당신은 주제를 찾고 있습니까 “d plane golf – D PLANE SIMPLIFIED – What is D-Plane?“? 다음 카테고리의 웹사이트 https://chewathai27.com/you 에서 귀하의 모든 질문에 답변해 드립니다: https://chewathai27.com/you/blog. 바로 아래에서 답을 찾을 수 있습니다. 작성자 Steve Johnston PGA 이(가) 작성한 기사에는 조회수 19,293회 및 좋아요 267개 개의 좋아요가 있습니다.
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Irons straight but slice your woods? What is D plane?
D plane is a hard one to get your head around. I hope this helps. Check out my articles in Bunkered magazine or find me in the professional shop at Peebles Golf Club
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What is the D-Plane in Golf? | The DIY Golfer
Definition: “the vertical orientation of the club face at the center-point of contact between the club and the ball at the time of maximum …
Source: www.thediygolfer.com
Date Published: 8/17/2021
View: 9149
The D Plane – The Swing Engineer™
The D Plane is a term first coined by the physicist Theodore Jorgensen in his book The Physics of Golf. Professor Jorgensen investigated the golf swing …
Source: www.theswingengineer.com
Date Published: 8/26/2021
View: 5040
Clark: Understanding The D Plane – GolfWRX
The D Plane was popularized by Theodore Jorgenson in his seminal work “The Physics of Golf” back in 1999. He used the term D Plane because it “ …
Source: www.golfwrx.com
Date Published: 1/16/2022
View: 3052
Tuition| D Plane Expained – Golf Lessons Bolton
D plane is what gives the ball its flight characteristics, it is a correlation between the clubs blade at impact and how the clubs center of gravity is …
Source: golftuition.net
Date Published: 6/5/2022
View: 8147
Understanding The D-plane By James Leitz – TrackMan Golf
Using a 3D model, Leitz illustrates the D-Plane and its influence on ball flight. He makes it easy to understand this difficult, yet essential …
Source: blog.trackmangolf.com
Date Published: 10/13/2022
View: 1428
What Is The D Plane In A Golf Swing? – The Annika Academy
It means that a golfer has swung through the impact zone, backs down and back up from a seated position during an on-hold golf swing. During a …
Source: www.theannikaacademy.com
Date Published: 2/10/2022
View: 8163
D Plane – Plugged In Golf
The D Plane is a model used to explain ball flight. The D Plane consists of two vectors: the top vector is the 3D Club Face and the bottom vector is the 3D …
Source: pluggedingolf.com
Date Published: 2/16/2022
View: 7006
Simplest Explanation on D-Plane I’ve Found : r/golf – Reddit
What he means by “a shade farther forward or back” is ambiguous, but he’s ultimately saying that the ball position should be wherever your swing …
Source: www.reddit.com
Date Published: 4/17/2022
View: 8214
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주제와 관련된 더 많은 사진을 참조하십시오 D PLANE SIMPLIFIED – What is D-Plane?. 댓글에서 더 많은 관련 이미지를 보거나 필요한 경우 더 많은 관련 기사를 볼 수 있습니다.
주제에 대한 기사 평가 d plane golf
- Author: Steve Johnston PGA
- Views: 조회수 19,293회
- Likes: 좋아요 267개
- Date Published: 2017. 3. 9.
- Video Url link: https://www.youtube.com/watch?v=qgM3hVMJeuo
What is the D-Plane in Golf?
The D-Plane..
Is this a swing theory?
Who came up with it?
Why should anyone care?
In short, this was a theory that originated in the book The Physics of Golf by Theodore Jorgensen and later popularized by Trackman Golf. The “D-Plane” is an extension of our “new ball flight laws” which provides a more comprehensive model for understanding spin and ball flight. In the previous post, I covered the basics of ball flight, while in this post, I will be getting into additional factors such as why the ball rises, and how weather conditions affect ball-flight.
