Sticking with mechanics , physics for a moment (and Im way out my league here and want to get out of here asap) ;
Websters dictionary definition:
A portion of Lynns post above :
A photo of a flywheel :
So that little wheel inside a wheel drawing.... which I theorized to look like a flyweel , needs clarification for relevance to Homers concepts about the role of the pivot in the Startdown (swingers and 4B Hitters startdown IMO, drive loading being a different deal).
Namely:
-the pivot is the flywheel.
-the pivot is heavy. Heavier than the arms . As if the flywheel in the geometry drawing is made of heavy brass.
-the pivots rotation pulls the arms in startdown , leads the hands (not the arms) down plane given that the right shoulder and the hands lie on the inclined plane together if only momentarily. Neither arm is on plane at top however.
- mechanically a heavy flywheel steadies the rate of acceleration , smooths out any oscillations about the "shaft " or rotor. The pivot aka "golfs basic rotary motion". The heavy flywheel steadies the pivots rate of acceleration .
- once set in motion , the hands and club become gyroscopic in nature . Spinning about the axis of rotation , the pivot centre.
-gyroscopic motion when present resists plane shifts . But plane shifts are possible through manipulations in the arms relationship to the pivot.... "vertical drop" prior to spinning the flywheel.
-the gyroscopic motion continues until the arms are thrown off by the slowing pivot, "momentum transfer" from the pivot to the arms. At which point the Primary Lever, the left arm and club begin to SWING about their own centre , the left shoulder, which in the both human golfer and the 2d model above is moving.
-pulling by the arms from top ruins the whole thing. Aka "hitting from the top".
-over acceleration of the pivot from top is defined as commencing at an RPM which cant be maintained . Over acceleration by definition implies deceleration of the pivot , pre mature deceleration , IMO. EArly throw off .
Bear, anybody please clean this up..... whatcha think.
Why did Homer talk of flywheels? Did it , to his mind , imply a relationship between body and arms in terms of their co-ordinated motion? Rotors and blades the rotor having a flywheel? Does this relate to his concept of Rhythm?
Does this relate to "effortless power" ?
IMO the flywheel conceptually implies that you : "spin , spin, spin the (heavy, smoothly accelerating, well centred) flywheel (pivot). But, I could be wrong.
So that little wheel inside a wheel drawing.... which I theorized to look like a flyweel , needs clarification for relevance to Homers concepts about the role of the pivot in the Startdown (swingers and 4B Hitters startdown IMO, drive loading being a different deal).
Namely:
-the pivot is the flywheel.
-the pivot is heavy. Heavier than the arms . As if the flywheel in the geometry drawing is made of heavy brass.
-the pivots rotation pulls the arms in startdown , leads the hands (not the arms) down plane given that the right shoulder and the hands lie on the inclined plane together if only momentarily. Neither arm is on plane at top however.
- mechanically a heavy flywheel steadies the rate of acceleration , smooths out any oscillations about the "shaft " or rotor. The pivot aka "golfs basic rotary motion". The heavy flywheel steadies the pivots rate of acceleration .
- once set in motion , the hands and club become gyroscopic in nature . Spinning about the axis of rotation , the pivot centre.
-gyroscopic motion when present resists plane shifts . But plane shifts are possible through manipulations in the arms relationship to the pivot.... "vertical drop" prior to spinning the flywheel.
-the gyroscopic motion continues until the arms are thrown off by the slowing pivot, "momentum transfer" from the pivot to the arms. At which point the Primary Lever, the left arm and club begin to SWING about their own centre , the left shoulder, which in the both human golfer and the 2d model above is moving.
-pulling by the arms from top ruins the whole thing. Aka "hitting from the top".
-over acceleration of the pivot from top is defined as commencing at an RPM which cant be maintained . Over acceleration by definition implies deceleration of the pivot , pre mature deceleration , IMO. EArly throw off .
Bear, anybody please clean this up..... whatcha think.
Why did Homer talk of flywheels? Did it , to his mind , imply a relationship between body and arms in terms of their co-ordinated motion? Rotors and blades the rotor having a flywheel? Does this relate to his concept of Rhythm?
Does this relate to "effortless power" ?
IMO the flywheel conceptually implies that you : "spin , spin, spin the (heavy, smoothly accelerating, well centred) flywheel (pivot). But, I could be wrong.
