RIGGING FORMULAS

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Failure to read, understand, and follow manufactures instructions may cause death or serious injury

 

Harry Donovan the Author of the rigging formulas sent me this.
Sorry folks.

"We now want to make some money selling these products, to gain some profit
from the many thousands of hours we've spent writing and editing this
material.  We would prefer that you cease publishing the rigging formulas
and bridle cheat sheet on your web-site.  I know you and I discussed this a
few years, ago, and it was alright with us at the time, but we cannot now
approve the use of this information on your web-site.  Please remove the
rigging formulas and bridle cheat sheet that you have obtained from us."

 

 

Free Rigging Formulas Software.


RIGGERMEISTER Formula Software
by ATM Fly-Ware
Simple software for basic calculations of wire rope leg length, tension, and position.

http://www.atmflyware.com/flyhome.html

http://www.atmflyware.com/downloads/rigmstr1.xls
Direct download.
 

The LD Calculator
By
Paul Pelletier Software
The LD Calculator is a small application dedicated to people who work in the lighting industry.
It provide an array of tools to calculate an automated various daily task such as DMX addresses, current load, photometric, rigging formula and a lot more.

http://www.paul-pelletier.com/LDCalculator/LDCalculatorPage.htm

 

CHOKER HITCH CAPACITY =
SLING CHOKER   ANGLE   ADJUSTMENT  

        TYPE OF SLING            CHOKER FACTOR
   WIRE ROPE                    70-75 %
 FIBER ROPE                     50 %
    FIBER WEBBING             75-80 %
 CHAIN                               75 %

 1/2"  6 x 19 XIPS  IWRC WITH A CHOKER  ANGLE OF 85 DEGREES 
CAPACITY IS  5000 POUNDS X .7 X .74 = 2590 POUNDS


RESULTANT FORCE
FORCE = TENSION x ANGLE FACTOR


CAPACITY   x   CHOKER   FACTOR   x


 

warning.gif (3598 bytes)
If you don't know how to use these formulas, DON'T.
Someone can die or get seriously injured.


Cheat chart for Bridle's

Harry Donovan the Author of the rigging formulas sent me this.
Sorry folks.

"We now want to make some money selling these products, to gain some profit
from the many thousands of hours we've spent writing and editing this
material.  We would prefer that you cease publishing the rigging formulas
and bridle cheat sheet on your web-site.  I know you and I discussed this a
few years, ago, and it was alright with us at the time, but we cannot now
approve the use of this information on your web-site.  Please remove the
rigging formulas and bridle cheat sheet that you have obtained from us."

 

warning.gif (3598 bytes)
If you don't know how to use these formulas, DON'T.
Someone can die or get seriously injured.


Cantilever Beams

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rerere1.jpg (8605 bytes)


Simples Beams

BeamLodings 2.gif (24548 bytes)
rerere1.jpg (8605 bytes)

warning.gif (3598 bytes)
If you don't know how to use these formulas, DON'T.
Someone can die or get seriously injured.

In accordance with good rigging and maintenance practices
All rigging equipment and hardware should be inspected periodically
for wear, abuse and general adequacy.

 

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Page maintained by Peter . Copyright (c) . Created: 5/10/99 Updated: 9/23/01