Since this previous post covered the absolute basics of ball-flight, I suggest taking a glance at that before reading this post. Most golfers will find that this previous post of mine is sufficient for them in understanding the flight of the golf ball. That being said, it doesn’t even begin to cover ALL the factors that affect ball-flight. As a recap, we established the following 12 factors affecting the flight of the ball:
Club-face angle Club-path angle Relationship between sole of club and ground at impact (lie angle) Point of contact on the face of the club Angle of attack Dynamic Loft Velocity of club-head (at beginning and end of impact) Mass of club-head Quality of contact Wind Temperature Elevation difference between start point and end point
In this post, I will be explaining the factors in bold through the lens of the “D-Plane” concept, and then move on to the remaining factors.
Essentially, the D-Plane is a model for understanding the starting direction, spin axis, and lift that the ball experiences thanks to the dimpled design of modern golf balls. The main difference between understanding the D-Plane and understanding the basic club-face angle to club-path angle is the fact that the D-Plane includes a vertical club-path vector in it as well. I have not yet explained the horizontal and vertical club path vectors, so you may want to read the first half of my post about the inclined plane in conjunction with this one, as they complement each other.
0 x Have you heard of dynamic loft? Share your thoughts below. The D-Plane also takes into account the dynamic loft of the club at impact, which is also a fairly new concept.
In summary, the D-Plane involves the following factors:
Club-path angle Club-face angle Dynamic loft Angle of Attack The Venturi Effect (derived from Bernoulli’s Equation, also known as “lift”)
The D-Plane
Since I have already covered the concepts of club path angle and club face angle, I will not be going into detail here. As a reminder..
Club Face Angle: “the horizontal orientation of the club face at the center-point of contact between the club and ball at the time of maximum compression”
Club Path Angle: “the horizontal movement of the club head’s geometric center at the time of maximum compression”
Now, for the new concepts:
Dynamic Loft
Definition: “the vertical orientation of the club face at the center-point of contact between the club and the ball at the time of maximum compression.”
Simply put, the dynamic loft is represented by a perpendicular vector to the club-face at impact. On drivers and fairway woods, the faces have a slight convex shape to them, which means that the dynamic loft will be increased/decreased when struck high or low on the face. As you may infer, the dynamic loft is largely responsible for the initial trajectory of the golf shot.
Angle of Attack
This concept is fairly difficult to understand without a clear concept of the inclined plane, so if it becomes blurry at any point, review the inclined plane post.
Definition: “The vertical movement of the club head’s geometric center at the time of maximum compression”
Lift and Drag
Out of all the components in the D-Plane, this is arguably the most difficult concept to wrap your head around. If you do not feel like thinking deeply at the moment, just remember that a) the golf ball will rise when it has backspin, and b) the golf ball will curve in the direction of its spin axis tilt.
For the curious golfers out there, bare with me while I attempt to explain fluid dynamics in a few short paragraphs.
In order to do this, lets start by asking the question, “What is air?”
Although it doesn’t sound natural to say it, air is considered a “fluid,” and thus follows the laws set out by Bernoulli’s Principle. In short, this equation explains the inverse relationship between the speed of a fluid and the pressure of the fluid.
“In steady flow, the sum of all forms of energy in a fluid along a streamline is the same along all points in that streamline.” In other words, when a fluid is forced through a smaller area, it inherently increases its flow speed to conserve momentum, and experiences a smaller static pressure (conservation of momentum). In addition, fluids tend to flow from an area of high pressure to an area of low pressure.
If you don’t believe me, take two sheets of paper, and hold them vertically next to each other. Now blow between the two sheets. Contrary to your intuition, the sheets of paper will come together. This is because you have increased the speed of the air between them, thus lowering the static pressure of the fluid between the sheets. The pressure of the air on the outside of the sheets is not moving, which means it has higher pressure, and therefore will push in on the sheets of paper.
Knowing all this, we have a better chance of understanding why the golf ball flies as far as it does (often in the wrong direction for most golfers).
Consider the diagram below:
In the picture above, I have drawn a golf ball and the visual representation of air in the form of little lines. The longer lines represent air moving at a faster speed, and this image is from a “side-on” view of the golf ball.
