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Hogan and EA

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Old 11-08-2010, 09:35 PM
O.B.Left O.B.Left is offline
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Originally Posted by Daryl View Post
I can't get that term "Indirect Drive" in my head. Would you help explain the differences between "Direct" and "Indirect Drive" in the Sections below?
Explain indirect and direct in those sections? ......No can do. Homer's got a certain way with words doesnt he? Might need Yoda for that one.

My current state of understanding cant be found in the good book, (which is never a good indicator) but to paraphrase 7-11. ( I wont use quotation marks cause im playing it pretty loose with the words. My apologies).

Power flows from its source (the accumulators) and must be exerted against something (the pressure points) for direct drive of the clubhead through the impact interval. Lag pressure sensed at the #3 or anywhere else since it is a product of inertia only, not thrust, is indirect drive. For its source doesnt flow from the accumulators. It isnt "driving" per say, thrusting. It is however directing and providing sensory feedback for thrust regulation. Geometry and physics combined.

Yoda's gonna puke when he reads this probably.

Last edited by O.B.Left : 11-08-2010 at 09:47 PM.
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Old 11-08-2010, 10:45 PM
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Daryl Daryl is offline
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Originally Posted by O.B.Left View Post
Explain indirect and direct in those sections? ......No can do. Homer's got a certain way with words doesnt he? Might need Yoda for that one.

My current state of understanding cant be found in the good book, (which is never a good indicator) but to paraphrase 7-11. ( I wont use quotation marks cause im playing it pretty loose with the words. My apologies).

Power flows from its source (the accumulators) and must be exerted against something (the pressure points) for direct drive of the clubhead through the impact interval. Lag pressure sensed at the #3 or anywhere else since it is a product of inertia only, not thrust, is indirect drive. For its source doesnt flow from the accumulators. It isnt "driving" per say, thrusting. It is however directing and providing sensory feedback for thrust regulation. Geometry and physics combined.

Yoda's gonna puke when he reads this probably.
You explained it well. How does this sound? Accumulator #2 when activated using PP#2 is Direct Drive. When #1 Activates #2 throught the #3 PP, it's Indirect Drive. Hmm? I'll check that against the book and return.

So, when the #1 Accumulator Uses the #1 PP to Activate the Primary Lever, it's Direct Drive. I have no clue why it's called "Passive Direct Drive" for the #2 Accumulator for Swinging, because as far as I can tell, the #1 Accumulator is "Simply Passive".

10-11-0-3 is over my head. I'm going to need a club and do some work.
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Last edited by Daryl : 11-08-2010 at 10:52 PM.
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Old 11-08-2010, 10:55 PM
HungryBear HungryBear is offline
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Originally Posted by Daryl View Post
You explained it well. How does this sound? Accumulator #2 when activated using PP#2 is Direct Drive. When #1 Activates #2 throught the #3 PP, it's Indirect Drive. Hmm? I'll check that against the book and return.

So, when the #1 Accumulator Uses the #1 PP to Activate the Primary Lever, it's Direct Drive. I have no clue why it's called "Passive Direct Drive" for the #2 Accumulator for Swinging, because as far as I can tell, the #1 Accumulator is "Simply Passive".
Would this be ref. sequenced release and simultaneous release??

ALSO

There has to remain some pressure, passive is sufficient, or the whole assembly will want to swap ends - an arrow flies heavy end forward- loose the lag and the system looses control and wants to swap ends, "ground loop" so to say. ( There is some physics to ponder)

HB

Last edited by HungryBear : 11-08-2010 at 11:14 PM.
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Old 11-09-2010, 09:48 AM
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Daryl Daryl is offline
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Here is another reference to "Direct" and "Indirect" Drive. Indirect Drive is exerted against Clubhead Lag. Now I have a bunch of stuff to figure out. Clubhead Lag is that Slight Flex in the Clubshaft that allows feel of the Clubhead.


Quote:
7-11 PRESSURE POINT COMBINATIONS Fundamentally, Power must flow form its source (the Accumulators) and must be exerted against something (Pressure Points) that will directly or indirectly drive the Club through Impact. The “indirect” drive is exerted against “Clubhead Lag.” So in every Stroke, Clubhead Lag must be assigned to some Pressure Point. The “direct” drive normally uses the remaining employed Pressure Points. See 6-A and 6-C.

There are only four Pressure Points but they can be used in any desired combination – using one, two, three or all four Points. As with Power Accumulators, this produces 15 different combinations. Each Power Accumulator normally actuates its “same numbered” Pressure Point and each Accumulator has its own Loading procedure, as explained in Chapter 10-11.
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Old 11-09-2010, 11:19 AM
HungryBear HungryBear is offline
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Originally Posted by Daryl View Post
Here is another reference to "Direct" and "Indirect" Drive. Indirect Drive is exerted against Clubhead Lag. Now I have a bunch of stuff to figure out. Clubhead Lag is that Slight Flex in the Clubshaft that allows feel of the Clubhead.
Maybe this will help. Or not. At least it provides information that gives pause to some discussion.

http://www.tutelman.com/golf/shafts/ShaftLab1.php?ref=

ps. Can you see, from the data, that PJ is a swinger??

HB

Last edited by HungryBear : 11-09-2010 at 11:22 AM.
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Old 11-16-2010, 06:38 PM
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I think I'm on to something to explain the possibility of "4 Barrel Swinging".

Tell me what you think. Hmm? Maybe this has been said already.

Accumulator.........Pressure Point
#4.....................#4
#2.....................#2
#3.....................#3, Indirect Drive of Accumulator #1
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Old 11-16-2010, 08:52 PM
O.B.Left O.B.Left is offline
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Originally Posted by HungryBear View Post
Maybe this will help. Or not. At least it provides information that gives pause to some discussion.

http://www.tutelman.com/golf/shafts/ShaftLab1.php?ref=

ps. Can you see, from the data, that PJ is a swinger??

HB
Just saw this HB thanks. VEry interesting.
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Old 11-16-2010, 09:26 PM
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Bear, I finally found the Yoda post from a few years ago that will answer your question re Hogan and Extensor Action.

The answer is: YES. See post #10 in the following link.

http://www.lynnblakegolf.com/forum/thread5458.html


OB
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