TrackMan Newsletter #7

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Brian Manzella

Administrator
The following is the TrackMan Newsletter #7 released today.

Very exciting stuff, very cool new upgrades, priceless images and information, TOP FLIGHT company.

TrackMan - Golf Radar Solution

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SteveT

Guest
TrackMan Truth .....

GREAT STUFF, BrianM !!!! TrackMan is good science because good science measures and provides numbers that are irrefutable. Looking at Fundamental #1 - Maximizing Distance for a 90mph swing speed:

-5º AoA -- 129mph, 11.1º, 3690rpm, 191 yards
+5º AoA -- 132mph, 16.4º, 2630rpm, 214 yards!!

This data destroys anybody who advocates a descending AoA. It must have been a great revelation and redemption.
 
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Brian Manzella

Administrator
SteveT said:
GREAT STUFF, BrianM !!!! TrackMan is good science because good science measures and provides numbers that are irrefutable. Looking at Fundamental #1 - Maximizing Distance for a 90mph swing speed:

-5º AoA -- 129mph, 11.1º, 3690rpm, 191 yards
+5º AoA -- 132mph, 16.4º, 2630rpm, 214 yards!!

This data destroys anybody who advocates a descending AoA. It must have been a great revelation and redemption.
Click to expand...

It was one of the top 5 things I've learned in the last 5 years of teaching.

Do a site:brianmanzella.com google search on hitting up with a driver.

We have been at the FRONT of this for a while, after starting in the back of the bus.
 
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SteveT

Guest
BrianM ... close-minded people never learn ... open-minded people always learn ..... you have obviously learned a lot in the last 5 years ... to your credit and I congratulate you.

False science when mixed with fanaticism creates a monster ... and you have slayed your monster to emerge stronger and wiser ...!!!!!


BTW, BrianM .... with a +5º AoA ... how do you interpret the D-plane compensation?
 
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Brian Manzella

Administrator
SteveT said:
BrianM .... with a +5º AoA ... how do you interpret the D-plane compensation?
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Well with a Swing Plane tilted at a 45° angle, you have to adjust your SWING DIRECTION 5° to the right to make the path zeroed out, if you want to hit a straight ball.

21.8 yards to the right at 250 yds! :eek:
 
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SteveT

Guest
Brian Manzella said:
Well with a Swing Plane tilted at a 45° angle, you have to adjust your SWING DIRECTION 5° to the right to make the path zeroed out, if you want to hit a straight ball.

21.8 yards to the right at 250 yds! :eek:
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Thanks for the spoon-feeding, BrianM ... you obviously know your TrackMan data application!!!

Now, can you please oblige me if the Swing Plane is tilted at a steeper 60º angle like for a wedge but at -5º AoA.

(I'm draining your brain ... and relieving my brainlet!)
 
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savydan

New
Nice pictures.

Couple of changes I would make in the Glossary:

Dynamic Loft: Horizontal is 0 degrees, not Vertical. 10 degrees DL is 10 up from the Horizontal.

Spin Loft: That 2nd sentence clarifier belongs with the Dynamic Loft. It would be more correct to say the Dynamic Loft is related to the static loft and can be modified with the shaft flex and shaft lean.
 
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savydan

New
Using the new definitions:

Club Path = Swing Direction - AoA[tan(90-SwingPlane)]

Example:

Zero out your Path with a -5* AoA and a 60* SP

0 = SD - (-5)tan30*

SD = (-5)(0.58)

SD = -2.9* (to the left)
 
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SteveT

Guest
Club Path = Swing Direction - AoA[tan(90-SwingPlane)]
Club Path = Swing Direction - AoA[tan(90-SwingPlane)]
Club Path = Swing Direction - AoA[tan(90-SwingPlane)]
Club Path = Swing Direction - AoA[tan(90-SwingPlane)]

Got it ... and now I will carry my calculator when I play golf ...!!!!!


(Edit: Should I assume this only applies to RH golfers ... and tan becomes cotan for LH golfers??:D)
 
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savydan

New
SteveT said:
Club Path = Swing Direction - AoA[tan(90-SwingPlane)]
Club Path = Swing Direction - AoA[tan(90-SwingPlane)]
Club Path = Swing Direction - AoA[tan(90-SwingPlane)]
Club Path = Swing Direction - AoA[tan(90-SwingPlane)]

Got it ... and now I will carry my calculator when I play golf ...!!!!!
Click to expand...

LOL...just make sure your calculator has a tangent function or you'll have to carry the tables too!!:D
 
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SteveT

Guest
savydan said:
Couple of changes I would make in the Glossary:

Dynamic Loft: Horizontal is 0 degrees, not Vertical. 10 degrees DL is 10 up from the Horizontal.

Spin Loft: That 2nd sentence clarifier belongs with the Dynamic Loft. It would be more correct to say the Dynamic Loft is related to the static loft and can be modified with the shaft flex and shaft lean.
Click to expand...


Re Spin Loft definition: What I noted was the statement that "shaft flex and hands leading or lagging the clubhead will alter this (spin loft and dynamic loft?).

TrackMan doppler radar cannot track hands leading or lagging nor shaft flex .. it must assume these values and back-calculate other data. That's why it's imperative that an instructor's eye is needed to view the golfswing and judge the TrackMan data to that relationship. Your thoughts .....

(Btw ... I have a biiiig calculator ...lol)
 
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savydan

New
Yeah, I was going to clarify what I said earlier.

First, you could measure Dynamic Loft as zero from the vertical and positive is "leaning back" from the vertical.

However, I think most of us think in terms of what is happing near the ground. Like 10* Dynamic Loft is 10* up from the ground. Rather than 10* leaning back from the vertical.

And since Angle of Attack is zeroed at the ground, why not define DL as zeroed from the ground as well?

Re: Spin Loft. Trackman from years past had always put the effect of shaft lean and flex in the DL definition, presumably because it effected "the face". You could say it'll all come out in the wash with Spin Loft, but I think you'd want to keep the SL definition "clean" and have face in the DL and path in the AoA.

Certainly the instructor can help the golf control DL with shaft lean. Perhaps a fitter with forward kick.
 
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Dan44GT

New
DOCW3 said:
Are the heel and toe impacts as before or something new?
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heel and toe are nothing really new, especially to Trackman users. Although it is tough to quantify because of the variety of heads, swing speeds and the ability to actually know where sweet spot is and how far off you actually are. I think as of now it is a very tough thing to measure, but fairly easy to generalize. Also there is bulge and roll to drivers and the face angle measurement is from point of impact on the face. So if you hit it quite a bit off the toe, the reading might be Face Angle of 2 degrees but center face may actually be 0.0.

As always T-Man puts out a great newsletter. Not sure about the re-naming of VSP and HSP though.
 
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