The ball is traveling leftward in the image, which causes “drag.” You know that feeling when you stick your hand out the window of your car on the highway? That’s drag.
What is happening is the air at the front-center of the ball is stopping completely, causing an area of high pressure. The air that doesn’t stop at the front-center will move at a higher speed around the ball, and will continue in a tangential path to the top and bottom of the ball as indicated in area “A” and “B.” Although most of the air flows in that tangential direction, a thin layer breaks off in a “wake” behind the ball (area “C”), which is an area of low pressure.
So not accounting for spin yet, we have established that the front of the ball experiences high pressure, while the back of the ball experiences low pressure. Fluids move from high to low pressure, therefore, there is a “drag” force pushing against the golf ball.
Now, consider what happens when the ball is spinning.
When the ball spins, the rough surface of the golf ball (thanks to the dimples) grabs hold of a layer of air (red dashes), and drags it in a clockwise direction (the direction of the spin). Since the air is moving rightward as a result of drag, that layer of air (caused by the dimples and spin) will be moving faster in region A (because it is moving in the same direction as the air), and moving slower at the bottom of the ball (region B). Once again, fluids move from high pressure to low pressure, and thus the ball is “lifted” as a result of the dimples and spin. In addition to this lift, the ball still experiences drag as a result of the high pressure at the front of the ball compared to the low pressure at the back of the ball.
Finally, consider what happens when the spin axis is tilted in either direction. The drag force is still the same, but now, the areas of low/high pressure caused by the dimples and spin are favoring one side of the ball, and therefore the ball experiences “lift” in a sideways direction.
So what is the D-Plane??
We have finally defined all the components of the D-Plane, so explaining the concept will not be all that difficult.
Essentially, the D-Plane is a triangular plane that is formed by joining two straight lines:
Line 1: The directional line the club is moving at time of maximum compression
Line 2: The directional line perpendicular to the club face
Let’s start with the first line, which is actually the combination of club path angle and angle of attack. In my post about the inclined plane, I talk about how the club has both a horizontal and vertical directional vector. With some simple vector addition, we can derive this “sum” vector that represents the first line of our D-Plane, and combines the horizontal and vertical components of motion together.
For the second line, we are again looking at the combination of two components. No vector addition is necessary, because we can explain this second line using a magnetic lie angle tool. Not only does this lie angle tool show us the dynamic loft at impact, but it also shows us the club-face angle at impact.
Now that we have derived both lines, all we have to do is join them in a single inclined plane:
The D-Plane is just a fancy way of explaining the “new ball flight laws” and the venturi effect all in one. The initial starting direction of the ball is on a line within the D-Plane slightly below the perpendicular line (dynamic loft/face angle), and “lift” (as explained in the Venturi effect) causes the ball to move “up-plane” towards the line representing dynamic loft.
It is a useful model because of how intuitive it is.
If you tilt the D-Plane, the spin axis is tilted, and the ball curves.
If you increase the angle between line #1 (the sum vector of club path angle and angle of attack) and line #2 (the dynamic loft/club face angle), you increase the amount of spin. This will all start to feel more “applicable” after reading the next two posts in the instructional series.
Other Ball-Flight Factors
Through the concept of the D-Plane, we can understand how the first 6 factors on our list affect the flight of the ball, but our understanding is still incomplete. In this section, I will be explaining the remaining factors, which are comprised of:
Velocity of clubhead (at beginning and end of impact) Mass of clubhead Quality of contact Wind Temperature Golf Ball (coefficient of restitution) Elevation difference between start point and end point
To maintain the collective sanity of golfers, I won’t be getting too technical here, but will be covering the essentials that should provide practical benefit to any golf game.
Velocity of the Club-head
This one is simple. Ceteris Paribus, increasing the velocity of the clubhead is going to increase both the drag and spin imparted on the golf ball during flight. This means that the ball will experience more lift and will curve further offline when the spin axis is tilted in either direction.
Practical conclusions?