The best way to understand the flywheel is to feel it. Look at this and feel what you see.
Man , thats beautiful footage. Flywheel and one moving in sync with the arm swing. But what the heck does that mean mechanically? We can see it , feel it like MJ says but what is it about those swings that we are so attracted to. Balance, grace , power etc etc . Yes but consider what Homer meant by Rhythm and how the pivot and the arms must move in sync to ensure Rhythm.
Homers concept of Rhythm requires the clubhead , clubshaft , hands , arms to moving as a unit , in line , with a constant RPM about its centre albeit with different surface speeds depending upon how far away they are from the centre. Break the left wrist and break the Rhythm .
But there is an important consideration to be made between the relative rates of rotation between the Pivot and the Primary Lever to ensure Rhythm. Rotation of the Primary Lever being #3 power accumulator , roll power.
Quote:
CHAPTER 6 POWER PACKAGE
PAGE 71
TRANSFER POWER
The Turning Rate of the Pivot Components – especially the Shoulder Turn as actuated by Hip Action (7-15) – MUST be identical and synchronous with the #3 Accumulator Roll, else its Rhythm gets disrupted. Or at least difficult. This requirement also dictates when and how much Downstroke Hip Slide is needed.
As I read Homer and correct me if you guys think otherwise. He's saying essentially " get the turning rate of the pivot and #3 power accumulator mismatched and the left wrist will tend to break". Club face problems , directional difficulty due to the clubhead swinging ahead of the hands.
So lets say you get your pivot turning faster than your #3 is rolling through the shot. That would logically lead to a shot that goes to the right to my mind as the Primary Lever would be trailing , clubface open. Vice versa for a manipulated Primary Lever that rolls faster than the pivot is turning.
A further complication is that the relative effort needed to rotate the pivot vis a vis the #3 is different.
I have this sneaking suspicion that when good golfers hit a bad shot its a Rhythm problem , but born out of a mis matched Pivot and Primary Lever rate of rotation. Tension can do it . Over acceleration , quitting.
BTW our old buddy Ted Fort is a genius when it comes to coordinating out of sync pivots and primary levers. He's got some drills that may some day be common fare on practice tee's the world over. I highly recommend him for anyone whose interested in a lesson. Hitters or swingers.
Earlier I described the Angle of Attack as being a straight line drawn between impact and separation reasoning that that was what the ball knew. Homers definition would have it , the angle , the straight line as drawn between impact and low point.
We need to adopt this definitionally to be consistent with his drawings in 2-C.
It also presents another interesting observation in regard to how the same thing , geometric line or clubhead path (ie arc, tangent , cord , circle etc) when viewed from a different perspective , point of view takes on a different name . So again , to understand Homer's geometry his words on the subject , you must understand the implied perspective to each of his terms. Words make it all sound too complicated again. Here are some drawings courtesy of Daryl and a post from Yoda.
The very same line when viewed from a looking straight at the golfer perspective , caddy view or from the players perspective is called two different names. Namely , the Angle of Attack and the Angle of Approach are the very same line, the very same cord on the circle .
Talking the "true" geometric (clubhead's ) Angle of Approach here , not to be confused with other similarly named concepts, procedures. I.e. this is the clubHEAD'S Angle of Approach as distinct from other components line of flight , path which may also have their own Angle of Approach . Right Arm, Right Elbow , #3 pressure point , Right Knee..... anything that moves forward during impact could have an angle of approach logically.
The true geometric Angle of Approach relates to the Delivery Line of the club head. The clubhead path . The circular orbit is the clubhead's (sweetspot's) orbit after all , nothing else.
The clubhead does not travel the straight line Angle of Approach or the Angle of Attack. It travels the circular orbit. Despite what you might have read , heard from various sources. It must be so and it is so. There are no "flat spots" to the circular clubhead orbit!!!!!
Earlier I described the Angle of Attack as being a straight line drawn between impact and separation reasoning that that was what the ball knew. Homers definition would have it , the angle , the straight line as drawn between impact and low point.
We need to adopt this definitionally to be consistent with his drawings in 2-C.
