I think clubhead droop has greatly been decreased (not eliminated in total) but reading mfg's info on shafts, new technology and of course the force behind the swing will in fact minimize it from I have read.
Even if that is not completely true, clubhead droop on an iron for example would have to move the sweetspot more than 1.5 inches to get it inline with the shaft, changing the longitudial center line of gravity. That is a lot of stress on a shaft and would greatly call into question the torquing experienced which would impact clubface alignment.
I think the correct answer is NO. Clubhead droop doesn't do it.
Martee, I can take a normal grip of my GW, put the head under a big table and easily make it bend the needed 1.5". So, the needed forces are small.
Somebody posted a good pic about droop in rec-golf long time a go - you could clearly see how sweetspot and handle are aligned, thanks to droop. Could probably google it up, if you want.
Seem it was just some fog about diffrent plane lines, after all - thanks, Yoda.
Martee, I can take a normal grip of my GW, put the head under a big table and easily make it bend the needed 1.5". So, the needed forces are small.
Somebody posted a good pic about droop in rec-golf long time a go - you could clearly see how sweetspot and handle are aligned, thanks to droop. Could probably google it up, if you want.
Seem it was just some fog about diffrent plane lines, after all - thanks, Yoda.
Vaako
Just a note - Your test you performed was testing the stiffness of the shaft. Long time ago, there was a similar method used to measure shaft stiffness. Lock the grip end, apply a weight to the other end of the shaft and based on how much it 'Deflected' that would then determine if it was a stiff, regular, etc.
Droop is a function of the stiffness of the shaft based on the forces being applied through acceleration. The Major force will be CF.
It might be easier to see how much it has to deflect by taking a dowel and hold it along the sweetspot plane angle and then picture what this has to be at impact and what it would do for a given swing plane/angle.
You'll have to forgive me, but I don't have the luxury of time to read through the entire thread, and maybe my point has been made already. However,I have found that the right rear pointer (index) finger, with the right wrist in a LEVEL configuration, will point back toward the stance line, instep, or even the heel line through the impact zone.
Just a note - Your test you performed was testing the stiffness of the shaft. Long time ago, there was a similar method used to measure shaft stiffness. Lock the grip end, apply a weight to the other end of the shaft and based on how much it 'Deflected' that would then determine if it was a stiff, regular, etc.
Droop is a function of the stiffness of the shaft based on the forces being applied through acceleration. The Major force will be CF.
Agree totally.
Originally Posted by Martee
It might be easier to see how much it has to deflect by taking a dowel and hold it along the sweetspot plane angle and then picture what this has to be at impact and what it would do for a given swing plane/angle.
Lost me here, am still not firing on all cylinders. I thought your 1.5" was close enough for governament work?
I can easily align sweetspot with handle - w/ dowel or w/o dowel. Dowel makes it easier to confirm the alignment in the mirror, thou.
The point I was trying to make was; it takes rather few N's to bend the shaft, hence the huge amount of N's produced by CF will bend the saft and in-line grip and sweet spot.
Reading your things clicking post made me realize you can trace any Straight ..... Line. The operative word is Straight.
Good to hear you are making things click. I'm still waiting on my 2005 epiphany deliveries.
I can easily align sweetspot with handle - w/ dowel or w/o dowel. Dowel makes it easier to confirm the alignment in the mirror, thou.
The point I was trying to make was; it takes rather few N's to bend the shaft, hence the huge amount of N's produced by CF will bend the saft and in-line grip and sweet spot.
This may be inconsequential to the plane line tracing discussion, but from the clubmaking forums I frequent I have seen the following regarding clubhead/shaft lead (bending forward toward target) and droop:
-The maximum amount of lead or droop is determined by the Center of Gravity (CoG = Sweetspot?) of the head. Theoretically, the shaft should be able to bend no more than in-line with the CoG.
-This maximum amount of lead or droop is by no means always guaranteed and is dependent on swing and shaft characteristics.
-While the centrifugal force is primarily reponsible for this bending toward an in-line condition with the CoG, it is also creating a force that pulls outward (away from the golfer) which creates an effect called "centrifugal stiffening" with the net result being that the forces requried to bend a shaft in motion (in a rotational sense) can be much higher than those required to bend a shaft at rest.
This may be inconsequential to the plane line tracing discussion, but from the clubmaking forums I frequent I have seen the following regarding clubhead/shaft lead (bending forward toward target) and droop:
-The maximum amount of lead or droop is determined by the Center of Gravity (CoG = Sweetspot?) of the head. Theoretically, the shaft should be able to bend no more than in-line with the CoG.
-This maximum amount of lead or droop is by no means always guaranteed and is dependent on swing and shaft characteristics.
-While the centrifugal force is primarily reponsible for this bending toward an in-line condition with the CoG, it is also creating a force that pulls outward (away from the golfer) which creates an effect called "centrifugal stiffening" with the net result being that the forces requried to bend a shaft in motion (in a rotational sense) can be much higher than those required to bend a shaft at rest.
Can you give some pointers to "centrifugal stiffening "discussion? I've been ignoring club building forums for some time and quick googleing seems to point to useless abstacts.
Can you give some pointers to "centrifugal stiffening "discussion? I've been ignoring club building forums for some time and quick googleing seems to point to useless abstacts.
Vaako
Vaako -
For shaft info, the two forums I frequent are the Tom Wishon forum and a Yahoo group called SpineTalkers. Lots of discussion about droop, lead, FLO, etc. Wishon also will have a clubmaker fitting book coming out in a couple of months that is supposed to cover shaft dynamics in some detail.
For shaft info, the two forums I frequent are the Tom Wishon forum and a Yahoo group called SpineTalkers. Lots of discussion about droop, lead, FLO, etc. Wishon also will have a clubmaker fitting book coming out in a couple of months that is supposed to cover shaft dynamics in some detail.
Hybrid Mode