Golfers with higher swing speeds will benefit greatly from a proper club-fitting, which will allow the golfer to reduce the high spin rates which factory shafts inherently create. Those who do not swing as fast should not worry as much about a fitting, but would still benefit from one.
When it is windy, swinging faster is the kiss of death. Learn how to hit a knock-down shot with a bigger club!
Mass of the Club-Head
This factor is slightly different than the previous. All things equal, increasing the mass of the club-head increases the spin, drag, and lift on the ball, but only to a certain extent. After reaching a certain weight, the increases in distance will plateau.
Conclusions?
Generally, there is no point in adding large amounts of weight to the clubhead. The only useful benefit of adding weight to the club head is for a better “feel” see my post on swing-weight
Quality of Contact
Note: Although striking the ball “off-center” described as the “gear effect” would technically count as “poor quality” of contact, I will not be considering it under this section. Here I will be assuming that the golfer has made center contact, but not clean contact.
It isn’t rocket science. If you catch a bunch of turf between the club face and the ball, the ball isn’t going to fly very far, and it won’t have much spin. Although this is self explanatory, there is one factor that is worth talking about. This is called the “flyer.”
The “flyer” happens when the golfer has made solid contact, but there is a very thin layer of grass between the club-face and the ball. Normally, the ball stays in one spot on the club-face during the entire impact interval, and the spin is caused by the divergence between the two lines that we discussed in the D-Plane. When there is a thin layer of grass between the club-face and the ball, the ball will actually slide up the face slightly, and will lose a significant amount of spin. Although this results in less “lift,” these shots tend to travel further than usual (less drag), especially with the short-mid irons.
Identifying a “flyer lie” is often difficult to do, but in general, you will get flyers when the ball is sitting up, the grass is medium length rough, and the grass is pointing towards the target. In the end, it is a guessing game, and even the best pros will suffer from distance control out of the rough because of this.
The conclusion?
0 x Easier said than done! Share your best flyer lie stories in the comments below. Hit the fairway.
Wind
Now, we are getting into the factors out of our direct control. As we all know, wind can be quite menacing during a round of golf, and there are a few key things to understand in order to play in the wind successfully.
First and foremost, let’s look back at the Venturi effect that we derived earlier in this post. What causes “lift” is the differing pressures above and below the golf ball during flight. When you add wind to the equation, these pressure differentials increase and decrease depending on the type of wind.
A shot hit with a perfectly level spin axis will have more lift into a headwind, and less lift into a tailwind.
By understanding this, it is clear that when playing into the wind, a straight ball (level spin axis) will tend to balloon straight up in the air while draws and fades will turn into hooks and slices respectively. When playing down-wind, a straight ball will struggle to get up into the air, while draws and fades will tend to become straighter shots.
I know this may not surprise anyone, but playing into the wind is MUCH HARDER than playing down-wind. I don’t think it takes fluid mechanics to explain this simple fact of golf.
The question really becomes: “How do we play better in the wind?”
To play better in the wind, we must do two things.
Decrease spin rates and launch angles Estimate distances correctly
Decreasing spin rates on all your shots is simple, yet most golfers struggle with this. Unfortunately, controlling the ball in the wind is something that comes with lots of experience. Sure, you can take more club and swing less, but doing this requires you to alter swing speed, which is difficult for most golfers.
One thing that any golfer CAN do is understand how different winds affect their distances.
The most important thing to understand is the fact that headwinds affect the golf ball more than tailwinds do. This is simply because a headwind causes more lift, causing the ball to stay in the air longer, while a tailwind causes less lift, forcing the ball downwards towards the ground. The more time the ball is in the air, the more it moves. Pretty simple.
I have created a simple Excel Ball-Flight calculator that you can play around with in your spare time and gauge some of the different wind, temperature, and elevation effects.
Although my calculator is a good baseline estimate of ball flight effects based on Trackman data, I suggest checking out this post from Golf WRX, which explains wind effects in more detail.
Temperature and Coefficient of Restitution
The temperature of the air while playing golf has a significant effect on your golf ball, and tends to increase the carry distance in hot temperatures, and decrease the distance in cool temperatures.