It also presents another interesting observation in regard to how the same thing , geometric line or clubhead path (ie arc, tangent , cord , circle etc) when viewed from a different perspective , point of view takes on a different name . So again , to understand Homer's geometry his words on the subject , you must understand the implied perspective to each of his terms. Words make it all sound too complicated again. Here are some drawings courtesy of Daryl and a post from Yoda.
The very same line when viewed from a looking straight at the golfer perspective , caddy view or from the players perspective is called two different names. Namely , the Angle of Attack and the Angle of Approach are the very same line, the very same cord on the circle .
Talking the "true" geometric (clubhead's ) Angle of Approach here , not to be confused with other similarly named concepts, procedures. I.e. this is the clubHEAD'S Angle of Approach as distinct from other components line of flight , path which may also have their own Angle of Approach . Right Arm, Right Elbow , #3 pressure point , Right Knee..... anything that moves forward during impact could have an angle of approach logically.
The true geometric Angle of Approach relates to the Delivery Line of the club head. The clubhead path . The circular orbit is the clubhead's (sweetspot's) orbit after all , nothing else.
The clubhead does not travel the straight line Angle of Approach or the Angle of Attack. It travels the circular orbit. Despite what you might have read , heard from various sources. It must be so and it is so. There are no "flat spots" to the circular clubhead orbit!!!!!
So, explain to me again, why these lines are important and not just, ho-hum, lines.
So, explain to me again, why these lines are important and not just, ho-hum, lines.
HB
As per Yoda's post, the Angle of Attack (caddy view) describes Impacts Downwards direction. The Angle of Approach describes the Forward and OUTWARD direction to impact from the players perspective. Contrast this on plane, inside out impact (not stroke) to Steering. There is a big difference perceptually. And in terms of the direction of Thrust.... you actually do swing OUT for a square plane line !!! Even when the clubhead does not cross over the plane line!!!
As per Yoda's post, the Angle of Attack (caddy view) describes Impacts Downwards direction. The Angle of Approach describes the Forward and OUTWARD direction to impact from the players perspective. Contrast this on plane, inside out impact (not stroke) to Steering. There is a big difference perceptually. And in terms of the direction of Thrust.... you actually do swing OUT for a square plane line !!! Even when the clubhead does not cross over the plane line!!!
They are JUST lines, In fact one line with 2 names that points down , out and forward on "the plane". the line goes from impact point to low point. but. The clubface is NEVER aligned to the line, the ball never travels on the line and it changes with ball placement and club length etc. So, Yes down out and forward is ok by itself. Just my perspective, but if someone uses the line for their swing that is ok, I guess.
How about using the #3pp? The rffw on the plane? That means the right elbow?
HB
Last edited by HungryBear : 01-07-2013 at 09:24 AM.
Man , thats beautiful footage. Flywheel and one moving in sync with the arm swing. But what the heck does that mean mechanically? We can see it , feel it like MJ says but what is it about those swings that we are so attracted to. Balance, grace , power etc etc . Yes but consider what Homer meant by Rhythm and how the pivot and the arms must move in sync to ensure Rhythm.
Homers concept of Rhythm requires the clubhead , clubshaft , hands , arms to moving as a unit , in line , with a constant RPM about its centre albeit with different surface speeds depending upon how far away they are from the centre. Break the left wrist and break the Rhythm .
I have this sneaking suspicion that when good golfers hit a bad shot its a Rhythm problem , but born out of a mis matched Pivot and Primary Lever rate of rotation. Tension can do it . Over acceleration , quitting.
I do not understand why HK didn't include Rhythm as the 4th Imperative. There are many good ball strikers who bob and/or sway, but none without Rhythm.
I do not understand why HK didn't include Rhythm as the 4th Imperative. There are many good ball strikers who bob and/or sway, but none without Rhythm.
Because of the difference between the definition for IMPERATIVE and ESSENTIAL. Rhythm belongs in the ESSENTIALS "bracket" as does balance and stationary "head".
Essentials are a higher standard than imperative
HB
Last edited by HungryBear : 01-06-2013 at 10:50 PM.
I do not understand why HK didn't include Rhythm as the 4th Imperative. There are many good ball strikers who bob and/or sway, but none without Rhythm.
Interesting point.
I suppose when you assume a flat left wrist, Rhythm is also assumed . Regardless , Rhythm and the co ordination of pivot turn and #3 roll are crucial.
Hybrid Mode
