynamics.
If you are questioning forward lean- maybe, maybe not but forward lean is not the critical factor.
If you are questioning COM vs. hands on grip, the answer is yes. The shaft will be bent forward- lag gone, effective mass decreased. Mass is developed from the ground or the last lagging component closest to the clubhead.
HB
ps. Quick reply Huh?- just happened to be here editing.
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