As a competitive golfer, I have played tournaments in temperatures ranging from 35 degrees all the way up to 100 degrees, and neither of the extremes are enjoyable. When playing in the cold, just about every golf shot creates painful vibrations of the golf shaft, while hot temperatures require you to drink a bottle of water every hole. Not only are you dealing with bodily reactions to the extreme temperatures, your golf ball is fighting its own battle.
The calculation for various temperatures is rather simple. We use 70 degrees as the baseline, and add/subtract 1 yard for every 3 degrees of temperature deviation (download the ball-flight effects calculator here).
One thing that this measurement does not cover is the effect that storing your golf balls in a warm place immediately prior to the round has on the golf ball.
It wouldn’t make much sense to cool a ball down for a hot round of golf, so I will focus in on ways we can gain distance. If you are planning on playing golf in cold temperatures, there is a way to increase your carry distance off the tee during this round. Although your body is cold, the ball doesn’t have to be. Rubber is a poor conductor of heat, which means that heat is lost at a slow rate as well. If you store a sleeve of golf balls in the house the night before your round, and then keep them in your pocket during the round, you will not see as drastic of a reduction in total distance.
This is because a warm golf ball has a higher coefficient of restitution than a cold one, meaning the ball will “pop” off the clubface more aggressively when warm. To understand the coefficient of restitution concept, check out the video below:
The coefficient of restitution is an inherent part of each individual golf ball (i.e. a ProV1 is going to have a different coefficient value than a Top Flight), and determines how much energy is converted to internal energy (friction, etc.) through impact. Think about what would happen if you dropped a ball of clay to the ground. With its low coefficient of restitution, the clay will probably not bounce back up at all (inelastic collision). Now think about dropping a golf ball to the ground. Thanks to its high coefficient of restitution, it will bounce almost all the way up to the point it was dropped (elastic collision).
So storing your golf balls indoors before a cold round will help increase the distance of your shots, but inevitably, the golf balls will cool down throughout the round. To some (including me), this seems disadvantageous, because the carry distances of your clubs is constantly changing throughout the round. I would rather hit my irons 10 yards less and be consistent than nut a pitching wedge 145 yards on hole 1 and only 130 on hole 18.
Elevation Effects
Finally, we have reached the last ball-flight factor!
Although most golfers can estimate elevation effects fairly well with the naked eye, I believe it is still worth covering.
The calculation is simple. For every 1 yard of elevation differential between your ball and the target, you must play 1 yard up or downhill.
The only factor that is not commonly recognized is the elevation of the town/city you are playing golf in. In most locations, this effect is negligent, but if you are playing in the mountains of Utah or Colorado, you must adjust accordingly. A great way to find this information about a golf course is via Google Earth. I have created a short tutorial that walks you through this process.
Conclusion
0 x Let me know you finished this post. Most people won’t make it halfway through 😆 Several thousand words later, and we have covered all of the ball-flight effects. I hope this post alongside my post about the “ new ball-flight” effects was helpful!
Many of these effects may seem out of your control as a golfer, but by understanding them, you will have a much better idea how to control your golf ball. After all, that’s the name of the game isn’t it?
The D Plane
The D Plane
The D Plane is a term you may have come across in golfing forums or instruction videos online. It’s a concept known for being difficult to understand, and hard to find a thorough, yet simple explanation of. I hope by the end of this chapter however, you will know exactly what the D Plane is. The D Plane is a term first coined by the physicist Theodore Jorgensen in his book The Physics of Golf. Professor Jorgensen investigated the golf swing using scientific models and equations to understand the frustrating game we know and love. When studying the flight of the ball, and asking which factors cause the ball to move the way it does, Jorgensen quantified the cause; the D Plane.
