D plane

[wriordan]

Bit of a noob on the d plane, but what would be the ball flight if there was neither a downward / upward nor inside/outside arc to the swing? I.e, if a machine ran a club straight along a track, back and forward, with the bottom of the club face level to the bottom of the ball?

 

[Brian Manzella]

Square face?

 

[wriordan]

Square face. Is it possible to have a square face and straight horizontal and vertical plane lines throughout the impact interval with a human being swinging the club?

 

[lia41985]

Instantaneously at max compression, sure. Better zero out that angle of attack if you want to hit a straight ball, however.

 

[DCgolf]

3 wood off the deck once in a while comes closest to zero AA that I have seen.

 

[cwdlaw223]

Bit of a noob on the d plane, but what would be the ball flight if there was neither a downward / upward nor inside/outside arc to the swing? I.e, if a machine ran a club straight along a track, back and forward, with the bottom of the club face level to the bottom of the ball?

The flight should be straight if a straight on COG/COG hit with face angle and path perfectly zero (and not gear effect). Speed and dynamic loft will determine lift and distance.

 

[wulsy]

I believe I read somewhere that this scenario leads to a draw. Why, I have no idea, because you would think the ball would fly straighter than straight but as we all know, the world ain't as simple as we'd like it to be.

 

[cwdlaw223]

The issue is lining up the COGs which are the size of a pinpoint. Otherwise, there will be gear effect and the ball will not go straight. This stuff isn't easy and I defer to Tuxen or Brian is you want a more detailed answer.

 

[Dariusz J.]

I believe I read somewhere that this scenario leads to a draw. Why, I have no idea, because you would think the ball would fly straighter than straight but as we all know, the world ain't as simple as we'd like it to be.

Hogan said it that a perfectly struck shot in 3-D should bring a very slight draw since clubhead moves on an arc from inside to inside. However, as CD said, I would be surprised if it isn't a dead straight shot assuming no arc (clubhead moving on a straight line targetwise) plus dead center, no gear effect present, etc.

Cheers

 

[Virtuoso]

.. if there was neither a downward / upward nor inside/outside arc to the swing? I.e, if a machine ran a club straight along a track, back and forward..

The ball would go dead straight with a square face.

 

[Jim Kobylinski]

i grooved a swing with little down measured by trackman in the 0-1* range at one point with a very 0 ish path and most of my shots were very straightish with a slight fall left or right depending on where on the clubface i hit it because of the COGs not lining up.