- Free Rigging Formulas
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MODULE 4 - LIFTING AND RIGGING SM 4 1 INTRODUCTION A fire officer on a pumper was once asked why he ordered the pumper engineer to drive the 30,000 pound fire apparatus on a road that had a bridge with a 10,000 load limit. The officer responded to the question by saying that 'it was an emergency'. I have seen the dynamiter ( dont know if it is spelled right ) used on similar and various pieces and they all very accurate using that formula. Problem is most people do not know this. And they are rigging like 600 lbs pieces letting it drop 4 feet on average to a dead stop using a half inch line!!! 600 x 4 = 3000lbs!!!
RIGGING FORMULAS
Failure to read, understand, and follow manufacturesinstructions 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 = TYPE OF SLING CHOKER FACTOR 1/2'6 x 19 XIPS IWRC WITH A CHOKER ANGLE OF 85 DEGREES |
| CAPACITYxCHOKERFACTORx |
Ifyou don't know how to use these formulas, DON'T.
Someone can die or get seriously injured.
Cheatchart 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.'
Ifyou don't know how to use these formulas, DON'T.
Someone can die or get seriously injured.
Cantilever Beams
Simples Beams
Ifyou don't know how to use these formulas, DON'T.
Someone can die or get seriously injured.
In accordance with good rigging andmaintenance practices
All rigging equipment and hardware should be inspected periodically
for wear, abuse and general adequacy.
If you have something that this page is missingor have some good ideas how to improve this page feel free to contact me atInfo@Rigging.net
Page maintained by Peter . Copyright (c) . Created: 5/10/99 Updated: 9/23/01
Lift force calculator is designed to calculate its force in Newton. The lift coefficient (Cl) is a dimensionless unit, the greater the CI will generate more lift force. When the lift is in motion, pressure is created, thus the greater velocity leads to high speed in traveling. To use this lift calculator, just enter the lift coefficient (CI), its density, velocity and the area to get the resultant value. These elements has exposed to generate aerodynamic lift.
Lift Force Calculation
Lift force calculator is designed to calculate its force in Newton. The lift coefficient (Cl) is a dimensionless unit, the greater the CI will generate more lift force. When the lift is in motion, pressure is created, thus the greater velocity leads to high speed in traveling. To use this lift calculator, just enter the lift coefficient (CI), its density, velocity and the area to get the resultant value. These elements has exposed to generate aerodynamic lift.
Formula:
L = 1 / 2 (CL x ρ x V2 x A)Where,L = Lift ForceCL = Coefficient of Liftρ = DensityV = VelocityA = Area
Example:
Free Rigging Formulas
An Airplane flies at velocity of 15 m/s having an area of 25 m2. The density of air is 25 kg/m3 and Coefficient of Lift is 12.
Solution:
L = 1 / 2 (CL x ρ x V2 x A)
= 1/2 (12 x 25 x 152 x 25)
= 843750 N