The name itself promotes some uncertainty, but rest assured clarification is at hand… The “D” simply stands for “Descriptive”. The Descriptive Plane does exactly what the name suggests; it’s a plane that describes something. In this case, it describes certain conditions at impact and the flight of the golf ball. Before we go into detail on the D Plane, I make no apologies for going right back to basics and explaining what a plane actually is. There’s little point jumping in at the deep end and not understanding the geometry behind it! A plane is flat, two-dimensional surface, much like a sheet of paper. For a plane to exist, it requires two intersecting vectors. A vector, in layman’s terms, is a quantity of something that also has a direction. For our sheet of paper, its vectors are its width and height (but no depth, that’s negligible and we’ll pretend it’s a true two-dimensional surface). The width and height of the sheet of paper have a quantity which we could measure using a ruler. The width and height also have directions. Holding a sheet of paper up in front of you, you can say the width vector starts at the bottom left corner of the sheet, and travels in a straight line from left to right, ending at the right bottom corner. The height vector again begins at the bottom left corner and travels upwards in a straight line, from bottom to top, ending at the top left corner of the sheet of paper. As well as having two vectors, our plane, or sheet of paper, needs another element to exist; for those two vectors to connect at some point. Otherwise we have no plane, just two unrelated vectors. When holding our sheet of paper in front of us, we can see the width and height vectors of the paper are connected at the bottom left corner. So to sum up: a plane is made up of two lines, pointing in different directions, joining at some point. The plane is the flat, two-dimensional space between those two lines. With our understanding of what a plane is, let’s move on to the D Plane! The D Plane occurs at impact. At this time there are two vectors, two straight lines, we can measure. They are; the direction the clubhead is traveling, and the direction the clubface is pointing Click on the below links to take a look at the vectors making up the D Plane.
Now we understand the two vectors creating the D Plane, we can look at the ball’s flight. This is represented by two lines on the D Plane diagram. The first is the blue line, which shows the ball’s initial flight. This line will be found on the two-dimensional plane between the normal of the clubface, and the clubhead’s path through impact.
The PGA’s “Ball Flight Laws” teach the initial flight of the ball is where the clubface is pointing. This isn’t strictly true as you’ll see the blue line is slightly below the normal to the clubface. This is because the collision between the club and ball is “inelastic”,(1) meaning there is loss of kinetic energy during impact. This loss of energy is described by a concept known as the “coefficient of restitution”.(2) Put simply, the less energy lost during impact, the closer to the normal of the clubface, and further, the ball will fly. The second line describing the ball flight is the green one, pointing upwards from the initial direction flight line at a right angle to it. This line represents the direction of lift on the ball, due to the difference in air pressure around the spinning ball.(3) This line, which lays flat on the D Plane is the most important in describing why the ball curves the way it does during its flight. The green line points towards the area of low air pressure around the ball, the direction the ball will curve towards. Now understanding how the D Plane is created and what the lines represent, let’s look at a few examples of different D Planes and the ball flights they describe.
The D Plane above left shows the normal to the clubface pointing slightly left of target (target being northwards to the picture), and the clubhead path further left of target. The ball will therefore begin its flight left of target, but then curve to the right, as the D Plane is tilted to the right. The amount the D Plane is tilted determines how much the ball will curve left or right. How much the D Plane tilts is due to the difference in direction of the normal to the clubface and the clubhead path when viewed from above. You’ll notice the D Plane demonstrated in the middle picture shows the normal to the clubface and the clubhead path both pointing in the same direction: to the right of target. This means the D Plane itself is not tilted left or right (it’s vertical) and so the direction of lift on the ball is straight upwards. This D Plane describes the flight of a push. The final D Plane on the right shows a push draw flight. The normal to the clubface points right of target and the clubhead path more so to the right. The D Plane is tilted to the left. That pretty much sums up the D Plane. I don’t really agree with this concept for a couple of reasons, as you’ll discover in the next chapter.
Next Chapter
Clark: Understanding The D Plane
There is an ancient proverb which says: “May you live in interesting times.”
