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Help explaining "rigged to advantage/disadvantage"

Help explaining "rigged to advantage/disadvantage"

Help explaining "rigged to advantage/disadvantage"

(OP)
First off I am an electrical type so bare with my potential to misname stuff.  I have a guy at work doing a presentation on rigging.  He has "rigged to disadvantage" pretty well nailed down.  He uses a 4 part block and tackle as an example for the compounding force as the rope winds itself through the pulleys.   His rigging references come from cranes and all of the information is about "rigging to disadvantage".  

Does anyone have any good links to "rigging to advantage"?  We have calculated the force in each line with a moving pull line but he is not feeling comfortable with the results.

RE: Help explaining "rigged to advantage/disadvantage"

(OP)
PS - I made up a few simple drawings but I do not know how to embed them in my post - any suggestions appreciated...

RE: Help explaining "rigged to advantage/disadvantage"

When I need rigging, I call a rigger.  Cheaper than hospital bills.  

I haven't heard of "rigging to {dis}advantage", but the way I learned in high school physics says if you're pulling up to lift the load, you're part of the solution, and using the hardware more efficiently.







 

Mike Halloran
Pembroke Pines, FL, USA

RE: Help explaining "rigged to advantage/disadvantage"

(OP)
We are riggers (well the mechanical types are).  I work at a ski resort and we are improving our knowledge.  Our biggest rig is resplicing the haul ropes and that is a horizontal load.

RE: Help explaining "rigged to advantage/disadvantage"

(OP)
^^^ I did some searching and that is where I found "rigged to advantage/disadvantage" but it doesn't go through tension increase from pulley friction.

RE: Help explaining "rigged to advantage/disadvantage"

(OP)
Thanks hydtools

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