FreeLists / si-list / [SI-LIST] Re: New Math?

["Dagostino, Tom" <tom_dagostino@xxxxxxxxxxx>]

About a 6 pack

Tom Dagostino
Modeling Manager
Mentor Graphics Corp.
SAS
tom_dagostino@xxxxxxxxxx
503-685-1613


-----Original Message-----
From: Todd Westerhoff [mailto:twester@xxxxxxxxxxx]
Sent: Friday, February 01, 2002 11:41 AM
To: Si-List (E-mail)
Subject: [SI-LIST] Re: New Math?



Does anyone know what the standard test load condition for a golf ball is?

Have a good weekend, everyone!

Todd ;-)

Todd Westerhoff
SI Engineer - Hammerhead Networks
5 Federal Street - Billerica, MA - 01821
email:twester@xxxxxxxxxxx - ph: 978-671-5084
============================================

"Oh, but ain't that America, for you and me
 Ain't that America, we're something to see
 Ain't that America, Home of the Free
 Little pink houses, for you and me"

- John Mellencamp





-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Doug McKean
Sent: Friday, February 01, 2002 2:28 PM
To: Si-List (E-mail)
Subject: [SI-LIST] Re: New Math?



The flight of the golf ball is interesting since there 
are basically two parts to it dependent upon the 
air flow around the ball: laminar flow and turbulent 
flow.  The laminar flow is achieved by pros or 
very good amateurs simply by way of speed when 
they first hit the ball.  Then, somewhere during flight, 
it backs off to turbulant flow where the draws and 
fades come into play. 

Turbulant flow is achieved by everyone else. 

Most notably was when I watched Nicholas discussing 
putting a slight fade on the ball at about the 300 yd 
mark with his caddy at a tournament long ago. Sure 
enough, the ball went straight out, then faded. Proof 
of how the pros can control this laminar/turbulant thing. 

As a side note, the British Army long ago did a series 
of experiments with muskets to determine the distance at 
which maximum penetration for a musket ball can occur.  
It was assumed that the closer the target, the greater 
the penetration.  Well, it turned out that somewhere 
around the 30 yard range was max penetration. No one 
could explain it back then and I'm not sure if it could 
be explained now. But it's something like that which 
determined the optimum distance for firing line-to-line 
in an effort to get 2-for-1 shots. 

- Doug McKean 


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