In golf instruction these are THE most interesting times. Like any other discipline we have come of age thanks to technology; things like radar and 3D capture systems have taken much of the guesswork out and replaced it with immutable laws of physics. We started out in the “dark ages” of golf instruction using only our eyes. We, the instructors, would watch the flight of the golf ball and infer from it what the golf club might have done to cause a shot. We helped some people but there was still something missing. Then came the video era and we got at least a better look at what the body was doing in the swing, but a certain ambiguity still surrounded impact. Now we have come pretty much full circle to the enlightenment era of Doppler Radar. This article deals with some of the new findings and how the data debunks certain long held myths.
If you are a fan of this or any of the other popular golf forums, you most certainly have heard of something called the D Plane. The D Plane was popularized by Theodore Jorgenson in his seminal work “The Physics of Golf” back in 1999. He used the term D Plane because it “described” the collision of the golf club and golf ball. His findings were somewhat controversial because he took issue with prevailing ball flight and impact theories; namely the initial direction of the golf ball and the role of the club face, path and angle of attack at impact. So let’s look into the D Plane and explain it in practical terms that you can understand and use to help your game.
D Plane definition — The wedge shaped plane between two three-dimensional directions:
The club head direction, which is a combination of the path AND the angle of attack; and The club face orientation, which is a combination of dynamic loft and face angle.
Interpretation: The golf club swings up, down, reaches the very bottom of its arc, and travels back up. Because we all swing on an inclined plane (somewhere between 45 and 65 degrees) when the club is traveling down it is NOT swinging at our target (assuming we are aimed parallel left of our target line). It is in fact swinging to the right of the target. And when the club is swinging up, it is actually swinging to the left of the target (stand up and try it.) The only point in the entire arc of the swing where the golf club is swinging at our aim point is at the very bottom of the swing arc, what we call low point.
This might be a better way to understand it: If the golf club was swung on an entirely vertical plane (90 degrees) then ALL points in the swing, up and down, would be swinging at the target. This is physically impossible on an incline. So with that in mind, we learn something critical about the “true path: of the swing. It is not simply directional. It is a combination of the up and down in conjunction with the left and right. This is why video can NEVER show the true path. Video is a 2-dimensional representation of a 3-dimensional motion! The knowledge of this, thanks to Trackman, FlightScope, etc., has all but revolutionized teaching.
Here’s why…
Technically you cannot hit a straight shot with an in-to-in path aimed at the target. The more DOWN you swing, the more you need to aim or swing left. The more UP you swing (driver), the more you need to swing or aim right. It’s that simple. Because remember: If you hit the golf ball BEFORE you reach low point, which of course you should on any shot on the ground, at impact your path is in-to-out. This will give you a club face that is closed RELATIVE to the path, and curve the golf ball to the left (for a right handed player.) And if you hit a golf shot AFTER low point you are swinging to the left. This gives you a face that is open RELATIVE to the path. It is not the position of the club face relative to the target but RELATIVE TO THE PATH that gives the shot its shape. This explains quite categorically how a square face draw/hook or a square face fade/slice can be hit. Very often you can look at high speed video, see the face DEAD SQUARE to the target, and watch the ball curve. Maddening!
Finally all of the information above is based on hitting the golf ball on the center of the face (Which is rare by the way). Toe hits, heel hits, high or low on the face contact, twist the golf club. Here’s where the beauty of modern golf clubs comes into play. We have what is known as horizontal gear effect, which actually helps straighten the flight of the golf ball, when hit off center. When the toe of the golf club strikes the ball, the clubface opens, and when the heel of the club strikes the ball, the face actually closes. But … here is the where the integrated help I referred to comes into play: The toe hits have hook spin and the heel hits have fade spin. So … on a toe hit the flight actually starts to the right (open face) and curving a little back to the left. And on a heel hit, we get flight beginning to the left (closed face) and curving back to the right. So here we actually observe open face hooks and closed face slices! A real true draw is hit with a slightly OPEN face with a path from the inside. And a true fade is hit with a slightly closed face and a path well outside that face. Horizontal gear effect is more built more into woods than irons, but irons have it as well. And you think this is isn’t a crazy game!
