Need some math help

[Ringer]

First, how much does 1-5 degree's open or closed result in yardage from the target? Someone with a trackman might be able to tell us without the equations for it.

Second, how much does lie angle affect the angle left or right? I know for shorter clubs with more loft the effect is greater, but what are the ratios?

 

[goley]

Just my guess ... but one degree with the driver the ball is still in your average fairway, where five it is deep in the woods. If I remember correctly from a Henry Griffiths manual 2 degrees off with a sand wedge in lie anlge is about 15 feet at 100 yards and 2 degrees with a 3 iron at 200 yard is 6 feet.

Hopefully one of the experts can chime it with exact numbers.

 

[Kevin Shields]

1.5 degrees is about 3.7 yds @ 150 yd mark, 4.9 @ 200, and 6.1 @ 250

 

[Ringer]

Thanks Kevin!

 

[potterphd]

1.5 degrees is about 3.7 yds @ 150 yd mark, 4.9 @ 200, and 6.1 @ 250

Kevin, as the number of degrees increases, is the effect on the distances linear or exponential? For instance, does 3.0 degrees equate to 7.4 yards @ 150 yds or is it something more drastic such as 15 yds @ 150 yds?

 

[Festus]

If you're talking about a simple straight push or pull with no curvature, then it's a basic trig function:

x = degree open or closed

Distance off line = tan(x) * distance

So at 3 degree open (or closed) for example,
tan(3 degrees) = 0.0524

For 100 yds,

(0.0524)*100 = 5.2 yds off line

And so on...and it is linear.

 

[Frans@France]

First, how much does 1-5 degree's open or closed result in yardage from the target? Someone with a trackman might be able to tell us without the equations for it.

Like some other said : It depends
a)if you talk about swingpath and face angle being the same or clubpath being 0 and face angle being open or closed.
b) being on the sweetspot
c) the club you are hitting

Below statements are from the TM manual :

If center impact on driver clubpath 5.7 inside out with face 1D closed will create a 45y left @ 250 carry

If 1/2 inch from the sweetspoot in direction of the toe, face angel 0D and clubpath 0D you will see 35y left @ 250

at 0.14 inch (like a dimple) from the sweetspot, face 0d, path 0D, 10y@250

But with an iron 6

If 1/2 inch from the sweetspoot in direction of the toe, face angel 0D and clubpath 0D you will see 8y@160

at 0.14 inch (like a dimple) from the toe, face 0d, path 0D, 2.2y@160

Second, how much does lie angle affect the angle left or right? I know for shorter clubs with more loft the effect is greater, but what are the ratios?

According to Maltby : If having the toe up 4Degree at impact with an Iron 9 (48 Degree), you will get a 3Degree tilted left face. An a driver 11 Degree with the same 4 degree up you will get a 1degree tilted left face.

Therefor lie is more important on irons then low lofted drivers.