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Author Topic: Same Pin-PAP, Different Pin-CG?  (Read 1574 times)

RSalas

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Same Pin-PAP, Different Pin-CG?
« on: August 26, 2003, 01:11:34 AM »
I have some hypotheticals for all you ball physics wonks out there.  Suppose you take three undrilled balls of the same model, all with identical pre-drilling specifications (gross weight, top weight, surface preparation, etc.).  All three are drilled with the CG in the grip center, and with the same pin-to-PAP distance (say, five inches).  None of the three have balance holes.

Ball #1 has a pin-to-CG distance of one inch.
Ball #2 has a pin-to-CG distance of four inches.
Ball #3 has a pin-to-CG distance of seven inches.

Assume further that these balls were drilled for a prototypical right-handed tweener, say 16 MPH or so on the radar gun with an initial rev rate of about 275.

The questions are:  Will there be a discernable difference in the reactions of these three balls?  If so, what will the differences be between them?  Also, would these differences, if they exist, be magnified in a ball with a larger flare potential?

Thanks in advance.
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T-GOD

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Re: Same Pin-PAP, Different Pin-CG?
« Reply #1 on: August 26, 2003, 05:40:07 PM »
Yes, there will be a big difference between the three. The farther out the pin to the CG, the more length you'll get and the sharper it will break. This is because the core is off center in the ball, so it lopes more when the pin is out farther. =:^D

T-GOD

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Re: Same Pin-PAP, Different Pin-CG?
« Reply #2 on: August 27, 2003, 08:56:40 AM »
King,
quote:
hmmm, in one post ending cg is dominant, in another it is core shape.
I didn't say anything about the core shape in my post. The core "position" is different, in this example. =:^D