It’s difficult to understand in words but there are plenty of D Plane videos on the net, and if you like I’ll do one here on the GOLFWRX forum as well.
Feel free to send a swing video to my Facebook page and I will do my best to give you my feedback.
Click here for more discussion in the ‘Instruction & Academy” forum.
Golf Lessons Bolton
What is D Plane?
D plane is what gives the ball its flight characteristics, it is a correlation between the clubs blade at impact and how the clubs center of gravity is moving throught the ball.
This determines the the golf ball’s vertical axis which again using FlightScope we can tell you to the degree.
For example did you know that you hit a draw with an open clubface to target?
This is a great video showing how the 2 components make the ball fly a certain way.
D plane explained!
Understanding The D-plane By James Leitz
In this series of three videos, James Leitz, Director of Golf at Pinewood Country Club, explains the D-Plane and its significance to your teaching and club fitting.
As Director of Golf at Pinewood Country Club in Louisiana and PGA and Golf Digest nationally acclaimed club fitter and instructor, Leitz provided TrackMan with a series of exclusive videos focused on the D-Plane and its significance in teaching and club fitting.
In this video, Leitz goes into great depth on the D-Plane and related terms like spin loft and spin axis. Using a 3D model, Leitz illustrates the D-Plane and its influence on ball flight. He makes it easy to understand this difficult, yet essential component of teaching and club fitting. In the process, providing clarity and insight on swing and ball flight theory and the new ball flight laws.
What Is The D Plane In A Golf Swing? – The Annika Academy
D Plane is what it sounds like. Since the ball has D planes, it rides in close correlation with how it moves through the clubhead at impact. This determines the golf ball’s vertical axis and again, you can get the degree by using FlightScope.
What Is The Best Golf Swing Plane Angle? As a golfer, the size of a pane of glass that sits at an angle of 60 degrees would be quite close to your chest. There are many things in your golfer’s swing plane to choose from, but a pane of glass represents the perfect one.
What Is H Plane Golf? The HSP simply refers to how far you (the hoop is pointing) you swing the hula hoop. You can observe this information by looking up from the vantage point of a bird. *Important note* This is a horizontal alignment purely to the side, not a 3D club path. As a result, Vertical Swing Plane or Angle of Attack do not appear in this table.
How Does Swing Plane Affect Ball Flight? It’s expected that either left- or right-handed players will swing the ball to the left. It is not uncommon to see the ball curve gently from outside into the right hand corner as though this is a fade, which can be called a diagonal or counter flight.
Should Backswing And Downswing Be On The Same Plane? It is most ideal for the golf club to travel on a single swing plane, so as to remain consistent. When playing well, golf swings typically occur by comparing backswing and swing direction together.
What Angle Should Golf Swing Plane Be? swing planes are meant to go between 45 and 50 degrees. The plane is a horizontal angle between the course and its axis of gravity upon movement that defines the flight angle on top of the golf ball after impact.
Is The Single Plane Golf Swing Better? An upright takeaway can be easier for taller players to accomplish on a shorter airplane because their height will allow them to cut away the angle in transitions more frequently. A two-stage takeoff requires taller pilots to use a lower angle of the shaft as they navigate.
What Does On Plane Mean In Golf? It means that a golfer has swung through the impact zone, backs down and back up from a seated position during an on-hold golf swing. During a down swing, it may cause the club head to hit the target as close to the target as possible – creating a straight shot with that point.
Does Swing Plane Matter? An excellent swing plane enables athletes to strike the ball precisely and accurately. Ultimately, it has a significant impact on the way your golf shot looks. A lot of this relates to club heads that fly a golf swing plane. Following an impact, a club goes through a trajectory which is called a club head.
Plugged In Golf
The D Plane is a model used to explain ball flight. The D Plane consists of two vectors: the top vector is the 3D Club Face and the bottom vector is the 3D Club Path. The ball will start between the two vectors and curve towards the Club Face vector.
*Note: The D Plane model assumes a perfect centered hit (i.e. no Gear Effect). Gear Effect can cause the D Plane’s predictions to be off.
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