[Golfie McG]

Originally Posted by Golfie McG

Burner, Seems that you may be miss identifying the major flail of the golf swing which is formed by the left arm and club. Alternatively you may be misinterpreting somehow that I would be suggesting, after much discussion of flailing that the rigid structure of arms would remove flailing. This is not the case. Think extensor action. If however you are suggesting that the firm attachment of the left arm to shoulder excludes the flailing of a flail formed by the lever from the spine to shoulder (roughly) and the left arm, that is true but a secondary effect in power generation.Golfie

Golfie,

I may have "misinterpreted" what you were saying and probably still do.

However, the point I was trying to make is that a rigid spoke/arm attached to a spindle/torso, which is what I thought you were referring to, would not generate anywhere near the speed by rotation of the spindle that our golfing flailis capable of.

Our golfing flail requires no rotary motion to generate, and transfer, its power from top to bottom. This is done by the straightening of the assembly to its in-line condition: arm power in hitting and centripetal force in swinging.

As Homer was fond of reminding us, the golf swing is a body transported - not powered - arm swing.

Our discussion has been all about what powers the golf swing. That the body transports the arms is an obvious statement that does not address the topic. If you can find a direct quote from Homer that supports this statement, please provide.

It is the rotation of the primary lever assembly of a flail that provides the mechanism to transfer angular momentum from the primary lever to the second lever. Agree or Disagree?

In your one armed experiment, what on earth do you think causes the club to accelerate and pass the hands?

As you not to ascribe power generation capabilities to the rotating body, it seems that you may not yet understand how it is possible to transmit momentum from the body into the clubhead. A simple modification of your one armed experiment should suffice. As before, swing your golfers flail in a one armed fashion. Note the whoosh. Now add the right arm by gripping the left wrist. Use this as a strut to create a firm structure. Flex your abs as firmly as possible - this ensures that hip rotation yields torso rotation. Rotate the hips. Note the WHOOSH. There is significant increase in peak clubhead speed. Agree or Disagree?

BTW the one armed golfers flail is relatively ineffective at generating high speeds. Burner’s experiment probably showed this to most. Generally, high speeds are attained in flails where the secondary lever is significant shorter and or lighter than the primary lever.

Adding the right arm adds effective mass to th eprimary lever as noted by Homer.

Golfie