A sixth impact law?
 

According to Cochran and Stobbs (Search for the perfect swing) there are 5 factors at impact which can affect the flight of the ball. In discussion with a few other pros recently a colleague suggested that a sixth law may have been overlooked by cochran. He suggested that loft at imact (dynamic loft) is another to join Face angle, clubhead speed, path, angle of attack, centredness of strike.
Any thoughts on this?

Wow! Certainly makes perfect sense to me.

Matt

Not read the book but I would say that loft at seperation and clubhead speed at seperation together with hinge procedure would be major factors -assuming the swing is on plane.

Neil
I am a recent golfing machine pupil but you would be very interested in this book as it was written by a man of science also. What is your view on if the clubface was closed by 2 degrees at impact (to a good path) but on separation it was now say square? Where/ what way would that ball fly?
many thanks

I think-it will fade right!Right?-depending on the loft of the club!

Anybody else ?
 

Anybody else have any views on this one .Seems to me to be hitting procedure with vertical hingeing(?)Would anybody want to do this on any swing ?:question: (or hit)

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Sounds like Angled Hinging. Hitters, by the way, often set up with the Clubface somewhat CLOSED. If the ball is coming off SQUARE at SEPARATION, AND THE PLANE LINE IS STRAIGHT, WITH CLUB ON PLANE, the ball should take off STRAIGHT, AND PROBABLY FADE A LITTLE.

lagster ,help me here, if the clubface is closed 2 degrees AT IMPACT,and is square at seperation I assumed it must be opening. If "a good plane " is what I consider to be inside aft quadrant FROM A SQUARE/ SQUARE setup, surely this is vertical hingeing?. I find it difficult to feel what is being described -it is the "closed at impact square at seperation'bit which is getting me:BangHead:

?????
 

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I think I see what you are saying. Angled Hinging is technically "simultaneous closing and layback."

If the Plane is good... I'm not sure a CLOSED FACE can hit the Inside Quadrant AT IMPACT. It would have to BE OPENING to get to SQUARE at SEPARATION.

This seems to me like an Action similar to what Trevino might have. If the ball comes off Square at separation, and the club is on plane... well.

Maybe some others will chime in.

Angled Hinging and Straight Ball Flight.

Clubface Closed at Impact, therefore Impact Point must be on Outside Aft (but Visual Inside Aft).

Clubface Square at Separation, Impact Point dead centre.

Simultaneous Closing and Layback refers to the Clubface Closing relative to the Plane Line.

Note that Impact Point changes between Impact and Separation. This doesn't happen with the Centered Clubface Motion of Horizontal Hinging.